The following larvæ (with the exception of the one first described) have the usual Chrysomelid form of which the well-known Colorado Potato Beetle may be taken as a type. In Chrysomela pallida, Say, the body is more elongate, approaching the Coccinellidœ somewhat in form. With the exception of Lema collaris, Say, which forms a sort of cocoon among the leaves, they all enter the earth to pupate. A few of the following larvæ have been described by various authors, and are introduced here merely for comparison.

Chrysomela pallida, Say. Body black, elongated, much wrinkled and roughened; the sutures of the segments and the venter sometimes tinged with brown; head and cervical shield polished black; length 8 mm. Lives in communities on poplar. Several of these larvæ entered the earth to pupate June 1st, and the beetles issued about June 19th. (Determination of Dr. Horn.)

Catocala Coelebs Gr.

The fore wings are black with a grayish white subterminal shade. A strongly marked variety of Badia with the fore wings brown, was mistaken for Coelebs by Mr. Strecker, and was the occasion of its reference to Badia. But a sight of many specimens leads me to believe that the true C. Coelebs, with black fore wings, grades into Badia, and is only to be regarded as a variety of it. But this could not have been predicated of the type. The two extremes are exceedingly distinct and different looking.

Exenterella Grote.

I propose this generic term for Exentera Gr.; preoccupied in Insecta. Now that we have Mr. Scudder's work on genera, there will be more certainty about generic names. I notice that Rhododipsa is not included in Mr. Scudder's list. In speaking of the omissions in my review of it, I did not intend that any idea of purposed favoritism should be conveyed by my words. I merely regretted that some authors should have been so fully and others so sparingly represented. Had the proof of my paper been sent to me, I think I should have changed the wording to a simple expression of this regret.

In the mouth of April, 1880, I cut down a willow tree and cut it up into “sled-lengths,” when no traces of borers could be seen. Early in March of the following year, while cutting this wood for the stove, I found it to be infested with the larvæ of some species of longicorn beetle; I placed some of the sticks in one of my breeding cages where it remained undisturbed until the 7th of May following, when I found that nearly all the larvæ had assumed the pupa form. The next examination was made two weeks later, when nothing but perfect beetles were found. From this it would seem that this species requires only one year to complete its transformations.

Upper side dark fulvous, the base of primalies largely black, of secondaries still more, the black area extending to middle of disk, effacing all markings; the spots of both wings outside the basal area as in Chariclea, but the narrow spots on primaries are unusually large, with ragged edges, and the mesial band is heavy and diffused; on secondaries this band is lost in the black ground.

Under side of primaries nearly as in Chariclea, but there is scarcely any yellow at apex or along hind margin, all this area being deep red; a few yellow scales only at apex and in middle of the marginal interspaces, to represent the spots and patches of Chariclea; the submarginal lunules almost lost in the red ground.

My removal from Yellow Springs, Ohio, to New Bloomfield, Pennsylvania, has had the effect of breaking off the line of my entomological work, or at least throwing it into a rather different channel. Among the first results is a notice of the striking difference between the two places in regard to insect depredations. In my experience last year a great part of the time was occupied with fighting insects. The cherry weevil, the potato worm and beetle and the apple worm were the ringleaders; but after them came the blister beetles, the turnip flea, the corn worm, the squash bug, et multaalea. Here, at least during the present, or rather past season, the ravages of all these have been quite insignificant. Foremost stands the potato beetle. As soon as the young plants came up I followed my usual plan of picking them off and dropping them into a tin having a few spoonfuls of coal oil at the bottom. By this means they cause no trouble in crawling out again. Though the season was rainy, and therefore the opposite of the last, yet I found two applications of the poison dust (1 part of London purple and 60 parts of wood ashes) quite sufficient to keep the plants free from the young grubs. I am inclined, however, to recommend the use of plaster instead of ashes in a wet season. It seems to adhere better to the leaves when rain falls on them.