Diagnosis
|
Distinguished
from other species of Oberthuerella by having the head, mesosoma
and metasoma all dark brown/black (in other species, the metasoma is
yellow/orange); the only other species that shares this trait is O.
kibalensis, and this species can be differentiated based on slight
color differences in setae on the hind legs and metasoma, where in O.
kibalensis the setae are silvery-white, and in O. nigrescens,
the setae are a golden-yellow. Also, in O. kibalensis, the lateral
aspect of the pronotum is deeply costate, and in O. nigrescens,
the same is foveate with remnant traces of costae. |
