MONOGRAPH OF WEST 1NDL\N STAPHYLINIDAE 331 



original descriptions and a series from various parts of Cuba, lead me 

 to believe that the two species cannot be distinguished. The relative 

 widths of the pronotum and elytra, as recorded, do not apply to these 

 "cotypes," and the remaining characters appear to me to be of very 

 much less than specific importance when we take into consideration 

 the variation found throughout this genus. 



In addition to the male characters this species differs from aJhlpes in 

 the presence of ground sculpture on the pronotum and in other details. 



The species is recorded from the edge of ^^ ater, beneath stones and 

 decaying plant debris. 



XLVI. Genus OCHTHSPHILUM Stephens 



OvhihvphUum S'lEPHKNiS, 1829, p. 287. (Not OehthephUus Mulsaut and Iley, 1806.) 



Cryptohium Mankerheim, 1830, p. 38. 



Oohlcphilinn Stephens, 1832, p. 200 (misspelling). 



Octhcjihihum LacokdAire, 18.54, p. 89 (misspelling). 



Octephihim Beenhaiteb and Schxtbert, 1911, p. 92 (misspelling). 



Subgenus Ahahactvs Sharp, 1885, p. 533. 



Subgenus Cryptobiclla Casey, 1905, p. 29. 



Subgf^nus Asicnohium Bebnhaxjer, 1911, p. 411. 



Subgenus Neobactus Blackweldeb, 1939a, p. 96. 



Genotypes. — Paederus fracticomis 'P-dykull^ Ochthephilv/nh fracti- 

 coriie (Paykull) (monobasic). Oi Ci'yptoh'mm.i Paederus fracticornis 

 VfiyXiwW^^ Cry pt oh ium- fracticorne (Paykull) (monobasic) ; of Aha- 

 hactus^ A. depressus Sharp (designated by Biackwelder, 1939) ; of 

 Cryptohiella., C. colanica Casey (original designation; the designation 

 of C. rostratimi Sharp by Bierig, 1935, is not valid) ; of Astenohkow., 

 A. excellens Bernhauer (monobasic) ; of A'eohacfU'S, Cryptohium {Neo- 

 bactus) nn/7}£7iiiiacherl Biackwelder (monobasic and original desig- 

 nation). 



Diagnosis. — Body moderately elongate, not distinctly parallel; in- 

 teguments strongly punctate, often without ground sculpture ; antennae 

 anteriorly flexile, strongly geniculate, basal segment much elongate ; 

 labrum bidenticulate ; fourth segment of maxillary palpus subulate; 

 gular sutures separate; neck more than one-fourth as Vvude as head; 

 prosternum not dilated beneath the coxae ; hypomera feebly lobed be- 

 liind the coxae ; anterior coxal cavities open behind ; front coxae large, 

 exserted; elytra without pleural fold; middle coxal cavities confluent; 

 posterior coxae contiguous, "conical"; first and second abdominal 

 sternites absent, third carinate at base; fourth and fifth stcrnites of 

 male not modified; basal half of anterior tibiae without diagonal 

 ctenidia; apex of posterior tibia with a ctenidium on each side. 



Remarks. — This genus was restricted by Casey to the small European 

 species. It is apparent from a study of the genotypes of this and 

 Casey's new genera that they are not all of the same value. Cryptohium 



