288 MANDIBULATA. — COLEOPTERA. 



insect, to which I find, by an old MSS., I applied the name C. 

 bicolor ; but having subsequently obtained the original Marshamian 

 specimen of Crioceris angulosa, I have reverted to his name. Found 

 in June, at Coombe-wood. 



Sp. 16. dubius. Ohlongus, rufo-testaceus, pubescens, oculis nigris, corpore 

 subtus antennarumque apice nigro-fuscis. (Long. corp. l^lin.) 



Cy. dubius. Steph. Catal. 129. No. 1312. 



Oblong, rufo-testaceous, pubescent, with the eyes black, thorax immaculate rufo- 

 testaceous : elytra with a slightly dusky streak on the suture : body beneath 

 dusky-black, the segments and apex finely margined with testaceous : an- 

 tennae testaceous at the base, dusky at the apex, the second and third joints 

 a little elongate. 



Known from the rest of the genus by having the second and third joints of the 

 antennae slightly elongate, and from the preceding, with which it agrees in 

 having the head exserted, by the thorax being testaceous, the elytra convex, 

 and not carinated. 



Found near London ; I believe at Darenth-wood, in June. 



Family XXXVI.— LAMPYRLDiE, Kirby. 



Antennas filiform, approximating at the base, rather short, composed of com- 

 pressed articulations, frequently serrated or pectinated. Palpi, maxillary 

 much longer than the labial, which are usually small, very short, subcylindric 

 or robust, with the terminal joint triangular: mandibles very acute, entire, or 

 bidentate at the apex : head exserted or concealed beneath the anterior margin 

 of the thorax, the latter transverse or semicircular : body oblong, more or less 

 depressed: tarsi 5-jointed, with the penultimate joint bifid. 



The typical genera of this family are distinguished by having 

 the antenna? closely approximating at the base, and frequently 

 pectinated or serrated, the articulations compressed; the body 

 elongate, depressed, soft, &c, and the penultimate joint of the tarsi 

 bilobed. 



The larvae are depressed, broad, and in the typical genus closely 

 resemble the apterous females : they are, so far as known, carni- 

 vorous. 



The following genera occur in Britain ; but with regard to the 

 location of the first I do not feel satisfied. 



(bidentatae: .... 236. Diulus. 



;egres : 

 Caput 



Mandibulce apicc < 



(integres: C sub thorace absconditum : . 237- Lamvyms. 



£ exsertum, anticein rostrum productum : 238. Lycus. 



