Psyrassaforma nitida Click here for a larger view

Diagnosis.--Key characters: Ommatidial size coarse (Fig. 39b); prosternal process not planar, apex strongly expanded (Fig. 18); mesal antennal spines present (Figs. 8b, 9b); pronotal impunctate regions present; pronotum without longitudinal rugosities, transverse ridges, or large, uniformly-sized confluent punctures; femoral carinae absent; procoxal cavities closed laterally (Fig. 24); femoral apices rounded (Fig. 26); elytra without dense golden or silver pubescence; procoxal cavities open posteriorly (Fig. 18); tibial carinae present (Fig. 22); femora clavate (Fig. 37b); pronotum and head with dense yellow and white pubescence patches (of type similar to Fig. 19); elytra without patches of dense pubescence and nearly glabrous; antennomeres 3+4 about as long as pronotum; pronotum broad and flattened dorsally; elytral apices moderately to strongly bispinose. Length: 23-30 mm.

Distribution and Diversity.--México, Belize, Costa Rica, Honduras. Two species.

Discussion.--Psyrassaforma is closely related to Aneflus and Megapsyrassa (Figs. 50, 56) based on the implied weighting analysis. Psyrassaforma differs from Aneflus and Megapsyrasssa in having clavate femora (gradually enlarged or linear in Aneflus and Megapsyrassa), dense patches of pubescence on the head and pronotum (strictly uniform, recumbent pubescence in Aneflus and nearly glabrous in Megapsyrassa), and pronotum broad and impressed dorsally (much narrower than elytra and not flattened dorsally in Aneflus and Megapsyrassa).