116 FOREST ENTOMOLOGY. 



in size, — from 1 to 2 mm., — the characters are entirely microscopical. 

 The following generic characters may be given : — 



Pronotum as broad as long, with small hump projecting in front 

 portion. Elytra slightly hairy, conspicuously punctured, and well 

 covering the abdomen. Whip of antennae four-jointed ; joints very 

 small ; club comparatively large ; tibia broad, and toothed on outer 

 edge. 



The following are the specific characters, according to Fowler — 

 viz. : 



I. Club of antennae with the sutures transverse, almost straight ; 



body behind thorax, only twice as long as broad. 



1. Eyes entire ; thorax Avith four transverse rows of granules in 



front ..... (7. tilice, Panz. 



2. Eyes emarginate on their anterior border ; thorax confusedly 



granulate. 



A. Elytra with very short, scarcely visible, hairs ; rows of 



punctures on elytra not very fine, and placed in some- 

 what impressed striae . . C. ahietis, Eatz. 



B. Elytra with long raised hairs ; rows of punctures on elytra 



very fine .... (7. piceiv, Eatz. 



II. CIul) of antennae with the sutures strongly curved ; liody 



behind thorax three times as long as broad ; elytra without 

 striae ...... C. fagi, Nord. 



Cryphalus abietis, Eatz. 



This species is found on dead spruce branches, — generally at knots 

 of the branches. It is considered rare, but this arises probably 

 from its being overlooked, for I have found it in the south of 

 England, and again in the north-east of Scotland. Figs. 108 

 and 109. 



Eichhoff says it is double-brooded, as the first brood swarmed in 

 February and March, while snow was still on the ground, and the 

 second brood appeared about the latter end of July. 



I received a portion of a stem of young Douglas fir, heavily 

 attacked by this insect, from Mr A. C. Forbes, Bowood, Wiltshire. 

 As a rule, this tree is almost immune from insect attacks. Mr Forbes 

 has again sent me an example of this species on Douglas fir from 

 Cockle Park, Northumberland. 



