1908.] 13:} 



postero-ventral, and about two or three (strong) postero-dorsal; hind tibiae with 

 four to six strong antero-dorsal bristles and live strong postero-dorsal, with one or 



two weak dorsal bristles near l.ho base. Wing: bristles on vein 15 begin at. small 

 crosS vein (in bixignala Ihey begin nearer the base). Upper branch of vein 4 has 

 a slight bend near the middle. A spot in the alible between •< and t includes base 

 of -t. A slight cloud near the tip from :i to lower branch of I. flic solid veins 

 give the wing a raved appearance. 



$ with second joint, of fore tarsi simple. Lamellae orange, club-shaped. 



(To be continued). 



Some Coleoptera of the C hilt em Hills. — In a previous page of this Magazine 

 (Ent. Mo. Mag., svii, 38), I have alluded to that district of crumpled cretaceous 

 hills which on the north hank of the Thames between Maidenhead and Henley, run 

 tip into Buckinghamshire, under the name of the Chilterns, and recorded some of 

 the Coleoptera to be found there. 



A few clays spent at various times during the past year in that country has 

 provided opportunities for adding to the list ; and as South Bucks is not a district 

 which has suffered much at the hands of the Coleopterist, perhaps I may venture 

 to put a few of the more interesting captures on record. 



Chief among these I may mention Gnorimus nobilis, of which I extracted nine 

 imagines, besides several larvae and pupae, from a hole in an apple tree filled with 

 finely comminuted wood mould. Four more imagines subsequently emerged from 

 the pupae, but owing perhaps to the shock of extraction or of the journey home, 

 three of these were more or less aborted. The larvae were in very different stages 

 of growth : from small grubs under an inch in length to the corpulent white curved 

 larvae evidently full fed — the inference being that the rate of growth in the species 

 is modified directly by the supply, or more probably by the condition, of the 

 nutriment individually available, for it appears improbable that these larvae were of 

 more than one generation, if not of one oviposition, yet while thirteen had emerged 

 before the middle of July, at least as many more remained throughout the winter 

 in larval form. These fed slowly through the summer and autumn, not on the 

 decayed wood mould which filled their hollow, but on the under-side of pieces of 

 damp apple bark supplied to them. The imago enclosed in the pupal envelope 

 before emergence is quite white, after emergence it becomes tawny- brown, not 

 assuming the metallic green coloration which so distinguishes it for several hours. 



From the same hollow, pupae were obtained which subsequently appeared as 

 Eryx ater, and an Elaterid larva was abundant, whose development is still awaited 

 with interest. On another tree in this orchard a white polyporus was tenanted 

 in numbers by Reledona agaricola. 



I have already referred to the extensive beech woods which form so salient a 

 feature of this district, and supply to Wycombe the material for its staple industry. 

 Too young, or rather with their older timber too rigorously felled, to offer suitable 

 conditions for those more desirable xylophagous species which more neglected 

 woodlands supply, they yet in their fallen leaves provide a very convenient shelter 

 for many species of Staphylinid.se. Here occur in abundance, Quedius lateralis, Q. 

 nigriceps, Q. picipes, and (J. peltatus. In the autumn Mylla-na brevicornis was in 



