128 FOREST ENTOMOLOGY. 



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

 species being entirely absent. 



Trypodendron quercas, 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 : — 



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

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

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

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



Fig. 126.— Xyleborus dispar {male). Fi^'. ]27.-Xjl<:buiu., a.^p^vi (female). 



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

 furnished Avith more or less distinct tubercles, which are sometimes 

 almost obsolete ; punctured striaj distinct, interstices closely and 

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

 antenna; has the sutures very slightly curved, and the funiculus is 

 five-jointed." ^ 



Xyleborus disfar (F.) 



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



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



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



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



^ Fowler's British Coleoptera, vol. v. 



