There have been described, thus far, three N. American moths whose larvæ produce galls, or more or ress decided enlargements of the stems of their food-plant. They are, frrst, Gelechia gallæsolidaginis, described by Riley, with cuts, in the First Mo. Rept. at page 173; accompanying the description is an account of six parasites. Second, Walshia amorphilla, described by Clemens in Proc. Ent. Soc. phil., vol. ii., page 419 ; also an account of larva habits, etc., with cuts, is given in the Second Mo. Rept. at page 132. Third, Paedisca (Euryptychia) saligneana, dsscribed by Clemens in Proc. Ent, Soc. Phil., vol. v., page 141 ; an account of it also occurs in the Second Mo. Rept., page 134.

This season I have seen some peculiarities in rearing Papilio cresphontes that seem worth noting. I had at one time four of the larvæ in a cage of three different broods. The two older ones changed to chrysalids June 29th; one from the top of the box with the head down, number two on the side with head up. Number three pupated July 11th, on the side of the box, head up; number four changed July 14th, suspended from the top the same as number one, all of them at an angle with the object to which they were attached, as is usual with Papilios.

Mesostenus Nubilipennis.–♀. Black ; anterior orbits, lower part of cheeks, spot on middle of face, most of clypeus and labrum, spot on mandibles, annulus on antennæ, line on sides of collar, spot on each side of prothorax above, spot on disk of mesothorax, most of scutellum, dot on post-scutellum, tegulæ, spot beneath, spot on sides of pleura, spot on each side behind posterior wing, two elongate marks on metathorax behind covering the prominent, obtuse and transversely compressed tubercles, the four anterior coxæ, spot on posterior pair above, annulus at base of posterior tibiæ, extreme base and apex of the first joint of posterior tarsi, the second, third and fourth joints entirely, and the apical margin of segments 1-6 of abdomen, all white ; front unarmed ; thorax opaque; mesothorax confluently punctured ; metathorax reticulated; wings hyaline, with a fuliginous cloud beneath stigma, areolet quadrate, closed; legs fulvous, extreme tips of posterior femora, their tibiæ except white annulus near base, most of basal joint of their tarsi, and the apical joint, black ; abdomen fusiform, rather shining, punctured, first segment considerably dilated at apex ; ovipositor shorter than abdomen.

This pretty and interesting species, described by Mr. G. R. Crotch from a single specimen in the collection of Prof. Ulke, of Washington, D. C., who received it from Kentucky ten years ago, has remained unique in his collection until I found it, together with its larvæ and pupa.

Its food is fungus ( Polypora) growing on logs. Its full-fed larvæ are 7/8 inch 1ong, rather slender, of light color, with the head brown; it eats out a cavity in the fungus, and there transforms to a pupa, which is of a pale flesh color.

For several years past I have searched carefully for larvæ of this species, only to be rewarded with damaged wardrobe and wet feet. This season I determined to try the plan of breaking off the button-bush branches and shaking them over paper spread on the ground. On my first trial I secured one nearly full-grown larva of versicolor, and six half-grown larvæ of promethea. Unfortunately I was unable to visit the bushes again until it was too 1ate. The advantages this method has over that of examining the bushes while standing are manifold.