MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 307 



1. SCOFOBIUM ANTHRACINUM (Cameron) 



Ophioniedan anthraeimim Cameron, 1913b, p. 344.— Leng and Mutciil!':e, 1917, 



p. 198.— SCHEEEPELTZ, 1933, p. 1247.— BiACKWEi.DER, 1939a, pp. 107, 121. 

 Medon anthracinum (Cameron) Blackweldek, 1939a, p. 107. 

 Scopobium anthracinnm (Cameron) Blackweldee, 1939a, pp. 107, 121. 



Description. — Piceorufous. Head quadrate, not narrowed behind; 

 eyes at nearly twice their length from base ; with very dense lunbilicate 

 punctures ; labrura with a la rge semicircular emargination. Pronotivm 

 as broad as long, scarcely narrowed posteriorly, the basal angles some- 

 what rounded; with a distinct impressed midline posteriorly; with 

 dense umbilicate punctures a little smaller than those on head. Elytra 

 two-sevenths wider than long, longer than pronotum ; with moderately 

 coarse punctures separated by less than their diameter; intervals with 

 very vague traces of ground sculpture. Ahdomen with each segment 

 strongly impressed at base ; v/ith fine but feeble submuricate punctures 

 and traces of gi'ound sculpture. Male, seventh sternite with a semi- 

 circular emargination bordered by two ridges which form curved 

 gpatulate processes projecting posteriorly ; eighth sternite with a deep 

 emargination parallel-sided near apex and about as broad posteriorly 

 as long. Female, seventh sternite with a median sinuation; eighth 

 sternite rounded. Length, 6 mm. 



Type locality. — Grenada, Chantilly Estate. 



Types. — In the British Museum. 



Records. — The following are the records known to me : 



Bt. liucia: (Blackwelder station 209A). 



St. Vincent: (Cameron, 1913; I^ng and Mutchler, 1917; British Museum). 



Grenada: (British Museum). 



Specimens examined. — I have seen four examples in the British 

 Museum and one collected by me in March 1936. 



Remarks. — This is a very distinct species, which I made the type of 

 a new genus in a previous paper on the Paederini. It can be recog- 

 nized readily by the large semicircular emargination of the labrum. 



My example was taken from under stones along a stream. 



XLII. Genus LATHROBIUM Gravenhorst 



L'lthrohium Gkamcnhokst, 1S02, p. 51. 

 LatroUum Dahl, 1823, p. 16 (misspelling). 

 Lathobium LeConte, 1859, p. 572 (misspelling). 

 Centrocnemia Joseph, 1868, p. 365. 

 Subgenus Tfrfartopeus Czwatjna, 1888, p. 349. 

 Subgenus L"fhrobiiim s. str. 



Lfitolathra Cabey, 1905. p. 71. 

 Subgenus Lafhrolepfa Casey, 1905, p. 72. 

 Subgenus Diratopeus Casey, 1905, p. 73. 

 Subgenus Abletobivm Casey, 1905, p. 70. 

 Subgenus Apteralium Casey, 1905, p. 70. 

 Subgenus Lathrobiopsis Casey, 1905, p. 72. 

 Subgenus Lothrobioma Casey, 1905, p. 72. 



