18(56] 95 
" Tho female of this fly is f^rogarions, and attaches its eggs in large clusters 
" to boughs hanging over streams, and there remains, and shortly dies. The 
" cluster is generally pear-shaped, and sometimes contains many thousands of dead 
" flies, and continually receives accessions by new comers settling upon it. When 
" the larva is hatched it falls into the water, its future residence ; it has a forked 
" tail about one-third of tho length of the body, and has the power of raising itself 
"in the water by an incessant undulating motion in a vertical plnne." 
See also Proc. Ent. See, London, 1848, Aug. 7th ; where is reported the 
exhibition by the late Mr. J. P. Stephens of a large mass of this fly, about two 
inches in diameter, found by the Rev. F. W. Hope on tho banks of the Severn, at 
Berwick, near Shrewsbury. This mass was composed of an immense number of 
individuals, closely adhering together around a small branch. 
In the Proc. of 2nd July, 1849, is, also, the following note : — 
" Mr. Westwood showed some flies and their eggs, part of a cluster of sixty or 
" seventy found in a tuft of hawthorn, about twelve miles from Derby, and sent to 
" him by Mr. Spencer, who had remarked that each fly seemed to remain as a 
" protector over the eggs it had deposited. They were identified as Atherix ihis." — 
Eds.] 
Offer of Nyssia zonaria, eye. — Having duplicates of N. zonaria, as well as 
of Liparis salicis and Cicindela hyhrida, I shall be happy to supply any collector 
with some of each of these insects (as long as my stock lasts), on receipt of a box 
and return postage. — E. L. Ragonot, 5, Clifton Crescent, Clifton Park, Birkenhead. 
Sialis fuliginosa in Dorsetshire. — Mr, Dale showed me examples of this species 
captured near his own residence at Glanville's Wootton, which do not differ from 
the individuals from Rannoch (vol. 2, p. 107). In these the character of the posi- 
tion of one of the transverse nervules (as represented in the figure) holds good, 
notwithstanding that, as I before mentioned, tho neuration of Sialis is scarcely ever 
precisely identical even on the two sides of the same individual. — R. McLachlan, 
Forest Hill. 
Cannibalism of the larvce of Coccinella. — A few evenings since I came upon a 
whitethorn hedge at Lewisham, which was abundantly tenanted by the larvge of the 
common two-spotted lady-bird, Coccinella hipunctata. Whether their usual food 
{Aphides, ^c.) had run short, or whether they preferred a pabulum that aS'orded a 
greater supply of nutriment with less trouble, I cannot say, but any way I observed 
numerous larva? busily engaged in sucking the juices of such of their own kindred 
as had recently turned to pupse : their heads being deeply ensconced in the interiors 
of their helpless companions. — Id. 
Clisiocampa castrensis. — 1 have found the larvge of C. castrensis in abundance 
at Mersea and St. Osyth, near here. I have no doubt it occurs all round the Essex 
coast. I had hoped to have plenty for disposal, but confinement does not appear 
to suit them, as great numbers died ; and although they were amply supplied with 
what is said to be their proper food, they did not thrive well. — Henry Layer, 
Colchester, Aug. 1st, 1866. 
