HlfO 



THE NATUBALIST. 



day tlie wind changed from N. to 

 S.W., and the night being warm we 

 determined to see what our sugar 

 would produce ; this we accom- 

 plished in a very short time, and 

 the results shewed better success 

 than on any previous evening ; the 

 following insects being boxed : — 

 twenty E.fulvago, twenty IV. Dalilii, 

 one C. diluta, four N. glareosa, and 

 several commoner species. On 

 coming away from our sugaring 

 ground we saw L. cespitis flying in 

 all directions, but they flew so fast 

 that it was with great difficulty that 

 we succeeded in capturing five spe- 

 cimens. On dividing our spoil we 

 found that the week's work had 

 yielded us nearly 1000 pupae, — 

 most of which were A. aprilina; 

 we may therefore expect to obtain 

 some good and interesting varie- 

 ties, — together with a large number 

 of perfect insects taken at sugar. 

 This being our last day we started 

 for home early next morning, much 

 pleased with our journey. — B. Gib- 

 son, Wakefield, December, 1804. 



Field-Day near York. 

 No. IV. 

 Oct. 7th, 1864.— Our last field- 

 day was spent on Strensall Common 

 and Stockton Forest, about six miles 

 from York. The soil is principally 

 sandy : plantations of fir and alder 

 occasionally vary the desolate tract 

 of uncultivated heather-land. 



By the side of the York and 

 Scarborough line we found a profu- 

 sion of a somewhat local willow, 

 (Salix repens,) which was feeding in 

 plenty Lithocolletis quinquegnttella. 

 The larva puckers the underside of 

 the silky leaves, contracting them 

 towards the mid-rib, so as to give 

 the leaf a somewhat curled appear- 

 ance. This willow, we learn from 

 Baker, is extremely abundant on 

 the sandhills of the coast of Lan- 

 cashire. (The pretty little thorn- 

 clad Genista angllca was eaten by a 

 Coleophora named Oenistce. It is 

 particularly partial, I am told, to 

 this species : the traces of its feed- 

 ing are readily observed on the 

 leaves of the plant. We obtained 

 the yellowish-white cases in some 

 quantity, and the tenants had at- 

 tained various stages of growth. 

 Two of the Button-moths, (Peronea 

 hastiana and P. cristana,) were on 

 the wing on Strensall Common. 

 The pretty larva of Clostera recliisa, 

 which was also feeding on the Dwarf 

 Willow, was being sucked by a large 

 Hemipteron, which has the name of 

 Picromerus hidens. We saw several 

 empty skins of this caterpillar du- 

 ring our rambles, nor is its enemy 

 very particular as to its diet, as it 

 will attack the hairy caterpillars as 

 well as the smooth ones ! The 

 Dwarf Willow off'ered us also the 

 galls of some Cecidomyia, that may 

 prove distinct from any with which 



