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Types Mus. Comp. Zool. Harvard.
diagnosis A member of the crassicornisHNS group distinguished by the following combination of traits. Major: occiput, frontal triangle, and central piece of clypeus smooth and shiny, area between frontal carinae and eyes heavily rugoreticulate, and rest of dorsal surface of head longitudinally carinulate; all of mesosoma, waist, and anterior half of central strip of gastral tergite foveolate and opaque; pronotal dorsum transversely carinulate; pronotal profile in dorsal-oblique view bilobous. Minor: all of head, mesosoma, and waist, and most of the first gastral tergite foveolate and opaque; anterior strip of pronotal dorsum transversely rugulose; mandibles and tarsi dark yellow.
Measurements (mm) Holotype major: HW 1.30, HL 1.30, SL 0.80, EL 0.20, PW 0.66. Paratype minor: HW 0.66, HL 0.76, SL 0.80, EL 0.16, PW 0.46.
color Major: head and appendages light reddish brown; rest of body medium reddish brown. Minor: body medium reddish brown, mandibles and tarsi dark yellow.
Range Known only from the type locality.
Biology The type series were collected in pine forest.
Figure Upper: holotype, major. Lower: paratype, minor. MEXICO: pine forest, km 225 on Highway 85, Hidalgo (Cornell University Mexico Field Party 1965). Scale bars = 1 mm.