182 MODERN SYSTEM. 



Genus 129. ATTAGENUS. Latr., Leach. Megatoma. Ilerhst. 



Dermestes. Fabr., Linn., Latr., Marsh. 



Antenna, with an eiongate-ovate club, the last joint longer than the 

 preceding (especially in the male), triangular or conic : body broad- 

 oval: tliora.v with the posterior margin narrowly and acutely lobed: 

 maxiUary palpi exserted, longer than the maxillce; the last joint 

 elongate-cylindric, very long in some. 



Sp. l.^Att. Pellio. Black; middle of the antenna and of the tarsi ob- 

 scure red ; hinder margin of the thorax with three spots, and the 

 elytra with a spot on each side of the suture villose-white : antennae 

 of the male with the last joint ensiform, very long. 



Dermestes Pellio. Linn., Fabr., Marsh., Latr. Megatoma nigra. 

 Herbst. (variety of the male.) 



Inhabits skins in houses, old wood, and paper. 



Stirps 2. — Sternum produced over the mouth hke a neckcloth: tibicc 

 not or but slightly spined. 



Genus 130. MEGx\TOMA. Flerbs^t., Latr., Leach. Dermestes. 

 Linn., De Geer, Fabr. 



Body narrow-oval : antenna with an oval or oblong club with the inter- 

 nal edge simple. 



Sp. 1. Meg. undatum. Black; sides of the thorax and two undulated 

 bands on the elytra white villose : tarsi obscure red. 



Megatoma undulata. Herbst. Megatoma undatum. Latr. Dermestes 

 undatus. Linn., Fabr., Oliv., Punz. 



Inhabits birch trees (beneath the bark) in the months of March and 

 April ; the lar\'a spins a silken web in which it changes to a pupa. 



Fam. XVI, Byrrhid^. Leach., 



Byrrhi. LatreiUe. 



Body ovoid : feet entirely or semicontractile : sternum anteriorly pro- 

 duced to a mouth in the form of a neckcloth : antenna thicker to- 

 wards their extremities : ^am with five very distinct articulations: 

 antenna straight, not inserted in the cavity of the eyes : feet perfectly 

 contractile : mandibles but little or not at all prominent. 



Genus 131. ANTHRENUS. Geoff., Fabr., Oliv., Lam., Latr., 

 Leach. Byrrhus. Linn., Marsh. Dermestes. De Geer. 



Antenna shorter than the thorax with the club solid: palpi filiform, 

 short : body orl)iculate-ovate : scutellumvery minute. 



Sp. 1. Anth. Scrophularia. Black: sides of the thorax and three trans- 

 verse bands on the elytra gray : suture and external margin of the 

 elytra and hinder margin of the thorax red lutescent. 



Anthrenus Scrophularife. Fabr., Latr., Leach. Byrrhus Scrophulariae. 

 Linn., Marsh. 



Inhabits the blossoms of various plants, 



