1890.] 



THE YOUNG NATURALIST. 



to night ; do not suppose however that by this process of expanding 

 the wings, the insect flies because it is not so ; when the insect wishes 

 to fly it moves its wings by the aid of its powerful thoracic muscles. 



NOTES AND OBSERVATIONS. 



Green Insects changing colour when damp. Among the sub- 

 jects mentioned in the report of the last meeting of the Entomological 

 Society is that of a green bug, Pcecilocliroma lewisii, changing to a 

 metallic copper colour when damped. Precisely the same 

 phenomenon occurs with any of the Foresters, I no. On a damp day, 

 if found at rest on flowers or grass stems they are quite of a coppery 

 hue, reverting to their normal colour when dry, and preserved speci- 

 mens retain the same peculiarity. — John E. Robson, Hartlepool. 



Repairing Insects. We all occasionally mend insects. I have 

 tried everything from Gum Arabic (most objectionable as tending to 

 mould) to coaguline and liquid glue, but find by far the best what I 

 take to be a colourable imitation of coaguline — id. bottles labelled 

 " soluble glue, prepared by Robinson, London, N " — obtainable at oil 

 shops, &c. It sets immediately, so that antennae or bodies remain in 

 the position required without drooping. The next best cement is fish 

 glue.— Sydney Webb, Dover. 



For this I have tried everything and have settled on common 

 bookbinders paste, made stiff, with a grain or two of corrosive sublim- 

 ate in it, the same in fact as I use for papering my drawers. — John 

 E. Robson, Hartlepool. 



From the Note book of the Exchange Club. 



Captures at Light. — I have obtained a splendid series of B. 

 hirtaria, including many fine varieties, also a good many Pennaria, 

 and a few specimens of P. populi. They were all captured at light to 

 which they came in great numbers until the 2nd of this month when 

 we had 7 degrees of frost. Since then I have not seen one. — D. H. 

 Stewart, Radley College, Oxford. 



Deilepla Galii in 1888. — Apropos of Mr. Tugwell's remarks 

 on this sublect in the Y. N. for November, it may be well to remark 

 that last year I searched long and diligently for the larva of the above 

 species without success, but I understand the larva was got near 

 Aberdeen by one of the local collectors. — Wm. Reid, Pitcaple, Aber- 

 deenshire, 30/11/89. 



