Note on the Carnivorous Propensity of Mollusks. Seeing in a late number (Zool. 201), a notice of snails devouring insects, perhaps I may mention that about a week ago my attention was attracted by seeing a large earth-worm writhing about in intense agony. On looking in the grass I found that a large black snail was devouring the worm; in the course of half an hour, during which time I watched it, about half of the worm was devoured by its greedy adversary. A friend of mine also tells me that he had seen a snail devouring a beetle, which had accidentally been crushed to death on the garden walk.—Robert John Bell; Mickleover House, Derby, July 10, 1843.
Note on the Capture of Lepidoptera near Cambridge. I beg to enclose you a list of rare Lepidoptera captured by myself in the vicinity of Cambridge, in the summer of 1842.
Papilio Machaon. In great abundance in Burwell and Horasey fens, the latter end of May.
Pontia Metra. Two specimens, taken in June at Shelford.
Leucophasia Sinapis. Taken in the evening by the side of a wood at Stapleford, in July, three specimens.
Vanessa C-album. Found in the same vicinity in July and August, but not in great plenty.
Vanessa Antiopa. After a long chase I succeeded in taking this fine insect at Stapleford, August 14; another specimen was seen on the wing in the grounds of King's College the same week.
Melitæa Cinxia. Two specimens taken at Stapleford, June 15.
Melitæa Euphrosyne. Plentiful in the woods of Stapleford in September.
Hipparchia Semele. Found in tolerable plenty on the Heath near Newmarket, in July.
Thecla Quercûs. Two specimens last August at Shelford; common in Monk's wood.
Thecla Rubi. Found in plenty hovering over the flowers of Rubus caesius, early in the morning.
Lycæna dispar. Reared several fine specimens from the larvae found in May on water-docks, at Whittlesea Mere.
Polyommatus Argiolus. Abundant in July, in the chalk-pits on the Gogmagog hills.
Polyommatus Alsus. Abundant in the same locality at the same time.
Polyommatus Corydon. In profusion in the same locality, the male being much more common than the female
Polyommatus Acis. One specimen, a female, taken at Stapleford in a chalkpit in June.
Nisoniades Tages. Two specimens taken in the same locality, in June.
Cyclopides Paniscus. I reared several from larvae found in White- wood, feeding on Cynosurus cristatus.
Smerinthus Tiliæ. Plentiful in August, feeding on the elm, lime &c.
Sphinx Convolvuli. I had the good fortune to capture a fine specimen of this rare moth, on an apple-tree, in September.
Chærocampa Celerio. I have seen a specimen of this very rare moth in the collection of my friend, E. Layard, Esq., Camb.; it was taken near Isleham, in that county.
Chærocampa Elpenor. Rather plentiful in the fens of Cambridge and Huntingdonshire.
Chærocampa Porcellus. Found two of the larvae in the same locality in June, feeding on Galium verum.
Sphecia Fuciformis. One specimen, hovering over the hare-bell, in July.
