46 



" Pezomachus agilis, Fab. Females of this ichneumon and Microgaster annulipes ? 

 were bred from the same bundle of cottony cocoons, and T have mt)re than once ob- 

 served the same fact. It may be inferred that the Pezomachus is the parasite of the 

 Microgaster, yet it is possible their larvae might inhabit the same caterpillar and the 

 whole spin up together, for Ratzeburg has bred P. agilis from the larvae or pupae of 

 Orthotaenia Buoliana, P. hortensis from Tinea lichenella, and a third species, which he 

 names P. terebrator, from the pupae of Bombyx Salicis ; whilst Schonherr has reared 

 P. pedestris from larvee of Hypera plantaginis, and Degeer has bred a species from 

 the larva of a Curculio. Mr. Haliday bred a species of Pezomachus and Hemiteles 

 fulvipes from the mass of cocoons formed by Microgaster intricatus. 



" Scopula prunalis, W. V. End of April, the caterpillars feeding on the leaves of 

 scarlet geraniums, at Cranford. 



" Lophonotus fasciculellus, Steph. The caterpillars feeding on the leaves of An- 

 gelica sylvestris, leaving the entire membrane perfect like lace. Several specimens of 

 this beautiful and curious Tinea were bred from them, together with a Microgaster. 



" Tephrilis guttularis, Meig. Bred from galls at the top or collar of roots of 

 Achillea Millefolium. 



" Heteroneura albimana, Meig. Bred from rotten willows. The pupae resemble 

 those of Piophila Casei. 



" The following Siapbylinidae, which I have not seen in any other British collec- 

 tion, were captured by myself, and have not I believe been recorded as inhabitants of 

 England : — 



" Myrmedonia funesta, Grav., I found in a fungus in Birch Wood, on the 6lh of 

 May, 1821. 



" Gymnusa brevicollis, Payk. On the 13lh of May, 1844, I swept a fine speci- 

 men off rushes by the side of a brook near the sea, at Covehithe, Suffolk; and Mr. 

 Haliday also captured one on ihe edge of a pond near Holywood, Belfast. 



" Euryporus picipes, Payk. I took this rare insect in June, 1837: I believe it was 

 found under a stone at Slaughter, in Gloucestershire. 



" Stenus vafellus ? Erich.., and S. aemulus, Erich., I discovered in the marshes at 

 Horning, Norfolk, on the 14lli of July, 1840. I am indebted to Mr. Waterhouse for 

 the names of these two species, which he found in ray collection." 



British Species of Stenus. 



Mr. Waterhouse read a memoir, by himself and Mr. Janson, on the British species 

 of the genus Stenus, with notes on the species of the genus in the collection of the 

 late Mr. J . F. Stephens. 



Brazilian Ants. • 



Mr. Smith read a paper, by himself, entitled " Descriptions of some Species of 

 Brazilian Ants, with Observations on their Economy by Mr. H. W. Bates." 



In his note on a new species, Eciton legionis, Smith, Mr. Bates says that he only 

 found it on open, sandy and grassy campos, which kind of locality afforded him an 

 opportunity" of observing some parts of the habits of the species, and the business 

 which occupies its immense processions. Among other things, he noticed that the 



