134 Dr. Sharp's Revision of the 



Aleochara vicina, Steph. HI. Brit. Ent. v. 116; H. vi- 

 cina, Wat. Cat. H. umbonata, Er. Gen. et Spec. Staph. 

 82; Kr. Ins. Deutsch. ii. 209; Liogluta umbonata, Th. 

 Sk. Col. iii. 56. 



This species is remarkable by the small tubercle at the 

 base of the second segment of the abdomen. The an- 

 tennae are black, rather stout, a little thickened towards 

 the apex; joints two and three rather long, of about equal 

 length, four to ten differing but little in length, the first 

 of them longer than broad, the last of them scarcely so 

 long as broad ; eleventh about twice as long as the tenth. 

 Head black and shining, much narrower than the thorax, 

 a little narrowed behind the eyes, which are rather large 

 and prominent, with an indistinct impression behind the 

 insertion of the antennte, so that the middle part of the 

 head in front appears raised ; sides sparingly and finely 

 punctured, the middle black, shining and impunctate. 

 Thorax a little narrower than the elytra, not narrowed 

 behind ; about a third broader than long, finely but rather 

 sparingly punctured, with an impression in front of the 

 base in the middle. The elytra are a third longer than 

 the thorax, of a blackish colour at the base and edges, 

 the middle of a lurid testaceous, finely and pretty closely 

 punctured. The abdomen is black and shining, the basal 

 segments very sparingly punctured, the apical ones im- 

 punctate ; the second segment has in the middle a small 

 tubercle, very indistinct in the female. The legs are 

 pitchy testaceous, the thighs always darker than the tibiee. 



The male has the abdominal tubercle on the second 

 segment larger than in the female. The dorsal plate of 

 the seventh segment is sprinkled with small tubercles, 

 and its hind margin projects a Httle in the middle. 



In the female, the under plate of the seventh segment 

 is broader and shorter than in the male, and has its hind 

 margin broadly but obsoletely emarginate. 



Abundant all over the country. 



This species is distinguished by its dark black colour, 

 and the lighter disc of the elytra ; in this respect JBT. trian- 

 gulum somewhat resembles it, but that species is not so 

 shining, and is without any tubercle on the second seg- 

 ment of the abdomen. 



Ohs. — As Stephen^s description of Aleochara vicina is 

 pretty clearly recognizable as this species, and is anterior 

 to Erichson's tmihonata, I have adopted his name. 



