[Kirby divides the genus calosoma into two sub genera: Calosoma proper having the maxillary palpi with the last joint of the length of the last but one, and the elytra gilded; Chrysostigma having the maxillary palpi with the last joint shorter than the last but one, and the elytra obscure with gilded puuctiform impressions. The two species that he describes both belong to the latter sub-genus. Dr. Le Conte (Pro. Acad. Nat. Sci. Phil.,, Feb. 1862, p.52) has given a more complete classification of the species of this genus into six groups, based upcin the differences of the anterior tarsi of the males. Kirby's division has not been adopted by subsequent authors.]

When comparing descriptions of larvæ made by different writers, the Iabour of the student is often greatly increasecl by the want of order and method in their compilation. with a view of simplifying details and lessening labour, the following suggestions are offered, with the hope that they may serve to stimulate some to enter earnestly into this interesting branch of our favorite study,

Oblong-oval, piceous; legs, mouth, antennæ and sides of prothorax, rufotestaceous. Head black, shining, rather large; antennæ short, scarcely reaching the base of thorax, the latter nearly twice broader than long, basal angles broadly rounded, sides scarcely depressed at the apical angle, very much so behind, the margin narrowly reflexed, basal foveæ shallow scarcely punctured. Elytra ♂ black shining, ♀ semi-opaque and distinctly reticulate, striæ not deep, interstices somewhat convex, with a dorsal puncture behind the middle near the second stria, apex slightly and obliquely sinuate with a small but distinct sutural spine in the ♀ beneath rufo-piceous.

I think the gall described in the last number of the Entomologist by Mr. Wm. Couper, as found on the roots of the raspberry, has never been noticed before. I have in my collection a species of gall fly, hitherto undescribed, belonging to the genus Diastrophus, which I reared in great numbers from galls found on the roots of Rubus villosus, the common blackberry; these galls were polythalamous, however, and are undoubtedly distinct from his species,