COLEOPTERA. 51 



as the insects themselves are not considered of primary importance, 

 and it would be well, therefore, to give the respective insects which 

 cause the particular injuries referred to in each division, but unfortun- 

 ately we cannot get, owing to absence or rarity, the British species to 

 fully coincide with the German arrangement in question. 



In the first group Judeich and Nitsche give Anobium emar- 

 ginatum, a species not recorded in Britain. These writers, how- 

 ever, say that it is not an injurious species, and only lives in 

 the bark of old spruce-trees. 



Tribe ANOBIINA. 



Fowler divides the tribe into the following genera : 



I. Elytra with punctured striae distinct, at all events at sides ; 



posterior coxae distant. 



1. Antenna? sub-contiguous at base, with the last three joints 



slender and long, especially in male Dryophilus, Chevr. 



2. Antennae distant at base, with the last three joints enlarged, 



evidently broader than preceding. 



(1) Thorax not margined at sides . . Priobium, Mots. 



(2) Thorax margined at sides . . . Anobium, F. 



II. Elytra without punctured striae ; posterior coxa? contiguous. 



1. Tarsi with the fifth joint broad ; tibiae stout Xestobium, Mots. 



2. Tarsi with the fifth joint elongate ; tibiae, slender 



Ernobius, Thorns. 



Priobium castaneum (F.) 



This beetle is very common in Northumberland, in old dead thorn 

 hedges. On May 26, 1905, I cut up a number of dead thorn stems 

 from a hedge (fig. 51) and found several fully developed beetles, to- 

 gether Avith a few fully developed larvae inside the stem. I laid aside 

 a few pieces in a bag, and the beetles hatched out about the middle 

 of June, or three weeks later. 



The beetle is oblong, of a dull reddish-brown colour ; antennae and 

 legs red ; head fairly large, with prominent eyes ; thorax broader than 

 long, and narrower than elytra. The division between the elytra 

 forms a deep furrow, and the longitudinal markings on the wing- 

 covers are beautifully parallel, so that under a strong lens it looks like 

 corduroy. Length about 4 mm. 



