Pergande, T. 1893. On a collection of Formicidae from Lower California and Sonora, Mexico. Proceedings of the California Academy of Sciences (2)4:26-36. PDF

Notes: Pagebase date 19 September 1893 but article said to be "in press" in annual report for 1893 presented at the Academy meeting of 2 January 1894. Paper read by title at the Academy meeting of 6 November 1893. Whole volume issued 28 September 1894.

Pergande, T. 1894. Formicidae of Lower California, Mexico. Proceedings of the California Academy of Sciences (2)4:161-165. PDF

Notes: Article is likely to have been published shortly after the pagebase date of 17 May 1894. Whole volume issued 28 September 1894.

Pergande, T. 1896. Mexican Formicidae. Proceedings of the California Academy of Sciences (2)5:858-896. PDF

Notes: Pagebase date is 30 December 1895. Publication is likely to have occurred within a week or two of this date. Whole volume issued 18 January 1896.

Pergande, T. 1900. Papers from the Harriman Alaska expedition. XVII. Entomological results (11): Formicidae. Proceedings of the Washington Academy of Sciences 2:519-521. PDF