British Species of Homalota . 95 



very finely and closely punctured with a central longitu- 

 dinal channel, beginning at an obscure impression in 

 front of the scutellum, and not reaching to the front of 

 the thorax. Elytra one-third longer, and nearly one- 

 third broader than the thorax, their length about equal 

 to their breadth, closely and very finely punctured. Ab- 

 domen with segments 2-5 above distinctly and tolerably 

 densely punctured, sixth smooth and shining. Legs dirty 

 yellow. 



The male has on the upper surface of the sixth seg- 

 ment of the abdomen, a large, pointed, keel-like, tubercle 

 before the apex ; the hind margin of the seventh segment 

 is furnished with four, small, distinct teeth, two placed 

 very near one another in the middle, and one at each 

 side ; between the middle ones and the external ones the 

 margin is very obsoletely crenulate ; the under plate of 

 the seventh segment is also narrower, and more pro- 

 longed behind than in the female. 



A fine and very distinct species, not likely to be con- 

 founded with any other. H. hyyrotopora is somewhat 

 similar in appearance, but has shorter and stouter an- 

 tennas, and the thorax scarcely narrowed behind. 



Found not uncommonly on the banks of rivers and 

 streams in the North of England and Scotland. 



There are specimens of H. currax in the British Museum, 

 sent by Dr. Kraatz ; they agree entirely with our British 

 ones. 



2. Homalota languida. 



Subdepressa, nigro-fusca, dense subtilissime punctata, 

 antennis abdominisque segmentorum marginibus rufo- 

 fuscis, antennarum basi pedibusque flavis ; antennis 

 elongatis, apicem versus lenissime incrassatis ; thorace 

 subquadrato, basin versus vix angustato; elytris hoc 

 longioribus ; abdcmine supra segmentis 2-5 subtiliter 

 confertissime puiictatis, sexto laeviusculo. Long. l|-2 lin. 



Mas J abdomine segmento sexto supra in medio tuber- 

 culo acuto, 7° apice denticulis 6, 4 intermediis approxi- 

 matis, instructo ; segmento 7° ventrali apice medio ob- 

 tuse angulato. 



H. languida, Er. Kaf. Brand, i. 318 ; Gen. et Spec. 

 Staph. 86 ; Kr. Ins. Deutsch. ii. 213; Disopora languida, 

 Th. Sk. Col. iii. 58. 



