98 FOREST ENTOMOLOGY. 



Tribe HYLESININA. 



The tribe Hylesinina is divided into the following genera by 

 Fowler viz. : 



I. Eyes not divided ; third tarsal joint nearly always dilated and 



bilobed. 



(i) Funiculus of antennae with seven joints. 



1. Club of antennae globose or ovate. 



A. Anterior coxae contiguous ; first joint of the club of 



the antennae very large, shining, the following very 

 short Hylastes, Er. 



B. Anterior coxae widely distant ; first and second joints 



of the club of the antennae large, almost equal, the 

 following very short . . Hylastinus, Bedel. 



2. Club of antennae compressed, oblong . Hylesinus, F. 

 (ii) Funiculus of antennae with six joints. 



1 . Anterior coxae narrowly separate ; thorax with long villose 



hairs at sides ; length 4-5 mm. . Myelophilus, Eich. 



(Hylurgus pars, Brit. Cat.) 



2. Anterior coxae rather widely separate ; thorax evenly 



pubescent; length 2| mm. . Cissophagus, Chapuis. 

 (iii) Funiculus of antennae with five joints. 



Club of antennae oval, nearly globose, formed of four 

 joints, fitting closely together Xylechinus, Chapuis. 



(Carphoborus, Brit. Cat.) 

 Club of antennae formed of three loose detached joints 



Phlceophthorus, Woll. 



II. Eyes completely divided ; third tarsal joint entire, not broader 



than the preceding ; antennae with a solid ovate club, and 

 with the funiculus five-jointed . . Polygraphus, Er. 



Genus Hylastes. 



This genus is interesting to the collector, but not specially so to the 

 forester. Fowler gives five and Barbey eight species. They can be 

 readily distinguished by their general cylindrical appearance. The 

 thorax is not broader than long, and has long, smooth, punctured 

 lines, and the abdomen is practically uniform with the thorax. The 



