PCECILID.E. 33 



'In .the European specimens the legs are hlack ; the ridge between the basilar impression and the 

 margin is less prominent ; amongst the wrinkles on each side the ventral segments there are punc- 

 ' tures ; the sides of the breast also are more thickly and grossly punctured. There is, however, an 

 apterous specimen of an American female, which agrees with the British ones in these respects. 



The Carabus Nigrita of Paykull, is clearly synonymous with the species known by that name 

 in Britain, and of which I have received Swedish specimens by the kindness of Major Gyllenhal. 

 Mr. Marsham appears to have mistaken it for a very different and larger species (O. aterrimus 7 J 

 concerning which Paykull observes 8 that it differs from O. Nigrita in having the impressions on the 

 ■ elytra visible to the naked eye, while in the latter they are not to be discerned but under a lens. It 

 is clear that Carabus Nigrita of Fabricius 9 is a distinct species, synonymous according to him with 

 C. nigro- striatus of De Geer, and C. striatus of Paykull, mistaken by several authors for C. leu- 

 cophthalmus of Linne ; Fabricius also refers to PaykulPs C. striatus under C. niger (Platysma 

 niger Steph.) 



I have likewise excluded the synonym of De Jean, for he describes his Feronia (Omaseus J 

 Nigrita, as having the two longitudinal impressions on each side of the base of the prothorax almost 

 entirely effaced, and the posterior angles as not discernible except under a powerful magnifier ; and 

 the male as having on the last ventral segment of the abdomen an elevated point ;* none of which 

 characters are to be found in O. Nigrita. 



(42) 3. * Omaseus picicorisis. Pitch-homed Omaseus. 



O. (picicornis) ater, nitidus ; palpis antennisque nigro-piceis, prothoracis foveis posticis urdsulcis punctatis cannula nulla; 

 antepectore leevi; elytris trifoveolatis. 



Pitch-honied Omaseus, very black, glossy ; palpi and antennae nigro-piceous ; basilar impressions of the prothorax punc- 

 tured, once furrowed and without any little ridge ; forebreast impunctured ; elytra with three punctiform im- 

 pressions. 



Length of the body 5i lines. 



Taken with the preceding species 



DESCRIPTION. 



This species differs from O. Nigrita, which it greatly resembles, in having the first three joints 

 of the antenna? nearly black, the rest being paler : the prothorax is rather longer in proportion and 

 less constricted at the base ; the basilar impressions have only one well-defined furrow, and no little 

 ridge intervenes between them and the margin; the antepectus is without any punctures: the legs 

 are piceous with black thighs. 



' Curtis Brit. Ent. i, t. xv. Steph. Illustr. i, 113, 1. s Fn. Suec. i, 157, 76. 



9 Ent. Syst. i, 200, 164. ' Coleopt. iii, 284, 78. 



