36 



DESCEIPTIONS OF THE BRITISH SPECIES OP STENUS. 

 BY E. C. KTE. 

 {Continued from page 11). 

 b. elytra unspotted. 



i. legs black. 



JuKO, Fab., Erichson. 2^ lin. Black, rather opaque. Palpi tes- 

 taceous yellow, the apical joint entirely, and the apex of the second, 

 pitchy. Head with two grooves. Thorax rather strongly and closely 

 punctured, with an obsolete dorsal channel. Elytra more strongly 

 punctured, the interstices presenting an irregular and rough " engine- 

 turned " appearance. Abdomen with the short middle keels as in the 

 last species. In the male the femora, especially the hinder pair, are very 

 broad and slightly curved ; the tibiae also are slightly curved and termi- 

 nate in a short spur. Beneath there is a thick tuft of yellow hair 

 between the middle coxse, and sparse yellow pubescence on the meta- 

 sternum, the middle of which is depressed, closely and delicately 

 punctured. 



In the male the sixth segment beneath is deeply and rather narrowly 

 notched, the part of the segment behind the notch being depressed and 

 shining; the fifth exhibits from its middle to its posterior margin a 

 somewhat square area, depressed, sloped, and shining, on each side 

 whereof is an elevated broadly truncate ridge, reflected at the posterior 

 margin, in the centre of which is a deep semi-circular notch. The 

 base of this enclosed area has in its middle an oblong tubercle. 



The fourth segment has a slight depression, with a thinner oblong 

 tubercle in the middle, and the remaining segments also exhibit traces 

 (gradually diminishing) of a similar nature. 



Most abundant. North., Dur.. and Cumb., Falkirk, fen district, 

 Boston, Brighton, Preston, Bungay, Eepton, and London district, 



AsPHALTiNUS, Erichson. 2^ lin. Smaller than Juno, and more 

 like ater in size and build, but more coarsely and strongly punctured 

 than either, and with shorter elytra. Black, shining; basal joint of 

 palpi, and sometimes base of the second joint, testaceous ; ajjical half of 

 mandibles pitchy red. Thorax and elytra coarsely and deeply, but not very 

 closely punctured, the interstices rugose and shining ; the former with 

 a short groove in the middle. The abdomen does not exhibit the short 

 keel in the middle of the transverse grooves noticed above. 



In the male the sixth segment beneath is widely but shallowly 

 notched at the hinder margin, and the fifth is depressed in the middle, 

 and very slightly sinuate. 



