lii 
JOURNAL OF PROCEEDINGS. 
Mr. Shuckard stated that these ants were not the Myrmica 
unifasciata, as had been supposed, but a species new to science. 
[Since described by Mr. Shuckard in the Magazine of Nat. His- 
tory, N. S., Nov. 1838, under the name of M. domestical ] 
The Secretary read a short notice of a course of lectures now 
being delivered at the Jardin des Plantes, by M. Victor Au- 
douin, upon the insects obnoxious to plants and animals. 
Mr. Ashton exhibited a collection of New Holland insects, con- 
taining several specimens of Chelepteryx Collesi, Gray, described 
in the second part of the Transactions of the Society. 
The following Memoirs were read : — 
“ Observations upon some Peculiarities observed in the Size of 
the Hexagonal Lenses of the Eyes of various Insects.” By Ro- 
bert John Ashton, Esq., M.E.S. 
“ Observations upon the Economy of the Chigoe , or Jigger of 
the West Indies.” By W. Sells, Esq., M.E.S. 
“ Observations on the Structural Peculiarities of the Chigoe.” 
By J. O. Westwood, Sec. E. S., &c. 
“ Remarks on the Symbolical Ideas entertained of the Scara- 
hceus by the Ancient Egyptians.” By the Rev. F. W. Hope, 
F.R.S., &c. 
“ Descriptions of new Species of Carabus and Calosoma, col- 
lected by Charles Darwin, Esq.” By the Rev. F. W. Hope. 
[See p. 128.] 
“ On a Disease to which Chickens are subject, produced by 
the Presence of an Annelidous Worm in the Throat.” By J. 
Main, A.L.S. 
In the discussion which ensued, Mr. Shuckard stated, that he 
had for some time past been occupied in a series of researches 
similar to those of Mr. Ashton, upon the comparative size of the 
hexagonal lenses of the eyes of insects, and the variation to which 
they are subject in the same individual ; that he had especially 
noticed that the males of the Tahanidce had some of the facets 
greatly enlarged, although the same was not observed in Astata , 
nor the males of the hive bee, also in Gyrninus ; he did not, how- 
ever, adopt the views of Mr. Ashton. He likewise stated that 
Marcel de Serres had already observed the existence of this di- 
versity of size. 
Mr. Yarrell stated that the disease in chickens described by 
Mr. Main was caused by a small annelidous parasite, described 
