312 MANDIBULATA. COLKorjEJCA . 



Black, glabrous, shining : head ratlier narrower than the thorax, subcordate^ 

 punctured, with a transverse impressed line posteriorly, and behind the eyes 

 two short ones ; before the antennae on each side is a small tubercle, and in 

 front are two very short, horizontal, unarmed spines : thorax truncate and 

 dilated in front and trilobed behind, with an impressed dorsal channel, the 

 disc finely punctured : elytra punctured, black, with one oblique pale dash: 

 abdomen with its apex somewhat acuminated : legs pitchy-black, with 

 the tarsi red: antennae black. 



It is probable that this insect may be the female of the following species. 



Not uncommon within the metropolitan district, and in Suilolk, 

 Norfolk, near Bristol, &c. " Abundant in York&hirc.'''' — Ileo. 

 G. T. Rudd. 



Sp. 2. morsitans. Niger, nitidus, thorace nnisulcato, capUe foveato, elytris pedi- 

 husque piceis. (Long. corp. 1| — 2 lin.) 



Sta. morsitans. Paykull. — Ox. morsitans. Sfeph. Catal. 295. No. 3179. — 

 PI. morsitans. Steph. Nomen. 2d edit. col. 105. 



Black, shining, very smooth : head rather wider than the thorax, subcordate, 

 punctured, unequal, with a transverse and short longitudinal line behind the 

 eyes ; front depressed and smooth ; before the eyes is an acute tubercle on 

 each side : thorax rather longer than the head, truncate in front, rounded 

 behind, punctured, with a longitudinal dorsal groove : elytra shorter than 

 the thorax, pitchy-red, very much punctured, with a single stria towards 

 the suture : abdomen linear with a few diverging hairs, the apex acumi- 

 nated : legs pitchy-red : antenna? dusky black. 



Extremely common in the neighbourhood of the metropolis ; — 

 also found in other places, in company with the preceding, of which 

 it may be a mere variety or the other sex. " Abundant in York- 

 shire."" — Rev. G. T. Rudd. " Not unfrequent (near Swansea)." — 

 L. W. Dillwyn, Esq. 



Sp. 3. trilobus. Niger, nitidus, thorace pj'ofunde unisulcato, pedihus fusco-Jia- 

 vescentibus. (Long. corp. 1§ lin.) 



St. trilobus. Olivier.— O^yt. irilohns. Steph. Catal. 29^. A^o. 3180.— PI. tri- 

 lobus. Steph. Nomen. 2d edit. col. 105. 



Shining black, glabrous: head scarcely wider than the thorax, subcordate, 

 with an impression in front and a transverse line behind: thorax cordate, 

 truncate in front, rounded behind, with a deep longitudinal channel its entire 

 length: elytra convex, black, very much punctured: abdomen glossy, its 

 apex acuminated : legs pitchy, or dusky-yellowish : antennae dusky or 

 blackish. 

 Found near London, and in Suffolk, &c. 



