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Types Mus. Comp. Zool. Harvard.
Diagnosis Close to gangamonHNS, also of Mexico, and probably also to epetrionHNS and thrasysHNS, but distinguished from these and other members of the scrobiferaHNS group by the following combination of traits.
Major: rear one-fourth of dorsal head surface, rear one-half of the lateral head surfaces, and area between the eye and frontal lobes rugoreticulate; anterior half of the frontal lobes carinulate; entire central half of the dorsal head surface foveolate only; all of promesonotal and postpetiolar dorsa carinulate to rugoreticulate; anterior central strip of first gastral tergite longitudinally striate; humerus composing a very large lobe that projects high above the mesonotal convexity; posterior half of dorsal head profile weakly concave.
Minor: the two humeri conulate, the tip of each bearing very long hairs; head and prothorax entirely smooth and shiny.
Measurements (mm) Holotype major: HW 1.28, HL 1.60, SL 0.62, EL 0.18, PW 0.82.
Paratype minor: HW 0.62, HL 0.64, SL 0.60, EL 0.12, PW 0.42.
Color Major and minor: body dark brown, appendages medium brown, tarsi yellow.
Range Known only from the type locality.
Figure Upper: holotype, major. Lower: paratype, minor. MEXICO: Gomez Farias, Tamaulipas, 400-600 m (Cornell University Mexico Field Party, 1964). Scale bars = 1 mm.