Redescription of Xenicopoda Moore and Legner (Coleoptera:Staphylinidae, Omaliinae), With Supplementary Notes

Abstract

Since then I discovered a series of six X. helenae in the H. C. Fall Collection at the Museum of Comparative Zoology. Examination of these specimens showed that the unusual front tarsi found on the type are present only in males. Females have normal female omaliine protarsi, slender and with equal tarsal claws. This distinct difference between the sexes and the availability of additional specimens of Xenicopoda made it seem worthwhile to publish an amplified description of the genus. Detailed study of the type and the six other specimens also led to the discovery of a number of discrepancies between the specimens and the original description. The proportions as given in the description and as shown in the original habitus drawing are rather distorted, owing partly, perhaps, to the fact that the type is somewhat curled up. Proportions based on careful measurements of the seven available specimens will be mentioned below. The head shape in the original drawing is rather distorted as well, and a new figure is given.