CLASS V. INSECTA. ^ 181 



Sp. 1. Pti. pcctinicornis. Body blackish : elytra obscure brown : an- 

 tenna' and feet reddish : thorax rough : elytra punctuate. 



Ptilinus pectinicoi'nis. Fal/r., Oliv., Latr., Leach. Ptinus pectinicornis. 

 Linn., Marsh. Dcrmestes pectinicornis. Linn. ? 



Inhabits old trees and houses, perforating them to destruction. 



Obs. — Ftimis serraticornis, Marsham, is the female of this insect. 



Stirp's 2. — Antenna terminated by three joints differing from the rest 

 in size. 



Genus 127. ANOBIUM. Tuhr., Oliv., Lamarck, Latr., Leach. 

 Pti\us. LJnn., T)c Geer, Marsh. Bpa^cnus. Geoff'. 

 Antenna: eleven-jointed, with the three last joints abruptly thicker than 

 the others; the ninth and tenth joints obconic; the tenth oval. 



* Eli/tra not striated. 



Sp. 1. Anuh. tesscllatum. Thorax bilobate behind, the lateral margins re- 

 tlexcd : body fuscous, s[irinklcd with villose, obscure luteous spots : 

 elytra not striated 



Anoliium tessellatum. Tubr., Latr., Leach. Ptinus tcssellatus. Marsh. 



Inhabits the wood of rotten trees, especially willows, during the winter 

 months. 



* •■ Llytra striated. 



Sp. 3. Anoh. striatum. Fuscous, with grayish down : thorax with a gib- 

 bous protuberance, unisulcate above, with the angles compressed : 

 hinder margins somewhat marginated : elytra longitudinally punctate. 



Anobium striatum. Latr., OLv., lUig-, Leach. Anobium pertinax. 

 Fair., Payk. 



Inhabits rotten trees. 



Pam. XV, Df.rmestidje. Leach. 



Dermestini. Latreille. 



Antenna slender, longer than the head, and terminated by a large 

 ovoid mass. 



Stirps 1. — Sternum not produced to the mouth, or over it like a neck- 

 cloth : tibia spinbse. 



Genus 128. DEPvMESTES. Linn., Fair., Latr., Marsh., Herbst, 



Oliv., Leach. 



Antenna with an ovate club, the last joint short, not (or but little) 

 longer than the preceding joint : body narrow oval : thorax with the 

 hinder margin straight or olitusely lobed : palpi ve'ry short : maxil- 

 lary palpi shorter than the maxillae, or scarcely as long. 



Sp. 1. Der. lardarius. Black: base of the elyti-a with a cinereous band 

 with black points. 



Dermestes lardarius. Linn., Fabr. Latr., Marsh., Leach. 



Inhabits decayed animal substances^ paper, &c. is common in houses. 



