282 Entomological Society. 
shell circulating over the surface of the limb, perfectly analogous to 
the system of vessels-in the ova for the supply of nourishment to 
the young; and he had no doubt that this system in the limbs had 
for its object the reproductive process. In Cancer Pagurus the em- 
bryo claw was found coiled upon itself within its sac during the 
process of reproduction, but in the Lobster it was not thus coiled 
up. : «! 
Extracts from letters were read from Colonel Hearsey and Capt. 
Boys, addressed to Mr. Westwood, containing various observations 
on the habits of Indian insects. 
In the former communication Colonel Hearsey mentions the cap- 
ture of specimens of different species of Pausside by Mr. Benson 
and Dr. Bacon, also a pair of a new species of Gstrus in copula, and 
a new Hister with white spots on the elytra, and other Necrophaga, 
taken out of the dead body of a Cobra de Capella which had de- 
stroyed a quantity of Mrs. Hearsey’s poultry. . 
In the other communication Captain Boys describes the habits of 
a species of Orthoptera belonging to Latreille’s genus Tetrir, about 
an inch long, which readily takes to the water and dives under it, 
remaining at the bottom attached to a stone for many minutes to- 
gether, the dilated foliaceous appendages of the hind legs being well- 
adapted for swimming,—being the first instance recorded of a nata- 
torial Orthopterous insect. He also mentions as remarkable, that 
he had never taken a Lucanus either in the plains of India or in the 
Vindyah range of hills, although they are not uncommon in the Hi- 
malayan range, where he always found them feeding on the fungi of 
various trees, and he had been informed that a friend had even no- 
ticed them feeding upon excrementitious matter. He had never taken 
Meloé except at an elevation of 11,000 feet above the level of the 
sea in the Himalayahs. At an elevation of 14,000 feet he took a 
Tenthredo; they were common at 10,000 feet, where the diurnal Le- 
pidoptera were scarce, and he had not there met with a single true 
Papilio: several species of Vanessa were more common, and at 
13,600 feet he took two specimens of a species allied to Doritis 
Apollo. He had also taken two or three very fine Bolboceri, and 
a Megacephala nearly allied to, if not identical with, M. Euphratica. 
Extracts were also read from a letter addressed by Dr. Cantor to 
the Rey. F. W. Hope, on the insects of Prince of Wales Island; in 
which the writer gives the following extract from his note-book re- 
specting a species of the singular genus Trochoides (of which he also 
inclosed a highly magnified figure) :-— 
“ Noy. 7, 1842. Trochoideus Amphora*, mihi. The night was 
very dark, and numerous minute insects were attracted by the flame 
of the lamp, this among the rest. It is the first and the only one 
of the Pausside I ever observed here. Those few which I have seen 
up in Bengal were captured precisely under similar circumstances, 
* T. Amphora. Piceus nitidus, punciatissimus, punctis minulis, tenue se- 
tosus, prothorace lateribus marginatis et in medio angulatis, antennis, 
clypeo, oris partibus et pedibus piceo-testaceis, Long. corp. lin, 1%, 
