Species

Colladonus titulus (DeLong, 1946)

Descendants and synonyms

Idiodonus titulus DeLong, 1946b: 24.
Holotype; male; d6f106f0-d6ce-4e46-a9e2-98adce54948f; deposited at: Ohio State University (OSU); Mexico City, D.F., Mexico, 42 Kilometers south, at an elevation of 10,000 ft., September 5, 1939, collected by Plummer and DeLong
Idiodonus goodi DeLong, 1946b: 27.
Holotype; female; 375cfc1c-372a-4ab8-921c-4a36573e02c0; deposited at: Ohio State University (OSU); La Guarda, D. F., Mexico, elevation 8500 ft., October 26, 1921, collected by Good, Plummer and DeLong.

Idiodonus goodi DeLong, 1946 (subjective synonym of Idiodonus titulus DeLong, 1946) in Nielson, 1988b: 118.
Colladonus titulus (DeLong, 1946) in Pinedo-Escatel, 2025: 5.

DeLong, D.M. (1946b) The Mexican species of Idiodonus (Homoptera-Cicadellidae). The Ohio Journal of Science, 46, 13–30.
Nielson, M.W. (1988b) Colladonus and related genera of Mexico and Central America with new taxa and synonymy (Homoptera: Cicadellidae). Great Basin Naturalist Memoirs, 12, 103–134.

Pinedo-Escatel, J.A. (2025) Cicadélidos de la tribu Athysanini asociados a bosques de pino y encino en México (Hemiptera: Cicadellidae), con la descripción de una especie nueva del género Eutettix [Leafhoppers of the tribe Athysanini associated to pine and oak forests in Mexico (Hemiptera: Cicadellidae), with description of a new species of the genus Eutettix]. Revista Mexicana de Biodiversidad, 96, 1–15. https://doi.org/10.22201/ib.20078706e.2025.96.5469

Gender, form, and etymology

Etymology:

Latin: titulus (title, tablet)

Summary of taxonomic names by rank, showing valid extant names, fossil names, invalid names, and total counts.
Taxon	Valid names
Rank	Extant	Fossil	Invalid	Total
Species	1	0	2	3