Insects. 1675 



HydrcBna riparia. Common, particularly in stagnant-pools, adhering to the under- 

 side of floating leaves. 



Micropeplus porcatus. Occasionally found in grassy places. 



Micropeplus staphylinoides. I got a good number of this species at Long-Benton, 

 in October 1843, flying over decaying straw and dung. 



Atomaria nigripennis. Occurs in abundance, in cellars, adhering to the the under- 

 side of boards in damp places. 



Holoparamecus depressus. I have two specimens of this apparently rare species ; 

 they were taken in a shop-window in Newcastle. 



Ips 4-pustulatus. I captured a dozen or two of this fine species, in posts and 

 stumps of Scotch-fir (Pinus sylvestris), at Walton Wood, Cumberland, in June. 



Ips 4-guttatus. I took a solitary individual marching leisurely up a fir-post in the 

 same wood. 



Ipsferruginea. In the same locality as the others, but in much greater numbers : 

 it more particularly affects the stumps of such fir-trees as have been cut down for some 

 twelve or eighteen months, running its burrows considerably below the level of the ad- 

 jacent soil. 



Monotonia picipes, M. angustata. I find both species on hot-bed frames, in May, 

 June and July. 



Rhyzophagus ferrugineus, R. depressus, R. dispar. In posts and stumps of Scotch- 

 fir, I found the first and last in great abundance at Walton Wood, in June : some of 

 the large stumps being tenanted by hundreds of individuals. 



Trogosita mauritanica. One of our imported species. It is brought from the East 

 Indies by the trading- vessels which frequent the port. I have seen great numbers of 

 the larvae in Madras rice, where I have also found Silvanus Surinamensis, S. dentatus, 

 S. unidentatus, and Calandra Oryzae. T. mauritanica is of frequent occurrence in 

 shops and warehouses in this town, and I have received it from the country, where it 

 was found amongst flour. 



Dermestes lardarius. Of frequent occurrence in houses and shops. Is it well au- 

 thenticated, that the larvae feeds on bacon ? I find them amongst rubbish in drawers, 

 and other neglected places. 



Abrceus globosus. Common beneath boards on dung, around hot-beds. I find that 

 boards placed on dung around hot-bed frames, to be a very productive method of col- 

 lecting, especially for many minute species, and Biachelytra. 



Oxyomus Sabuleti. I got a pair on the sandy banks of the Irthing, and Mr. 

 Thomas Pigg, Jun., has a specimen, taken by the Derwent-side. 



Necrobia quadra, N. ruficollis. Plentiful in carcasses. I once saw great numbers 

 of larva, pupa and imago, in the putrid carcass of a dead dog. 



Necrobia rufipes. Occasionally in carcasses. I have several specimens taken 

 amongst cheese in shops. 



Piinus hololeucus. Common ; appears about midsummer, in warehouses and other 

 places. I once saw hundreds crawling on sacks containing foreign tares, those sacks 

 were coated over with silk, beneath which were great numbers of larvae, but whether or 

 not, they were the larvae of this insect, I was unable to determine. 



Gibbium scotias. This grotesque fellow is abundant with us, and is generally found 

 in neglected corners of old houses. I have had a good supply from Long Benton, 

 which is some three miles or so into the country. 



Anobium molle. Has occurred in profusion near Newcastle, inhabiting Scotch-fir 



