STAPHYLINID.E 211 



which in demissa are at only about one-half more than their own 

 length from the base, relatively narrower head, larger, less transverse 

 prothorax and closer punctulation. 



The name Oligurota pusio was given by the writer (Ann. N. Y. 

 Acad., VII, p. 361) to a species with slightly shorter and more trans- 

 verse head, larger eyes than usual and shorter elytra, the suture 

 being barely as long as the prothorax; in all other characters it is, 

 however, homologous with Thecturota and it should therefore be 

 united with the latter. Oligurota might possibly be held to be a 

 subgenus, but apparently is not of any greater value. 



Subgenus Hemithecta nov. 



The very distinct species described under this name is regarded 

 as subgeneric to Thecturota, principally because of its general re- 

 semblance in many points; it differs however very greatly. The 

 antennae are still shorter and more incrassate, the eyes still much 

 smaller and not at all convex but flat and more finely faceted; 

 there is no trace of the characteristic transverse occipital fossa of 

 Thecturota and the abdomen is quite different, for, instead of four 

 rather fine but distinct basal impressions, we have here the first 

 tergite very broadly and feebly impressed, the second broadly and 

 only just visibly and the others unimpressed so far as observable; 

 the fifth tergite, also, is very much longer. All the other structural 

 characters, however, except sculpture, seem to be virtually the same 

 as in Thecturota. The type is the following: 



Thecturota (Hemithecta) ruficollis n. sp. Minute, slender, parallel, 

 moderately convex, subalutaceous, the abdomen more shining, blackish- 

 piceous in color, the head slightly, the prothorax much, paler and ru- 

 fescent, the legs pale; pubescence short but rather bristling, inconspic- 

 uous; punctures of the head fine, close, not parted along the median 

 line as they are in Thecturota, of the pronotum fine and rather close, of 

 the abdomen fine, somewhat numerous and asperulate basally, very 

 remote posteriorly, the tip with a few minute and sparse asperities; 

 head gradually broader basally and with arcuate sides, as long as wide 

 and about as wide as the prothorax, the minute sculpture rather stronger 

 then elsewhere, the front convex, scarcely at all impressed; antennae 

 pale piceous, short, nearly as in Thecturota, gradually strongly incrassate, 

 the first joint evidently though only moderately longer than the second, 

 the latter as long as the next two, fourth transverse, tenth more than 

 twice as wide as long, the last sharply ogival and longer than the two 

 preceding; prothorax but slightly wider than long, subparallel, the sides 



