LUTROCHIDAE Author: John F. Lawrence, 2001. Classification Suborder Polyphaga, Series Elateriformia, Superfamily Byrrhoidea. Description Antenae with 11 segments, serrate or pectinate or clavate. Antennal insertions exposed. Visible portion of procoxa transverse with the trochantin at least partly exposed. Procoxal cavity externally open and internally open. Mesocoxae separated by more than 1 coxal width, with mesocoxal cavity laterally open. Tarsal formula 5-5-5. Numberof ventrites 5 with 2 connate. Body length 3-5 mm. Ovate, pubescent. Head large, declined, with prominent labrum and mandibles. Eyes hairy. Legs long. Lutrochus. Quick identification Lutrochidae contains the single genus Lutrochus, a dryopid-like beetle with large head, long legs and relatively long, somewhat pectinate antennae. Like many Dryopidae, Lutrochus have well-developed setae projecting from the eye surface. Genera occurring in Costa Rica Lutrochus. © CSIRO Emtomology, 1999 Lutrochus © CSIRO Emtomology, 1999 Dryopid eye Derechos Reservados INBio. Copyrights INBio