Proceratium valid Roger, J. 1863a. Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Ergänzung einiger früher gegebenen Beschreibungen. Berliner Entomologische Zeitschrift 7:131-214. 128093 Proceratium algiricum valid Algeria. Palearctic. Forel, A. 1899c. Trois notices myrmécologiques. Annales de la Société Entomologique de Belgique 43:303-310. 125090 Proceratium amazonicum valid Brazil (Rondônia). Neotropic. Fernandes, I. O.; Delabie, J. H. C.; Fernández, F. 2019. Contribution to the knowledge of the genus Proceratium Roger (Hymenoptera: Formicidae: Proceratiinae) in the New World. Sociobiology 66 (4):551-559. 143402 Proceratium angulinode valid Borneo (East Malaysia: Sarawak). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium arnoldi valid Zimbabwe. Afrotropic. Forel, A. 1913k. Ameisen aus Rhodesia, Kapland usw. (Hym.) gesammelt von Herrn G. Arnold, Dr. H. Brauns und Anderen. Deutsche Entomologische Zeitschrift 1913(Suppl.):203-225. 125248 Proceratium australe valid Australia (Queensland). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium austronesicum valid New Guinea (Papua New Guinea). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium avioide synonym of Proceratium avium Mauritius. Malagasy. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium avium valid Mauritius. Malagasy. Brown, W. L., Jr. 1974a. A remarkable new island isolate in the genus Proceratium (Hymenoptera: Formicidae). Psyche (Cambridge) 81:70-83. 123218 Proceratium banjaranense valid Borneo (East Malaysia: Sabah). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium bhutanense synonym of Proceratium williamsi Bhutan. Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium boltoni valid Ghana. Afrotropic. Leston, D. 1971. The Ectatommini (Hymenoptera: Formicidae) of Ghana. Journal of Entomology. Series B 40:117-120. 126875 Proceratium brasiliense valid Brazil (Santa Catarina, São Paulo). Neotropic. Borgmeier, T. 1959a. Myrmecologische Studien. II. Anais da Academia Brasileira de Ciencias 31:309-319. 122939 Proceratium bruelheidei valid China (Jiangxi). Indomalaya. Staab, M.; Xu, Z.-H.; Hita Garcia, F. 2018. [New species Proceratium bruelheidei attributed to Staab, Xu & Hita Garcia]. Pp. 148-153: Staab, M.; Hita Garcia, F.; Liu, C.; Xu, Z.-H.; Economo, E. P. 2018. Systematics of the ant genus Proceratium Roger (Hymenoptera, Formicidae, Proceratiinae) in China – with descriptions of three new species based on micro-CT enhanced next-generation-morphology. ZooKeys 770:137-192. 143186 Proceratium burundense valid Burundi. Afrotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium caeca unresolved junior homonym New Guinea (Indonesia). Australasia. Donisthorpe, H. 1949b ("1948"). A fifth instalment of the Ross Collection of ants from New Guinea. Annals and Magazine of Natural History (12)1:487-506. 124366 Proceratium caledonicum valid New Caledonia. Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium californicum valid U.S.A. (California). Nearctic. Cook, T. W. 1953. The ants of California. Palo Alto, California: Pacific Books, 462 pp. 123836 Proceratium carinifrons synonym of Proceratium papuanum Indonesia (Sumatra). Indomalaya. Menozzi, C. 1939b. Qualche nuova formica di Sumatra. Tijdschrift voor Entomologie 82:175-181. 127382 Proceratium carri valid Mozambique. Afrotropic. Hita Garcia, F.; Hawkes, P. G.; Alpert, G. D. 2014. Taxonomy of the ant genus Proceratium Roger (Hymenoptera, Formicidae) in the Afrotropical region with a revision of the P. arnoldi clade and description of four new species. ZooKeys 447:47-86. 142669 Proceratium catio valid Colombia. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium cavernicola synonym of Proceratium micrommatum Panama. Neotropic. Borgmeier, T. 1937b. Formigas novas ou pouco conhecidas da América do Sul e Central, principalmente do Brasil (Hym. Formicidae). Archivos do Instituto de Biologia Vegetal (Rio de Janeiro) 3:217-255. 122922 Proceratium cavinodus valid Australia (Northern Territory). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium chickasaw valid U.S.A. (Tennessee). Nearctic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium coecum homonym replaced by Proceratium terroni Cameroon. Afrotropic. Terron, G. 1981. Deux nouvelles espèces éthiopiennes pour le genre Proceratium (Hym.: Formicidae). Annales de la Faculté des Sciences de Yaoundé 28:95-103. 129319 Proceratium colombicum valid Colombia. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium compitale valid U.S.A. (Texas). Nearctic. Ward, P. S. 1988. Mesic elements in the western Nearctic ant fauna: taxonomic and biological notes on Amblyopone, Proceratium, and Smithistruma (Hymenoptera: Formicidae). Journal of the Kansas Entomological Society 61:102-124. 129604 Proceratium confinium valid Pakistan. Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium convexiceps valid Costa Rica. Neotropic. Borgmeier, T. 1957a. Myrmecologische Studien, I. Anais da Academia Brasileira de Ciencias 29:103-128. 122934 Proceratium crassicorne valid U.S.A. (District of Columbia). Nearctic. Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360. 124591 Proceratium crassicorne vestitum synonym of Proceratium silaceum U.S.A. (Maryland). Nearctic. Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360. 124591 Proceratium creek valid U.S.A. (Georgia). Nearctic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium croceum valid U.S.A. (Carolina). Nearctic. Roger, J. 1860. Die Ponera-artigen Ameisen. Berliner Entomologische Zeitschrift 4:278-312. 128087 Proceratium cubanum valid Cuba. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium dayak valid Borneo (East Malaysia: Sarawak). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium deelemani valid Borneo (Indonesia: Kalimantan). Indomalaya. Perrault, G. H. 1981. Proceratium deelemani, nouvelle espèce de Kalimantan. Nouvelle Revue d'Entomologie 11:189-193. 127772 Proceratium denticulatum valid Dominican Amber (Dominican Republic, Miocene). Lattke, J. E. 1991b ("1990"). The genus Proceratium Roger in Dominican amber (Hymenoptera: Formicidae). Caribbean Journal of Science 26:101-103. 126826 Proceratium diplopyx valid Madagascar. Malagasy. Brown, W. L., Jr. 1980b. Protalaridris armata species nov. Pilot Register of Zoology Card No. 37:1-2. 123233 Proceratium dominicanum valid Dominican Amber (Dominican Republic, Miocene). de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium dusun valid Borneo (East Malaysia: Sabah). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium ecuadoriense valid Ecuador. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium eocenicum valid Baltic Amber (Eocene). Dlussky, G. M. 2009. The ant subfamilies Ponerinae, Cerapachyinae and Pseudomyrmecinae (Hymenoptera, Formicidae) in the Late Eocene ambers of Europe. Paleontological Journal 43:1043-1086. 131105 Proceratium europaea synonym of Proceratium melinum Greece. Palearctic. Forel, A. 1886e. Nouvelles fourmis de Grèce récoltées par M. E. von Oertzen. Annales de la Société Entomologique de Belgique 30:clix-clxviii. 125014 Proceratium europaea rossica obsolete combination Russia. Palearctic. Arnol'di, K. V. 1930b. Studien über die Systematik der Ameisen. V. Der erste Vertreter der Tribe Proceratiini (Formicidae) in USSR. Zoologischer Anzeiger 91:143-146. 122350 Proceratium fialai synonym of Proceratium melinum Czech Republic. Palearctic. Kratochvíl, J.; Novák, V.; Šnoflák, J. 1944. Mohelno. Soubor praci vĕnovaných studiu významné památky přírodni. 5. Hymenoptera - Aculeata. Formicidae - Apidae - Vespoidea. Archiv Svazu na Ochranu Prírody a Domoviny na Moravé 6:1-155. 126504 Proceratium formosicola synonym of Proceratium japonicum Taiwan. Indomalaya. Terayama, M. 1985f. Descriptions of a new species of the genus Proceratium Roger from Taiwan (Hymenoptera, Formicidae). Kontyû 53:406-408. 129271 Proceratium foveolatum valid Borneo (East Malaysia: Sarawak). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium galilaeum valid Israel. Palearctic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium gibberum valid Dominican Amber (Dominican Republic, Miocene). de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium gibbosum valid India (Kerala). Indomalaya. Sadasivan, K.; Kripakaran, M. 2022. First record of Proceratium Roger, 1863, Zasphinctus Wheeler, 1918, and Vollenhovia Mayr, 1865 (Hymenoptera: Formicidae) from the Western Ghats of peninsular India, description of three new species, and implications for Indian biogeography. Journal of Threatened Taxa 14 (7):21368–21387. 144017 Proceratium gigas valid Australia (New South Wales). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium goliath valid Costa Rica. Neotropic. Kempf, W. W.; Brown, W. L., Jr. 1968. Report on some Neotropical ant studies. Papeis Avulsos de Zoologia (São Paulo) 22:89-102. 126381 Proceratium google valid Madagascar. Malagasy. Fisher, B. L. 2005. A new species of Discothyrea Roger from Mauritius and a new species of Proceratium Roger from Madagascar (Hymenoptera: Formicidae). Proceedings of the California Academy of Sciences 56 (35):657-667. 131285 Proceratium gracile valid Australia (Queensland). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium hirsutum valid Australia (Queensland). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium itoi valid Japan. Palearctic. Forel, A. 1918a. Études myrmécologiques en 1917. Bulletin de la Société Vaudoise des Sciences Naturelles 51:717-727. 125261 Proceratium ivimka valid New Guinea (Papua New Guinea). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium japonicum valid Japan. Palearctic. Santschi, F. 1937h. Fourmis du Japon et de Formose. Bulletin et Annales de la Société Entomologique de Belgique 77:361-388. 128438 Proceratium kepingmai valid China (Jiangxi). Indomalaya. Staab, M.; Xu, Z.-H.; Hita Garcia, F. 2018. [New species Proceratium kepingmai attributed to Staab, Xu & Hita Garcia]. Pp. 157-162 in: Staab, M.; Hita Garcia, F.; Liu, C.; Xu, Z.-H.; Economo, E. P. 2018. Systematics of the ant genus Proceratium Roger (Hymenoptera, Formicidae, Proceratiinae) in China – with descriptions of three new species based on micro-CT enhanced next-generation-morphology. ZooKeys 770:137-192. 143187 Proceratium lattkei valid Venezuela. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium lombokense valid Indonesia (Lombok). Indomalaya. Emery, C. 1897c. Formicidarum species novae vel minus cognitae in collectione Musaei Nationalis Hungarici quas in Nova-Guinea, colonia germanica, collegit L. Biró. Természetrajzi Füzetek 20:571-599. 124619 Proceratium longigaster valid Vietnam. Indomalaya. Karavaiev, V. 1935a. Neue Ameisen aus dem Indo-Australischen Gebiet, nebst Revision einiger Formen. Treubia 15:57-118. 126276 Proceratium longiscapus valid Dominican Republic. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium longmenense valid China (Yunnan). Palearctic. Xu, Z. 2006. Three new species of the ant genera Amblyopone Erichson, 1842 and Proceratium Roger, 1863 (Hymenoptera: Formicidae) from Yunnan, China. Myrmecologische Nachrichten 8:151-155. 132635 Proceratium lunatum valid Cameroon. Afrotropic. Terron, G. 1981. Deux nouvelles espèces éthiopiennes pour le genre Proceratium (Hym.: Formicidae). Annales de la Faculté des Sciences de Yaoundé 28:95-103. 129319 Proceratium malesianum valid West Malaysia. Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium mancum valid Honduras. Neotropic. Mann, W. M. 1922. Ants from Honduras and Guatemala. Proceedings of the United States National Museum 61:1-54. 127073 Proceratium mayri synonym of Proceratium algiricum Greece (Corfu). Palearctic. Forel, A. 1899c. Trois notices myrmécologiques. Annales de la Société Entomologique de Belgique 43:303-310. 125090 Proceratium melinum valid Europe. Palearctic. Roger, J. 1860. Die Ponera-artigen Ameisen. Berliner Entomologische Zeitschrift 4:278-312. 128087 Proceratium melitanse unavailable misspelling Malta. Palearctic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium melitense valid Malta. Palearctic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium mexicanum valid Mexico (Tamaulipas). Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium micrommatum valid South America. Neotropic. Roger, J. 1863a. Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Ergänzung einiger früher gegebenen Beschreibungen. Berliner Entomologische Zeitschrift 7:131-214. 128093 Proceratium microsculptum valid Borneo (East Malaysia: Sabah). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium morisitai valid Japan. Palearctic. Onoyama, K.; Yoshimura, M. 2002. The ants of the genus Proceratium (Hymenoptera: Formicidae) in Japan. Entomological Science 5:29-49. 131962 Proceratium nilo valid Tanzania. Afrotropic. Hita Garcia, F.; Hawkes, P. G.; Alpert, G. D. 2014. Taxonomy of the ant genus Proceratium Roger (Hymenoptera, Formicidae) in the Afrotropical region with a revision of the P. arnoldi clade and description of four new species. ZooKeys 447:47-86. 142669 Proceratium normandi synonym of Proceratium numidicum Algeria. Palearctic. Santschi, F. 1929e. Fourmis du Maroc, d'Algérie et de Tunisie. Bulletin et Annales de la Société Entomologique de Belgique 69:138-165. 128384 Proceratium nujiangense synonym of Proceratium zhaoi China (Yunnan). Palearctic. Xu, Z. 2006. Three new species of the ant genera Amblyopone Erichson, 1842 and Proceratium Roger, 1863 (Hymenoptera: Formicidae) from Yunnan, China. Myrmecologische Nachrichten 8:151-155. 132635 Proceratium numidicum valid Tunisia. Palearctic. Santschi, F. 1912f. Nouvelles fourmis de Tunisie récoltées par le Dr. Normand. Bulletin de la Société d'Histoire Naturelle de l'Afrique du Nord 3:172-175. 128273 Proceratium oceanicum valid Fiji Is (Viti Levu). Oceania. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium panamense valid Panama. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium papuanum valid New Guinea (Papua New Guinea). Australasia. Emery, C. 1897c. Formicidarum species novae vel minus cognitae in collectione Musaei Nationalis Hungarici quas in Nova-Guinea, colonia germanica, collegit L. Biró. Természetrajzi Füzetek 20:571-599. 124619 Proceratium pergandei valid U.S.A. (Pennsylvania, District of Columbia). Nearctic. Emery, C. 1895d. Beiträge zur Kenntniss der nordamerikanischen Ameisenfauna. (Schluss). Zoologische Jahrbücher. Abteilung für Systematik, Geographie und Biologie der Tiere 8:257-360. 124591 Proceratium petrosum valid Russia (Sikhote-Alin, Bol’shaya Svetlovodnaya, Eocene). Dlussky, G. M.; Rasnitsyn, A. P.; Perfilieva, K. S. 2015. The ants (Hymenoptera: Formicidae) of Bol’shaya Svetlovodnaya (Late Eocene of Sikhote-Alin, Russian Far East). Caucasian Entomological Bulletin 11 (1):131-152. 142813 Proceratium poinari valid Dominican Amber (Dominican Republic, Miocene). Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 130720 Proceratium politum valid New Caledonia. Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium pumilio valid Australia (Queensland). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium relictum valid Fiji (Taveuni). Oceania. Mann, W. M. 1921. The ants of the Fiji Islands. Bulletin of the Museum of Comparative Zoology 64:401-499. 127072 Proceratium robustum valid Australia (New South Wales). Australasia. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium rossica synonym of Proceratium melinum Russia. Palearctic. Arnol'di, K. V. 1930b. Studien über die Systematik der Ameisen. V. Der erste Vertreter der Tribe Proceratiini (Formicidae) in USSR. Zoologischer Anzeiger 91:143-146. 122350 Proceratium sali valid Tanzania. Afrotropic. Hita Garcia, F.; Hawkes, P. G.; Alpert, G. D. 2014. Taxonomy of the ant genus Proceratium Roger (Hymenoptera, Formicidae) in the Afrotropical region with a revision of the P. arnoldi clade and description of four new species. ZooKeys 447:47-86. 142669 Proceratium shohei valid China (Yunnan). Indomalaya. Staab, M.; Xu, Z.-H.; Hita Garcia, F. 2018. [New species Proceratium shohei attributed to Staab, Xu & Hita Garcia]. Pp. 176-181 in: Staab, M.; Hita Garcia, F.; Liu, C.; Xu, Z.-H.; Economo, E. P. 2018. Systematics of the ant genus Proceratium Roger (Hymenoptera, Formicidae, Proceratiinae) in China – with descriptions of three new species based on micro-CT enhanced next-generation-morphology. ZooKeys 770:137-192. 143188 Proceratium siamense valid Thailand. Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium silaceum valid North America. Nearctic. Roger, J. 1863a. Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Ergänzung einiger früher gegebenen Beschreibungen. Berliner Entomologische Zeitschrift 7:131-214. 128093 Proceratium silaceum rugulosum synonym of Proceratium silaceum U.S.A. (Indiana). Nearctic. Wheeler, W. M. 1915b. Some additions to the North American ant-fauna. Bulletin of the American Museum of Natural History 34:389-421. 130089 Proceratium silisili valid Samoa (Savai’i). Oceania. Liu, C.; Fischer, G.; Economo, E. P. 2015. A rare ant on Samoa: first record of the cryptic subfamily Proceratiinae (Hymenoptera, Formicidae) and description of a new Proceratium Roger species. Journal of Hymenoptera Research 46:35-44. 142858 Proceratium snellingi valid New Guinea (Papua New Guinea). Australasia. Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 130720 Proceratium sokoke valid Kenya. Afrotropic. Hita Garcia, F.; Hawkes, P. G.; Alpert, G. D. 2014. Taxonomy of the ant genus Proceratium Roger (Hymenoptera, Formicidae) in the Afrotropical region with a revision of the P. arnoldi clade and description of four new species. ZooKeys 447:47-86. 142669 Proceratium stictum valid Australia (Queensland). Australasia. Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118:173-362. 123146 Proceratium striativenter valid Borneo (East Malaysia: Sarawak). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium sulawense valid Indonesia (Sulawesi). Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium taino valid Dominican Republic. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium terraealtae valid West Malaysia. Indomalaya. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium terroni valid Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. 122860 Proceratium tio valid Mexico (Veracruz). Neotropic. Snelling, R. R.; Cover, S. P. 1992. Description of a new Proceratium from Mexico (Hymenoptera: Formicidae). Psyche (Cambridge) 99:49-53. 128904 Proceratium toschii valid Kenya. Afrotropic. Consani, M. 1951. Formiche dell'Africa Orientale I. Bollettino dell'Istituto di Entomologia della Università degli Studi di Bologna 18:167-172. 123826 Proceratium transitionis valid Colombia. Neotropic. de Andrade, M. L. 2003a. [Untitled. New species attributed to de Andrade only.]. Pp. 63-396 (part) in: Baroni Urbani, C.; de Andrade, M. L. 2003a. The ant genus Proceratium in the extant and fossil record (Hymenoptera: Formicidae). Museo Regionale di Scienze Naturali Monografie (Turin) 36:1-492. 131019 Proceratium vinaka valid Fiji Is (Viti Levu). Oceania. Hita Garcia, F.; Sarnat, E. M.; Economo, E. P. 2015. Revision of the ant genus Proceratium Roger (Hymenoptera, Proceratiinae) in Fiji. ZooKeys 475:97-112. 142695 Proceratium watasei valid Japan. Palearctic. Wheeler, W. M. 1906h. The ants of Japan. Bulletin of the American Museum of Natural History 22:301-328. 130013 Proceratium williamsi valid India (Meghalaya). Indomalaya. Mathew, R.; Tiwari, R. N. 2000. Insecta: Hymenoptera: Formicidae. Pp. 251-409 in: Director; Zoological Survey of India (ed.) 2000. Fauna of of Meghalaya. Part 7. [State Fauna Series 4.] Insecta 2000. Calcutta: Zoological Survey of India, 621 pp. 131843 Proceratium zhaoi valid China (Yunnan). Palearctic. Xu, Z.-H. 2000c. A systematic study of the ant genus Proceratium Roger from China (Hymenoptera: Formicidae). Acta Zootaxonomica Sinica 25:434-437. 132656