MONOGRAPH OF WEST INDIAN STAPHYLIN^DAE 105 



X. Genus THINOBIUS Kiesenwetter 



Thinohius Kiesenwetteb, 1SS4, p. 355. 



Subgenus ThmohicUus Bernhaueb, 1909b, p. 198. 



Subgenus Thiphonilus Tottenham, 1939, p. 225. 



Thinophilus Mulsant and Rey, 1879, p. 322. (Not Wahlberg, 1844.) 



Genotypes. — Thinohius ciliatus Kiesenwetter (monobasic). Of 

 lliinophilus and Thiphonilus, Thinohius linearis 'K.v^aiz— Thinohius 

 {Thinophilus, Thiphonilus) lineaHs Kraatz (designated by Totten- 

 ham, 1939) ; of Thinohiellus, Thinohius {Thinohiellus) rossicus Bern- 

 liaiier (monobasic). 



Diagnosis. — Head more or less cylindrical; hypostomal suture 

 usually visible; without ocelli; antennae 11-segmented, inserted at 

 sides of clypeus near eyes; labrum transverse; fourth segment of 

 maxillary palpus subulate; gular sutures united in front; pronotum 

 not sulcate, without lobes behind coxae; anterior coxal cavities 

 broadly open behind, confluent; front coxae conical, prominent; 

 scutellum visible; inner apex of elytra rounded; middle coxal cavities 

 confluent ; posterior coxae not expanded laterally ; abdomen margined, 

 first stemite absent: tibiae not spinose or dentate; tarsi 2-segmented. 



Remarks. — This genus is very inadequately known throughout the 

 New World. Ten species have been described from the West Indies, 

 but 6 of these appear to me to be synonyms of the other 4. Sr. Bierig 

 has described 5 species from Cuba. Of these he kindly deposited 

 "cotypes" in the United States National Museum of fiavifer., morio, 

 nehulosus, and cuhensis. On the basis of these examples and the 

 original descriptions I believe all these to be synonyms of Dr. Cam- 

 eron's species ornatus and opaculus. And piceus of Cameron I be- 

 lieve is the same as nitidulus Bernhauer. The 10 species are 

 therefore reduced to 4, and 2 others are proj^osed as new. 



I have seen type material of all the names except tenehrophilus 

 Bierig, and, altogether, 64 examples from the West Indies. 



KEY TO WEST mDIAN SPECIES OF TmNOBIUS 



1. Apical fourth of elytra testaceous or luteous 1. ornatus 



Elytra unicolorous 2 



2. Pronotum nearly semicircular 3 



Pronotum subquadrate 5 



3. Elytra very densely and minutely sculptured 4 



Elytra not sculptured but with dense punctures 4. jamaicensis 



4. Pronotum and base of abdomen testaceous 3. miricornis 



Pronotum, elytra, and abdomen concolorous 2. opaculus 



5. Pronotum one-half to one-fourth broader than long G. nitidulus 



Pronotum one-seventh or less broader than long 5. exasperatus 



1. THINOBIUS ORNATUS Cumeron 



Tliinnlnus (s. str.) ornatus Cameron, 1923, p. 397. — Scheebpeltz, 1933. p. 1127. 

 Thinohius (Thinophilus) tcnehrophihis Bikiuq, 1031e, p. 215, pi. 11, fig. 4. 

 Thinohius (.Thinophilus) flavifer Bikrio, 1934e, p. 21G. 

 449008 — 42 8 



