Ambatoiella vigilans
Ambatoiella vigilans Mello-Leitão, 1943, from original description.









Ambatoiella Mello-Leitão, 1943 is a genus of the Neotropical family Cosmetidae subfamily Cosmetinae with two species from Ecuador.


Ambatoiella Mello-Leitão, 1943a: 8. (junior subjective synonym of Vonones Simon, 1879 according to Goodnight & Goodnight (1953: 60); synonymy disclaimed by Kury (2003).

Etymology Edit

The name of the genus refers to the locality of the type species: Ambato, Ecuador.

Placement Edit

Type species Edit

Ambatoiella vigilans Mello-Leitão, 1943, by original designation.

Diagnosis Edit

Included species Edit

Notes Edit

Ambatoiella sexpunctata (Roewer, 1914) transfered from Eulibitia by Medrano & Kury, 2017. They say (p.48) that "This species is morphologically similar to Ambatoiella vigilans Mello-Leitão, 1943 by: (1) coxa IV only apically visible in dorsal view, and (2) coda large, about one third the length of DS. Likewise, the type localities of the two species are only 50 km apart from each other and are in the same mountain range. There is a strong possibility that they are male and female of the same species; however, we decided to maintain them as separate species until further analyses have been carried out."

*The date of 1914 given in Medrano & Kury, 2017 (p.48) disagrees with Kury (2003) stating 1919, also the online version of "tome 10 fasc 2" containing this description is dated 1919, see link below:

Compare Cocholla circulata Roewer 1959, similar dorsal markings.


Medrano & Kury, 2017. [To add.]

Mello-Leitão, C.F., 1943. Arácnidos recogidos en el Ecuador y el Perú por la Señora H. E. Frizell Don. Comunicaciones zoologicas del Museo de Historia Natural de Montevideo, 1(5), 1–8.

Kury, A. B., 2003. Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Iberica de Aracnología, Zaragoza, vol. especial monográfico, nº 1: 1-337.