Passalus (Pertinax) nodifrons Dibb, 1948

Jiménez-Ferbans, Larry, Reyes-Castillo, Pedro & Bevilaqua, Marcus, 2022, The Brachypterous Species of Passalus (Pertinax) (Coleoptera: Passalidae), with the Description of a New Species from Sierra Nevada de Santa Marta, Colombia, Neotropical Entomology 51 (5), pp. 722-741 : 738

Passalus (Pertinax) nodifrons Dibb, 1948

Diagnosis: Anterior frontal edge of head slightly concave, lacking notch medialy; mediofrontal area with rough surface; cephalic nodule large; inner tubercles large, but smaller than the latero + mediofrontal tubercles, from which are separate; anterofrontal ridges absent, posterofrontal ridges straight and strong; prepisternum with scarce pubescence; mesosternal scars absent; epipleura and humeri glabrous.

Remarks: Dibb (1948) described this species based on specimens from “ Bolivia: La Paz ”, indicating it has “elytra soldered”. Until now, nobody has cited more specimens of this species. In MZUSP there is a specimen which meets the original description, with the following label: Peru. Boqueron. Loreto. VIII.[1]948 / Passalus nodifrons Dibb, P. Pereira det. 1967. In 1948 the Department of Loreto was larger and later it was divided into Loreto and Ucayali. In Ucayali there is a place named Boquerón del Padre Abad, it is a canyon in a mountain that reaches 1300 m a.s.l. Bevilaqua and Fonseca (in prep.) redescribe the species based on the original type material and it is hemibrachypterous.