Dermacentor dissimilis, Cooley, 1947

Robbins, Richard G., Nava, Santiago, Ronai, Isobel, Chong, Kaylin L. & Guglielmone, Alberto A., 2025, Type specimens of the world’s hard tick species (Acari: Ixodida: Ixodidae): collection data and depositories for all valid names and the current status of invalid names, Zootaxa 5606 (1), pp. 1-287 : 70

dissimilis Cooley, 1947 , Dermacentor

Cooley, R.A. (1947) Dermacentor dissimilis , a new species of tick from southern Mexico. American Museum Novitates, 1332, 1–3.

Type depositories: AMNH?: holotype (female) and paratypes (females and a nymph) ; USNPC?: a paratype (female) , USNTC: paratypes (females and a nymph) ( Cooley 1947) , MCZ: paratype (a female)

Type locality: Las Margaritas , 45 km southeast of Comitán, Chiapas, Mexico

Type host: horse

Comments: Keirans & Clifford (1984) listed the holotype as deposited in the USNTC, but Hernández et al. (2011) confirmed that the holotype is held in the AMNH. Salley et al. (1978) did not include type specimens deposited in the USNPC. KLC visited the AMNH in 2024 and the paratype nymph was not found there; however, an unreported paratype (labeled as allotype male) was found.