COLEOPTERA SCOLYT1D.K. 107 



species is double-brooded, whereas it was possibly due to erratic 

 swarming. 



It may be rioted that the larvae work in the bast and on the sur- 

 face of the wood. The bast is a lightish- 

 cream colour, and the frass from the larvae 

 is a deep dark chocolate. 



The mother-gallery is two-armed, the total 

 length being about 1^ inch. The larval gal- 

 leries are at right angles with the mother- 

 gallery, and vary in length from \ to h an 

 inch. The workings are generally in com- 

 paratively small branches (fig. 99). 



The beetle (fig. 100) is the smallest species 

 of the group, and, viewed with a strong lens, 

 certainly the prettiest. The form is more F ig- 100 /- H > Tl si " us "ttatus. 



J r (From Barbey.) 



linear than any of the other species. The 



thorax is slightly grey, and the elytra are beautifully variegated, 

 so much so, that the colouring is suggestive of a moorfowl's egg. 

 The antenna? are lightish-brown, and the whip portion is compar- 

 atively long. The legs are also light-brown. 



Genus Hylukgus. 



Upper side of body clothed with scanty hairs ; thorax long hairs at 

 the sides. Eyes entire and longish. Whip of antennas thread-like 

 and six-jointed ; club ovate. First tarsal joint longest ; third very 

 broad. Elytra extremely punctured. 



Hylurgus pixiperda (Linn.) 



Myelopliilus piniperda, L. (Eichhoff and Fowler). 



Hijlesinus piniperda, L. (Judeich and Nitsche). 



The above synonyms show that leading entomologists use different 

 generic names. The practical forester of this country has always under- 

 stood it as Hylurgus, but Fowler adopts Myelophilus as the generic term. 

 The genus contains two species, and Fowler l gives the following 

 key viz. : 



I. Second interstice of elytra flattened, and without tubercles at 

 apex . . . . . . H. piniperda, L. 



II. Second interstice of elytra not depressed, and with a row of 

 small tubercles at apex . . . H. minor, Hart. 



1 British Coleoptera, vol. i. p. 419. 



