New Synonymies and Combinations for New World Pselaphinae (Coleoptera: Staphylinidae)

The following new synonymies and new combinations for Pselaphinae of North and Central America are documented: Anarmodius aequinoctialis (Motschulsky) (Trichonyx), New Comb.; Anthylarthron cornutum (Brendel) (= Anthylarthron curtipenne Casey, New Syn.); Aporhexius robustus (Motschulsky) (Euplectus), New Comb.; Batrisodespunctlfrons Casey (= Batrisodes appalachianus Casey, New Syn.); Batrisodes ionae (LeConte) (= Batrisodes caseyt Blatchley, New Syn.); Batrisodes clypeonotus (Brendel) (= Batrisodes kahli Bowman, New Syn.); Batrisodes lineaticollis (Aube) (= Batrisus globosus LeConte, New Syn.); Brachygluta corniventris (Motschulsky) (Bryaxts), New Comb., (= Bryaxts illinoiensis Brendel, New Syn.); Cedius ziegleri LeConte (= Cedius robustus Casey, New Syn.); Conoplectus simplex (Motschulsky) (Rhexius), New Comb., jun. syn. of Conoplectus canaliculatus (LeConte), New Syn.; Ctenisodes Raffray (= Pilopius Casey, New Syn.); Cylindrarctus ludovicianus (Brendel) (= Cylindrarctus comes Casey, New Syn.; Dalmosanus Park (= Pygmactium Grigarick and Schuster, New Syn.); Decarthron consanguineum (Motschulsky) (Bryaxis), New Comb.; Decarthron formiceti (LeConte) (= Decarthron rayi Park, = Decarthron seriepunctatum Brendel, New Syns.); Decarthron velutinum (LeConte), New Status (= "D. formiceti," Park, 1958); Decarthron marinum Brendel (= Decarthron diversum Park, New Syn.); Decarthron robustum (Motschulsky) (Metaxis), New Comb.; Euphalepsus Reitter (= Barada Raffray, = Tetrasemus Jeannel, New Syns.), in subtribe Baradina; Eupsentus dilatatus Motschulsky (= Eupsenius rufus LeConte, New Syn.); Eurhexius canaliculatus (Motschulsky) (Trichonyx), New Comb. (= Eurhexius zonalis Park, New Syn.); Harmophola adusta (Motschulsky) (Euplectus), New Comb.; Iteticus cylindricus (Motschulsky) (Batrisus), New Comb.; Nisaxis Casey (=Dranisaxa Park, New Syn.); Oropus strtatus (LeConte) (=Oropus keeni Casey and O. brevipennis Casey, New Syns.); Panaramecia tropicalis (Motschulsky) (Euplectus), New Comb. (= Panaramecia zvilliamsi Park, New Syn.); Phamisus Aube, (= Canthoderus Motschulsky, New Syn.); Pselaptus oedipus (Sharp) (Bryaxis, Cryptorhinula), New Comb.; Pselaphus bellax Casey (= Pselaphus ulkei Bowman, New Syn); Reichenbachia intacta (Sharp) (= Bryaxis sarcinaria Schaufuss, New Syn.); Reichenbachia pruinosa (Motschulsky) (Bryaxis), New Comb., (= Bryaxis macrura Motschulsky, = Reichenbachia bterigi Park, New Syns.); Reichenbachia rubricunda (Aube) (= Bryaxis gemmifer LeConte, New Syn.); Trimicerus Motschulsky, (= Batrybraxis Reitter, New Syn.); Trimicerus corn?gera (Motschulsky) (Bryaxis), New Comb. (= Batrybraxis panamensis Park, New Syn.); Trimicerus pacificus Motschulsky (= Batrybraxis bowmani Park, New Syn.); Trimiomelba dubia (LeConte) (= Trimium americanum Motschulsky, = Trimium Scientific Contribution Number 2000 of the New Hampshire Agricultural Experiment Station. This content downloaded from 132.177.228.65 on Wed, 4 Feb 2015 14:56:42 PM All use subject to JSTOR Terms and Conditions 164 NEW WORLD PSELAPHINAE convexulum LeConte, = Trimiomelba laevis Casey, New Syns.); Tyrus humeralis (Aube) (= Tyrus consimilis Casey, New Syn.); Tyrus semiruber Casey (= "Tyrus humeralis" of authors); Tyrus cortidnus Casey (= Tyrus carinifer Casey, New Syn.); Xybarida trimioides (Sharp) (Bryaxis, Cryptorhinula), New Comb. Lectotype designations: Batrisus ionae LeConte; Batrisus globosus LeConte; Bryaxis consangu?nea Motschulsky; Bryaxis corniventris Motschulsky; Bryaxis pruinosa Motschulsky; Metaxis robusta Motschulsky; Rhextus simplex Motschulsky; Trimium americanum LeConte; Tyrus consimilis Casey. New species and genera: Cylindrarctus semin?le Chandler, New Species (= "Cylindrarctus comes," Chandler, 1988); Motschtyrus pilosus (Motschulsky) (Tychus), Panama, New Genus, New Comb. While working on projects for the last few years, I have visited and borrowed material from the more important North American and European collections of Pselaphinae. Through this I have examined almost all the types of North American Pselaphinae and a good number of those from Mexico and Central America. A number of synonymies and generic misplacements were discovered relevant to my work on faunal analyses in New Hampshire, the recent North American catalog of the Pselaphidae (Chandler, 1997), and a project characterizing the genera of Mexico. These have not yet been pub lished because they were noted while papers were in press, or after papers were published, or are necessary to address problems relevant to projects in progress. The types of Victor de Motschulsky from Panama and the eastern United States have been particularly problematic due to their previous lack of availability. Motschulsky mentioned many names in three letters to Ms. M?n?tri?s in St. Petersburg (Motschulsky 1854, 1855, 1856), and provided brief comparative notes on many of these. The names that have comparative statements, no matter how brief, have been accepted as valid descriptions. Almost none of these names have been applied since their description, but recently the genera have been listed (Newton and Chandler, 1989) and the Panamanian (Chandler, 1992a) or North American species catalogued (Chandler, 1997). His names are of particular interest because they are often placed in genera that do not occur in the New World, and so are obviously misplaced. All but three of Motschulsky's North American and Panamanian types have been found and borrowed from the Moscow State Univer sity Collection. The missing types also are not present in St. Peters burg or Helsinki, and are believed to be lost or destroyed. They are: Euplectus antennatus, Euplectus cordicollis (close to Lithocharisl, fide Motschulsky 1855:16; may be a non-pselaphine staphylinid), both from Obispo, Panama, and Bryaxis curvicera Motschulsky (1854) from New York City. This last species is a member of Brachygluta, and is clearly a male from the description, being either B. Inniger (LeConte) or B. cavicornis (Brendel). Both occur in salt marshes near New York City, but a more precise placement cannot be made without the type. This paper presents the changes in generic placement and new synonymies that I have seen. In most cases, I made extensive notes on the types and the type label data and have labeled specimens in my This content downloaded from 132.177.228.65 on Wed, 4 Feb 2015 14:56:42 PM All use subject to JSTOR Terms and Conditions DONALD S. CHANDLER 165 collection as "compared with type" when possible, or simply have specimens that I compared favorably with the types but did not copy down the type data. I have designated lectotypes for those taxa where I consider it critical that the name be associated with a male or a definitive specimen, or where there are more than two species present in the syntype series. Anarmodius aequinoctialis (Motschulsky, 1855) new comb. The two syntypes of Trichonyx aequinoctialis Motschulsky (1855) were examined, and are here transferred to the genus Anarmodius Raff ray. Type data: //[small light green square]/Obispo [light green paper] / Trichonyx aequinoctialis Motch. Panama [dark green paper] / / [ZMUM]. Anthylarthron cornutum (Brendel, 1865) The lectotype of Decarthron cornutum Brendel (1865a) was recently fixed (Chandler, 1994), with a male from Illinois being chosen. This allows the following synonymy to be finally formalized. Casey (1897) described Anthylarthron curtipenne from Iowa, based on a male holo type. The types of the two taxa are clearly conspecific, sharing the unique features of the male vertex. NEW SYNONYMY. Type data: / / Iowa/ Casey bequest 1925/ Type USNM 3873/ curtipenne//