Nephaliodes rutilus Click here for a larger view

Diagnosis.--Key characters: Ommatidial size coarse (Fig. 39b); prosternal process expanded apically (Fig. 18); mesal antennal spines present (Figs. 8b, 9b); elytral humeri without epipleural tooth; pronotum with median callus only (no peripheral calli) (as in Fig. 12d); pronotum nearly glabrous and reddish in most specimens; femoral carinae absent; tibial carinae present (Fig. 22); procoxal cavities closed laterally (Fig. 24); profemoral apices rounded (Fig. 26), remaining femoral apices rounded to dentiform (Figs. 25b, 26); posterior procoxal cavities open (Fig. 18); transverse ridges on pronotal disc absent; spine on antennomere three acute (Fig. 45a, b); femoral shape gradually enlarged (Fig. 37c); antennomere three of males and most females about two-thirds length of pronotum (Fig. 46b); lateral projections into mesocoxae from mesosternum absent (Fig. 20); elytral apices with suture dentiform to weakly spined and with apicolateral spines moderately to strongly developed. Length: 12 15 mm.

Distribution and Diversity.--México-Costa Rica. Two species.

Discussion.--Nephaliodes fell as the sister taxon to the Psyrassa + Anoplocurius clade based on the implied weighting phylogenetic analysis (Fig. 58).

Nephaliodes differs from Psyrassa in having strong elytral apicolateral spines (absent or dentiform in Psyrassa) and a broader facies, tapering posteriorly (narrow for the entire body length in Psyrassa).