Yves Bousquet

Description of a New Genus and Species of Endomychidae (Coleoptera: Cucujoidea) from Northeastern North America

Abstract A new genus and species of Endomychidae from northeastern North America, Hadromychus chandleri, is described and illustrated. The genus is likely the adelphotaxon (sister-group) to Danascelis Tomaszewska from Pakistan, based on the following character states: antennal insertions hidden, swollen antennomere 9 of male, paired foveae on each side of the pronotal base, pronotum lacking a thick basal bead and sublateral sulci, unicarinate mesosternum, absence of metasternal discrimen, absence of sutural stria on elytron, and slightly lobed tarsomeres. Pending a cladistic analysis of the Endomychidae, both genera are best placed at present in Epipocinae, though it is possible they may be sister taxa to the subfamily Leiestinae based on the sharing of antennal insertions hidden in dorsal view, reduced prosternal process, weakly produced anterior pronotal angles, and slightly lobed tarsomeres. Sexual dimorphism in Endomychidae is discussed briefly.

Redescription of Aneurops convergens (Sharp), New Combination (Coleoptera: Monotomidae)

Abstract Aneurops convergens (Sharp 1900), new combination, from Arizona, New Mexico, and México is redescribed and compared with the other species of the genus, A. championi Sharp. This is the first record of the genus Aneurops Sharp for North America north of México.

New Synonymies and Notes on North American Loxandrus LeConte (Coleoptera: Carabidae)

Abstract The following new synonymies within the genus Loxandrus are proposed: L. parvicollis Casey, 1918 and L. concinnus Casey, 1918 with L. celeris (Dejean, 1828); L. crenulatus Chaudoir, 1868 with L. crenatus LeConte, 1852; L. calathinus LeConte, 1878 and L. cursitans Casey, 1918 with L. agilis (Dejean, 1828); L. suturalis Casey, 1918 with L. cervicalis Casey, 1918; L. comptus Casey, 1918, L. contumax Casey, 1918 and L. breviusculus Casey, 1924 with L. floridanus LeConte, 1878; L. aduncus Allen, 1972 with L. parvulus Chaudoir, 1868; L. minutus Allen, 1972 with L. pusillus LeConte, 1852; L. vitiosus Allen, 1972 with L. vulneratus Casey, 1918; L. fulgens Casey, 1918 with L. brevicollis (LeConte, 1848); L. ludovicianus Casey, 1918 with L. collucens Casey, 1918; L. limatus Casey, 1918 with L. rectus (Say, 1823); L. reflexus LeConte, 1878 and L. lateralis Casey, 1918 with L. saphyrinus (Chaudoir, 1843). Syntypes of Loxandrus accelerans Casey, 1918, L. collucens Casey, 1918, L. piceolus Chaudoir, 1868, L. piciventris (LeConte, 1848), and L. proximus Chaudoir, 1868 could not be associated with any species treated by Allen (1972) and are likely valid species. Species groups for North American Loxandrus are briefly characterized. Species belonging to each group are listed and their distributions noted.

Description of a New Species of Pterostichus Bonelli, P. barri, from the Appalachian Mountains (Coleoptera: Carabidae)

Abstract A species of the genus Pterostichus Bonelli, Pterostichus barri new species, is described from specimens collected in the Appalachian Mountains. It belongs to the subgenus Feronina Casey and differs from the only other species included in that subgenus, P. palmi Schaeffer, in having three (instead of two) discal setae on elytral interval 3 and the median lobe of the aedeagus is more robust with the apical lamella shorter. Pterostichus barri differs from P. (Paraferonia) lubricus LeConte, a morphologically similar species also living in the Appalachian Mountains, in having the elytral striae more impressed, particularly the lateral ones, the last visible sternum of the male with a small, median protuberance, the median lobe rounded between the basal bulb and the shaft, and the right paramere elongate apically.

Redescription of Leptipsius striatus (LeConte) and description of a new species of Leptipsius from United States (Coleoptera: Monotomidae)

Abstract The North American monotomid fauna, north of Mexico, includes two described species of the genus Leptipsius Casey, 1916, L. striatus (LeConte, 1858) and L. dilutus Casey, 1916. Adults of L. striatus are redescribed and comments are provided on L. dilutus. A new species, L. imberbis, is described from specimens collected in New Mexico and Arizona. Based on a study of syntypes, the following species, previously included in the genus Bactridium, are transferred to the genus Leptipsius: L. brevicornis (Sharp, 1900), L. crassus (Sharp, 1900), and L. eumorphus (Sharp, 1900) [new combinations].