276 MANDIBUI.ATA. COLEOTTEKA. 



Astenus, as before alluded to, may be known from Sunius by its 

 orbiculate thorax, exclusively of having the fourth joint of the tarsi 

 bilobed, by which union of characters it may be discriminated from 

 all the other true Stenida?. The species are generally found in dry 

 arid situations, at all times, under stones, moss, dry leaves, Sic. 



Sp. 1. brunneus. BTunntus iutus obscuriusculus, capite nigricanti. (Long. corp. 



lA— 2i lin.) 

 Psed. brunneus. Kirhy MSS.—^\i. brunneus. Steph. Cutal. 287. No. 3087. 



Ast. brunneus. Steph. Nom. 2d edit. col. 103. 



Red-b7'own, obscure, slightly pubescent : head subcordate, minutely and thickly 

 punctured^ dusky : thorax very thickly punctured, with an obscure, faintly 

 elevated, longitudinal line: elytra convex, more punctulated and pubescent 

 than the thorax, depressed towards the suture : legs, palpi, and antennae, 

 ferruginous. 



Head also sometimes red-brown, with the legs paler; eyes black. 



Apparently rare : found in Battersea-fields. " Taken near Leving- 



ton by Mr. Slieppard."— Al% MSS. 



Sp. 2. angustatus. Niger, obscwus, confertissimh punctatus, capite suborbicu- 

 lato, eJytris postice , antennis pedibusque Jlavis. (Long. corp. 1^ lin.) 



Psed. angustatus. Fabi-icius. — St. angustatus. Donovan, v. xvi. pi. 573. f. 1. 

 — Su. angustatus. Steph. Catal. 287. No. 3088. — Ast. angustatus. Steph. 

 Nomen. 2d edit. col. 103. 



Narrow, Mack, obscure, glabrous : head suborbiculate, slightly attenuated in 

 front towards the mouth, very tinely punctulated, the punctures minute : 

 thorax also punctulated, but without a carina : elytra finely punctulated, 

 shining, with the tip testaceous -yeWow : abdomen rather glossy, with the 

 edge of the penultimate segment whitish : legs testaceous-^ye/foz^; ; antenna 

 and palpi the same. 



Not uncommon, in damp, sandy, and grassy situations, within the 

 metropolitan district; found also in other parts of the country. 

 " Raehills."— i?eu. W. Little. " Crwmlyn-burrows." — Z,. W. 

 Dillwyn, Esq. 



Sp. 3. immaculatus. Niger, capite suborbiculato, antennis pedibus abdominisque 



segmentis margine Jlavis. (Long. corp. 1§ lin.) 

 Pffid. immaculatus. Kirby MSS. — Su. immaculatus. Steph. Catal. 287. 



No. 3089. — Ast. immaculatus. Steph. Nomen. 2d edit. col. 103. 



Slender, black, obscurej glabrous : head suborbiculate, finely punctulated ; 

 thorax also finely punctured : elytra immacxdate, also punctured : abdomen 



