270 INSECTS. COLEOPTERA. 



1. Antenna thickening insensibly. 



Gen. EURYPUS, AXINUS, PRIOCERUS, THANASIMUS, TILLUS. 



2. Antennae terminated abruptly by seven or three joints larger than the preceding. 



Gen. ENOPLIUM, CYLIDRUS. 



Gen. NECROBIA, Lat. Dermestes, Lin. 

 Tarsi with four joints, the penult bilobed, the rest concealed in 

 the lobes ; antennae with the last three joints transverse and 

 uniting to form a club in the form of a reversed triangle ; 

 last joint of the four palpi obconical. 



N. violacea, Lat. Shining violet blue, downy ; antennae and feet 

 black. Europe, on decayed matters Lat. Hist. ix. pi. 77* fig- 5. 



Gen. CLERUS, Lat. Geoff. Trichodes, Fab. 

 Antennae nearly the length of the thorax, with the last three 

 joints forming a nearly triangular club ; intermediate joints 

 of the tarsi broad, furnished with tufts below ; last joint of 

 the labial palpi clavate, securiform. 



C. apiarius, Lat. Blue, with the elytra red, and three blue bands, 



of which the last is terminal. Found in Europe, on flowers 



Lat. Gen. i. 273. 



Gen. OPILO, Lat. Attelabus, Lin. 



Four joints in the tarsi, the first concealed under the second, 

 which, with the two following, are spongy and bilobed ; four 

 palpi terminating in a dolabriform joint ; antennae thickening 

 towards the extremity, the penult joint in the form of a re- 

 versed triangle, the last ovoid. 



O. mollis, Lat. Fuscous, hairy; the elytra pale yellow, with two 

 brown transverse bands, and the suture brown ; feet pale, with 

 the joints brown. 4 lines long. Inhabits Europe Lat. Hist. ix. 

 pi. 77, %. 2, 3. 



Gen. THANASIMUS, Lat. Clerus, Geoff. 

 Maxillary palpi filiform ; labial ones with the last joint clavate, 

 securiform ; antennae with the last joint ovate ; tarsi with four 

 joints, the penult bilobed. 



T. formicariits, Lat. Black ; thorax and base of the elytra red ; 

 elytra with two transverse white bands. Inhabits Europe, on 

 trees Lat. Gen. i. 270. 



Gen. TILLUS, Oliv. Chrysomela, Lin. 



Tarsi with five joints, the last bilobed ; antennae serrated, thick- 

 ening towards the point ; maxillary palpi filiform, and the 

 last joint of the labial large and securiform. 



T. elongatus, Oliv. Black, slightly hairy ; antennae filiform, almost 

 the length of the body ; thorax reddish, cylindrical, nearly the 

 breadth of the head. Inhabits Europe, on flowers. Lat. Hist. ix. 

 pi. 76, %. 8. 



