COLEOPTERA. 463 



exterior of which is narrow and palpiform. The labial palpi are very 

 small ; the last joint of those of the maxillae is larger than the pre- 

 ceding ones and ovoid * 



In all the following subgenera, the antennae, or least their club, 

 are received into particular and lateral cavities in the under part of 

 the thorax. The prsesternum is ahvays dilated or projected forwards 

 in the manner of a chin cloth. 



Here, the antennal club is perfoliaceous and not solid. In 



Attagenus, Lat. — Megatoma, LaY. — Dermestes, Fab. 

 The club is very large, almost serriform, and composed of three 

 joints, of which the first and last, particularly in the males, are the 

 longest. The body is ovoid, short, and but slightly convex. The 

 last joint of the mixillary palpi is larger and ovoid f, 



Trogoderma, Lat., Dej. — Anthrenus, Fab. 



Antennal club quadriarticulated at least ; body ovoid and oblong ; 

 palpi filiform %. 



The antennal club is now solid or formed of crowded joints. The 

 body is ovid, short, and completely covered Avith little diciduous scales. 

 The thorax is lobate posteriorly. In 



Anthkenus, Geoff., Fab. — Byrrhus, Lin. 



The antennae, terminated by a club in the form of a reversed cone 

 are received into short cavities under the anterior angles of the 

 thorax. 



These Insects are very small, living on flowers in their perfect 

 state and in that of larvae devouring desiccated animal matters, in- 

 sects particularly. The larvae are oval and furnished with hairs, 

 some of which are dentated, forming tufts ; the last are prolonged' 

 posteriorly into a kind of tail. Their final exuvium serves as a 

 cocoon for the chrysilis. 



A. verbasci ; Byrrhus verbasci, L.; Oliv., Col. II, 10 1 2. 

 Grey above, reddish-yellow beneath ; the two angles of the 

 thorax, two transverse bands on the elytra, and a spot near their 

 extremity, grey ||. 



Globicornis, Lat. 



The antennae terminating in a globular club, and received into 

 fossulae extending to near the posterior angles of the thorax S. 



* Byrrhus sericeus, Duft. ; B. pygmaus, Stxirm. 



f Dermestes serra, Fab. ; Attagenus serra, Lat., Hist. Nat. des Crust, et des In- 

 sect., IX, p. 244 ; Megatoma serra, Id., Gener. Crust, et Insect, I, viii, 10 ; Anthre- 

 nius lienntnsis, Herbst., Col. VII, cxv, 10, k. 



X Anlhremis elongatus, Fab.; A. rujicornis, Lat. Gen. Crust, et Insect., II, p. 59 ; 

 — A. versicolor, Creutz., Ent. Vers., I, ii, 21, a; — Dermestes sub/asciatus, GyU., In- 

 sect. Suec, I, p. 155. 



II See Oliv. lb., and Fabricius, Syst. Eleut., I, p. 106. 



§ Megatoma rufitarsis, Lat., Gener. Crust, et Insect., II, p. 35 ; Dermestes rxifi. 

 tarsis, Paoz., Faun. Insect. Germ,, xxxv, 6. 



