444 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



fossor Scopoli = Parahemus fossar (Scopoli) (monobasic) ; of Chito- 

 compsus, StaphyUmts polyphemiis 'BQn'\\\diy\Q.v=Chitocompsus poly- 

 phemus (Bernliaiier) (monobasic) ; of Euryolinus^ Staphylimis serm- 

 cyaneus 'Rernha\\er=KwyoUmis semicyaneus (Bernhauer) (mono- 

 basic) ; of Nesiolinus^ StaphyUnus hakeri Bernhauer =i\^eseo/mw5 'ba- 

 keri (Bernhauer) (designated here) ; of PlesioUnus, StaphyUnus cos- 

 taricensis Bernlmuer = Plesiolinus costaricerisis (Bernhauer) (desig- 

 nated here) ; of Ghaetodracus^ StaphyUnus patridus Bernhauer = 

 Ghaetodracus patridus (Bernhauer) (monobasic) ; of ApostenoUnus, 

 StaphyUnus {ApostenoUnus) canniceps Bernhauer (monobasic). 



Diagnosis. — Head and pronotum with dense umbilicate punctures, 

 usually feebly margined beneath the eyes; antennae widely sepa- 

 rated at front of head, outer segments densely pubescent from the 

 fourth joint; labrum strongly bilobed; palpi moderately elongate, 

 fourth segment of maxillary much longer than third, labial similar 

 to maxillary; gular sutures separate throughout; lateral margin of 

 pronotum double, the lines united, side piece inflexed ; anterior coxal 

 cavities entirely open behind; front coxae large, exserted; posterior 

 coxae contiguous, "triangular"; first and second abdominal sternites 

 absent, except possibly for a remnant of the second at sides; inter- 

 segmental membranes of abdomen with a pattern of irregular 

 rounded sclerotized areas arranged in longitudinal bands; femora 

 unarmed. 



Remarks. — Tn the Bernhauer and Schubert Catalog the genera 

 StaphyUnus and Ocypus are more or less united, with each group 

 containing several subgenera. The characters that distinguish the 

 two appear to be of generic value, and I am therefore omitting 

 Ocypus and its subgenera from StaphyUnus. Inasmuch as these 

 names are somewhat mixed in the Catalog, I list below the names 

 that have been coupled with StaphyUnus but that are not herein 

 placed in that genus. 



Gemis Ocypus Samoueixe, 1819, p. 172. 



Anodiis NORDMANN, 1836, p. 11. (Not Spix, 1829.) 

 Ocys CuBTis, 1839, p. 758 (misspelling). 

 Acypus Erichson, 18.39a. p. 444 (misspelling). 

 Alapsodus Tottenham, 1939, p. 226 (as new name for Anodus). 

 Subgenus Oorrivs Stephens, 1829, p. 275. 



Rayachcila Motschulsky, 1845, p. 40 (typographical error). 

 Raga<;hGila Mannekheim, 1846, p. 226 (misspelling). 

 RhagachcUa Mannekheim, 1S46, p. 226 (misspelling). 

 Rhagochila Motschulsky, 18.58, p. 668. 

 Matidus Motschulsky, lS60a, p. 569. 

 Subgenus Tasgins Stephens, 1829, p. 276. 

 Subgenus Pseudocypus Muesant and Rey, 1S75, p. 291. 

 Subgenus Parocypus Bernhauek, 1915f, p. 52. 

 Subgenus Protocypus Muixer, 1923, p. 136. 



