204 Dr. Sharp's Revision of the 



abdomine supra segmentis 2-4 subtiliter sat crebre punc- 

 tatis, 5 et 6 fere Igevigatis. Long. Ij lin. 



3Ias; abdomine segmento 7° dorsali apicem versus 

 utrinque linea longitudinali elevata, margine apicali 

 medio profunde semicirculariter excise, excisionis mar- 

 gine evidenter incrassato. 



Aleochara nigritula, Gyll. Ins. Suec. ii. 408; Atheta 

 nigrihola^ Tb. Sk. Col. iii. 80. H. liturata, Wat. Cat. 



Antennae rather short and stout, yellow; joints two 

 and three of about equal length, four to ten short, the 

 first of them rather, the last of them very transverse, 

 five a good deal broader than four; eleventh joint com- 

 paratively long, quite as long as the two preceding to- 

 gether. The head is narrower than the thorax, black, 

 dull, narrower behind the eyes, which are rather promi- 

 nent, finely and indistinctly punctured ; palpi yellow. 

 Thorax nearly as broad as the elytra, strongly transverse, 

 twice as broad as long, pitchy or pitchy-red, finely and 

 rather closely punctured, sometimes with an indistinct 

 longitudinal channel. Elytra pale yellow, sometimes a 

 little darker about the scutellum, about half as long again 

 as the thorax, finely and densely punctured. Abdomen 

 pitchy-black, segments two to four finely but not very 

 closely punctured, fifth and sixth segments almost im- 

 punctate. Legs pale yellow. 



The male has, in the middle of the hind margin of the 

 dorsal plate of the seventh abdominal segment, a deep 

 semicircular incision, the margin of which is thickened 

 all the way round ; outside this on each side is a thick- 

 ened raised line terminating in a slight projection at 

 each outer angle. 



Taken in abundance in fungi in the Fens, Cambridge, 

 by Mr. Crotch. 



Ohs. — The smaller size, pale antennae with shorter 

 joints, &c., distinguish this species from H. holetohia, 

 with which it appears to have been confounded by 

 KJraatz. It might almost be naturally placed in the next 

 section. 



97. Homalota coriaria. 



Nigra, nitida, elytris fuscis, antennarum basi pedibns- 

 que obscure testaceis ; thorace fortiter transverse ; abdo- 



