HYBOSORIDAE

Author: John F. Lawrence.

Classification

Suborder Polyphaga, Series Scarabaeiformia, Superfamily Scarabaeoidea.

Description

Antenae with 10 segments and a 3 segments club. Antennal insertions concealed. Visible portion of procoxa projecting bellow prosternum with the trochantin concealed. Procoxal cavity externally closed and internally open. Mesocoxae contigous, with mesocoxal cavity laterally open. Tarsal formula 5-5-5. Numberof ventrites 6 or 7 without ventrites connate. Body length 4-8 mm. Broadly ovate to oblong, usually convex, smooth and glabrous, occasionally slightly flattened with carinate elytra. Labrum and mandibles exposed. Antennall club lamellate and cupuliform.

Quick identification

Hybosoridae contains a variety of small scarabs, which may be ovate, convex and glabrous or occasionally flattened and tuberculate. They may be distinguished from similar scarabaeids by a combination functional 8th spiracles, visible labrum and mandibles, and cupuliform antennal club.

Genera occurring in Costa Rica

Anaides, Dicraeodon, Chaetodus, Coilodes.

© CSIRO Emtomology, 1999 Anaides	© CSIRO Emtomology, 1999 Cryptogenius	© CSIRO Emtomology, 1999 Coelodes