Donald S. Chandler

New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, Canada: Pselaphinae

Abstract Twenty species of Pselaphinae are newly recorded from New Brunswick, Canada. This brings the total number of species known from the province to 36. Thirteen of these species are newly recorded for the Maritime provinces of Canada. Dalmosella tenuis Casey and Brachygluta luniger (LeConte) are newly recorded for Canada. Collection and habitat data are presented for these species.

The mayflies (Ephemeroptera) of New Hampshire: Seasonality and Diversity of the Stream Fauna (1)

Abstract Season-long sampling in streams and rivers produced 112 species of mayflies, which with other records totals 121 species for New Hampshire; 88 of these are new state records. Appearance of blackwing/mature larvae were used to develop statements on seasonality of species. Distinct differences were found between the faunas of southern and north-central New Hampshire, with an important factor being water temperatures through the season. A biogeographic analysis coupled with known habitat preferences reinforced the hypothesis that water temperature was a critical factor in determining species distributions in the state.

New Records of Corylophidae (Coleoptera) from the Maritime Provinces of Canada

New records establish the presence of the Ripiphoridae in the Maritime Provinces of Canada. Ripiphorus fasciatus (Say) is newly recorded from both New Brunswick and Nova Scotia. The bionomics of the genus, species of host bees, developmental history, and the status of the group in the region are all briefly discussed. The Ripiphoridae are a remarkable family of beetles which are endoand ectoparasites of insects. Falin (2002) provided a comprehensive account of the family in North America. Knowledge of ripiphorid biology is derived primarily from the studies of three species: Ripidius quadriceps Abeille, 1872, Pelecotoma fennica (Paykull 1799), and Ripiphorus smithi Linsley & MacSwain, 1950 (Falin 2002). Species in the genus Ripidius Thunberg are parasitic on roaches (Orthoptera: Blattidae) (Besuchet 1956); those in the genus Pelecotoma Fischer are parasites on beetles of the genus Ptilinus Mueller (Anobiidae) (Svácha 1994); and species in the genus Macrosiagon Hentz parasitize a wide variety of aculeate Hymenoptera in the families Vespidae, Crabronidae, Sphecidae, Scoliidae, Tiphiidae, Apidae, and Halictidae (Falin 2002). Svácha (1994) speculates that the ancestral mode of life of ripiphorids was as xylophilous species predaceous on larval Coleoptera. Linsley et al. (1952) examined the biology of Ripiphorus smithi, a pattern presumed to be representative of the genus. Females emerge in the summer and after mating deposit between 6 and 15 eggs into the bud of an unopened flower (dissected females have 850+ eggs). Hatching is synchronized with the opening of the flowers and the visitation of bees. The first instar larva (triungulin) is very The Coleopterists Bulletin, 60(4):299–303. 2006.

A New Species of Actium Casey (Staphylinidae: Pselaphinae) Endemic to Santa Catalina Island, California

ABSTRACT Actium vestigialis Caterino and Chandler, new species, from Santa Catalina Island, California, is described. This new species is brachypterous, has strongly reduced eyes, and is only known to occur on this one island. The leaf litter fauna of Californias Channel Islands is inadequately examined, and this discovery may indicate a significant fauna of endemic litter-associated insects.

New Pselaphidae From New Hampshire (Coleoptera)

Two species of undescribed Pselaphidae were discovered during a comparison of the fauna of an uncut and a 40 year-old forest. The species are described here to provide names for a forthcoming paper comparing the pselaphid fauna of these two sites. Holotypes were cleared, disarticulated, and mounted on slides in Canada Balsam. Both are placed in the Field Museum of Natural History, Chicago. All measurements of specimens are in millimeters. I would like to thank certain individuals for the loan of specimens, greatly extending the known ranges of these two new species. The abbreviations used to indicate specimen deposition follows the individual’s affiliation: Rickard Baranowski, Lund University, Sweden (RBC); J. Milton Campbell, Biosystematics Research Institute, Ottawa, Canada (CNCI); Michael A. Ivie, Montana State University, Bozeman (DZEC); and Alfred F. Newton, Jr., Field Museum of Natural History, Chicago (FMNH). Specimens otherwise lacking an indication of deposition are in the collections of the author and the University of New Hampshire. I would like to thank J. F. Burger and R. Marcel Reeves, University of New Hampshire, for reviewing the manuscript.

A Revision of the Eastern Nearctic Genus Custotychus Park and Wagner, 1962 (Coleoptera: Staphylinidae: Pselaphinae)

Abstract The eastern Nearctic pselaphine genus Custotychus Park and Wagner consisting of 14 species is revised, with ten new species being proposed: C. carloritaorum Chandler and Geromini new species, C. cavei Chandler and Geromini new species, C. chickasaw Chandler and Geromini new species, C. leei Chandler and Geromini new species, C. lobatus Chandler and Geromini new species, C. natchez Chandler and Geromini new species, C. rothorum Chandler and Geromini new species, C. spinosus Chandler and Geromini new species, C. turnbowi Chandler and Geromini new species, and C. watrousi Chandler and Geromini new species. Tychus spiculifer Casey is placed as a junior synonym of T. verticalis Casey, new synonymy. A diagnostic key and figures are provided for identification of the species.

A revision of the Nearctic species of Brachygluta Thomson, 1859 (Coleoptera: Staphylinidae: Pselaphinae).

The North American species of Brachygluta Thomson, 1859 are revised, treating a total of 29 species. Six names are placed as junior synonyms: Bryaxis perpunctata Brendel, 1890 (=B. luniger LeConte, 1849), B. labyrinthea Casey, 1894 (=B. intermedia Brendel, 1866), B. loripes Casey, 1894 and B. jacobina Casey, 1908 (=B. foveata LeConte, 1851), B. arizonae Casey, 1887 (=B. texana Casey, 1886), and B. intricata Casey, 1894 (=B. terebrata Casey, 1894). Twelve new Brachygluta species are described: B. chisos Sabella (USA), B. cochimi Bückle (Mexico), B. eldredgei Chandler (USA), B. kiowa Sabella (USA), B. klamath Bückle (USA), B. lareaui Chandler (USA), B. mayo Sabella (Mexico), B. miccosukee Bückle (USA), B. seri Chandler (Mexico), B. shawnee Chandler (USA), B. tamaulipec Sabella (Mexico and USA), and B. wickhami Bückle (USA). Problems with the identities of the following three species based on missing types are discussed: Bryaxis abdominalis Aubé, 1833; Bryaxis curvicera Motschulsky, 1854; and Pselaphus dentatus Say, 1824, with a Neotype being designated for P. dentatus. Nisa Casey, 1886 is removed from synonymy of Brachygluta and reinstituted as a subgenus. A key to the males is provided, nine species-groups are formed and defined, all species are characterized, distributions are detailed, and habitat/collecting data are summarized. Lectotypes are designated for Bryaxis arguta Casey, Bryaxis belfragei LeConte, Bryaxis foveata LeConte, Bryaxis infinita Casey, Brachygluta jacobina Casey, and Brachygluta mormon Bowman.

Further Notes on the New World Pselaphinae (Coleoptera: Staphylinidae) Described by Victor Motschulsky

ABSTRACT Syntypes are documented for some species of Pselaphinae found in the Zoological Institute of St. Petersburg and described by V. I. Motschulsky from Panama and the United States: Trichonyx aequinoctialis Motschulsky (now in Anarmodius Raffray), Eupsenius dilatatus Motschulsky, Bryaxis consanguinea Motschulsky (now in Decarthron Brendel), Goniacerus gibbus Motschulsky, Euplectus tropicalis Motschulsky (now in Panaramecia Park), and Bryaxis pruinosa Motschulsky (now in Reichenhachia Leach). Problems with names associated with Arthmius vividus (Motschulsky) and the generic concepts of Circocerus Motschulsky, Upoluna Schaufuss, and Apharus Reitter are resolved. Batrisus vividus Schaufuss and Batrisus rivularis Motschulsky are placed as junior synonyms of Batrisus vividus Motschulsky (new synonymies); the junior homonym Batrisus rivularis Schaufuss (not Motschulsky) is replaced by the available name Oxarthrius escharus Park (new synonymy). Apharus is placed as a junior synonym of Circocerus (new synonymy), and Upoluna is removed from synonymy with Circocerus (new status) to hold Circocerus batrisioides (new combination). Difficulty in separation of Upoluna from the nominate subgenus of Hamotus is discussed.

A taxonomic revision of the New World genus Oropodes Casey (Coleoptera, Staphylinidae, Pselaphinae)

Abstract The genus Oropodes is characterized and revised with 18 species being treated. Members of this genus are found in temperate forests to desert brush lands from Oregon to Baja California, but are associated primarily with dry forests and shrub lands of California. Keys to males and females, where known, are provided. Seven species are redescribed: Oropodes arcaps (California), Oropodes dybasi (Oregon), Oropodes ishii (California), Oropodes nuclere (California), Oropodes orbiceps (California), Oropodes rumseyensis (California), Oropodes yollabolly (California). The name Oropodes raffrayi (California) is raised from synonymy and the species is redescribed, NEW STATUS. Ten new species are described: Oropodes aalbui (California), Oropodes bellorum (California), Oropodes casson (California), Oropodes chumash (California), Oropodes esselen (California), Oropodes hardyi (California), Oropodes serrano (California), Oropodes tataviam (California), Oropodes tongva (California), and Oropodes tipai (Baja California, Mexico), NEW SPECIES. These species are placed into three species groups: the arcaps-group, the orbiceps-group, and the raffrayi-group. Data for a new record of Euplecterga fideli are given, and a list of the unassociated Oropodes females with distinctive genitalia is included with their label data.

Notes on the Cave-Associated Pselaphinae (Staphylinidae) of Indiana

Abstract The cave-associated Pselaphinae of Indiana are listed with their collection data, and a key is provided to the species of Batrisini. Batrisodes krekeleri Park 1960 is placed as a junior synonym of B. hairstoni Park 1947, and both sexes are redescribed. This uncommonly collected species has been taken only at cave entrances in southeastern Indiana, and its ecology is briefly discussed.