44 
PROCEEDINGS OF SOCIETIES. 
History of the Cane-fly, Eelphax saccharivora , and Mr. Westwood exhibited 
drawings of several remarkable and exotic insects, as well as others illustrative of 
the Natural History of Nematus gallicola , Balaninus salicivorus , and Eulophus 
nemati , all of which had been traced by him through their different states. He 
also exhibited a living specimen of the rare Lyda inanity together with the 
remarkable nest of its larva, which consists of portions of Rose-leaves arranged in 
a spiral coil, forming a tube, which the larva bears about with it.-—Mr. Shuckard 
mentioned the occurrence of Strepsiptera in the bodies of a Wasp from North 
America, and an Ammophila from Gambia. Mr. Hope made some observations 
upon a case in which a brood of insects had been recently discharged from a 
tumour in the jaw of an old and infirm person in Lincolnshire. Collections ot 
insects from Sierra Leone and India were exhibited by Dr. Cantor and Mr. 
Strachan ; and the commencement of a memoir, by C. C. Babington, M.A., 
was read, containing descriptions of the Dyticidce collected by Mr. Darwin 
during his voyage. 
July 2. —J. F. Stephens, Esq., Pres., in the chair.—Several specimens were 
exhibited from the collection of the Rev. F. W. Hope, which presented instances 
of insectal and vegetable parasitism. From one of these individuals, a species of 
the South-American genus Acanthocephalus , numerous very long and slender 
filaments, much longer than the entire insect, and beautifully feathered, had 
vegetated, and which probably belonged to the genus Trichia. In another 
specimen, one of the large Brazilian Curculionidce , a Dipterous larva had pro¬ 
truded itself between the front of the thorax and the head.—Mr. Westwood 
noticed a remarkable modification in the habits of the caterpillars of a small 
Moth, which at first burrows in the leaves of the common Lilac, but after it has 
attained sufficient strength, it rolls back the leaves, fastening them in a curl with 
silken thread.—The memoirs read, were:—1. Further notes on the habits of 
Stylops Dalii , by Mr. Thwaites. 2, Conclusion of a monograph on the genus 
Popillia^hy Mr. Newman. 3, Description of a remarkable specimen of Dytiscus 
marginalise in which part of the external marks of sex were obliterated, and 
partially replaced by those of the opposite sex, by J. 0. Westwood. Mr. 
Yarrell also noticed several somewhat analogous instances occurring in Crus- 
taceous animals. 
