128 



FOREST ENTOMOLOGY. 



livid yellow over the whole surface, the irregular lines in the previous 

 species being entirely absent. 



Trypodendron quercus, Eich., is a species I have not found, but 

 Fowler says it is fairly common in Sherwood Forest. 



Genus Xyleborus. 



The following are the chief characters of the genus, according to 

 Fowler : 



" Tibia? broad, more or less serrate, and furnished with furrows for 

 the reception of the tarsi, which are rather short ; presternum excised 

 as far as the coxae, and furnished with a very short process ; thorax 

 rough in front, and not margined behind ; elytra without an impressed 



cT 



9 



Fig. 1 2c>. Xyleborus dispar (mate), 



Fig. 127. Xyleborus dispar (female). 



line along suture, with the apex not excavated but slightly reflexed, 

 furnished with more or less distinct tubercles, which are sometimes 

 almost obsolete ; punctured striae distinct, interstices closely and 

 rather finely punctured in rows ; eyes emarginate ; the club of the 

 antennae has the sutures very slightly curved, and the funiculus is 

 five-jointed." 1 



Xyleborus dispar (F.) 



"Beetle, $ 2 mm., $ 3 mm. long (figs. 126 and 127). Pitch-black, 

 the antennae and legs testaceous-red. $ short, convex, ovoid, and very 

 hairy, with the thorax granular in front, punctured towards the base, 

 with a smooth median line. The cylindrical, its thorax in front 



1 Fowler's British Coleoptera, vol. v. 



