This subfamily includes the common field and ground circkets, and is represented in Ontario by two genera, Nemobius and Gryllus. These may be separated as follows:

a. Small species, last joint of maxillary palpi twice as long as the one preceeding; hind tibiæ furnished with long movable spines; first joint of hind tarsi unarmed above, or with one row of small teeth. Nemobius.

Third joint of antennæ equal to 4+5, or very nearly. 1.

Third joint of antennæ longer than 4+5. 4.

1. Scopa ample, compact, the hairs long and curved up. 2.

Scopa with the hairs short and straight. 3.

General colour very dary blackish brown, with a sight purplish tinge, quite smooth and somewhat shinny. Ordinary marking jet black, but not conspicuous, owing to the similarity in shade with the ground colour. The distinct black, more or less solidly filled claviform and the yellow-filled reniform are the most conspicuous features in teh maculation. Basal line present through fragmentary, represented by two blackish dots on costa, in one speciment with some whitish scales between them, forming a more or less evident dot, in the other speciment this si not so noticeable, the line is also evident between the median and submedian veins, though in a lighter, diffused sort of way.

I have on several occasions had specimens of both the European and Oriental cockroaches sent me by fruit dealers, who had found them on bunches of bananas, and there was a report of the capture of a large scorpion, said to be over five inches in length, on a bunch at Spokane, Wash., but the most interesting capture that I have to record is a beautiful freshly emerged specimen of Ceramidia Butleri, Moschler, which I secured here last March. The specimen was sent to the U. S. Museum for identification, and Dr. Dyar writes me that it made a welcome addition to their cabinet, aud cites Guatemala and the Amazons as its habitat.

Chrysops lupus, n. sp.—♀.— Length, 8–9 mm. Face shining yellowis ferruginous, callosities outside of suture, and cheeks black. Antennæ black, base of first joint fulvous. Front grayish pollinose, callesity black. Thorax black, with the usual glaucous stripes. Scutellum black. Abdomen yellow, first segment with a black spot wider anteriorly and connecting on second segment with a subquadrate spot deeply emarginate posteriorly, which does not attain the posterior margin of the segment.

Amesolytus pictus, n. sp.— Length of body 8mm, length of antennæ 4 mm.; expanse of wings, 13 mm.

Head: Clypeus white, pilose, somewhat mottled in appearance; mouth organs white; upper portions of the head black, except that on either side of the front there is a white line next the eye, and above the eye on either side of white semi-oval patch extending behind the ocelli. Eyes oval, large, protubernat, dark brown with a gloss. Ocelli jet black, Cheek, lower part white; upper part black.

Since any work in this group must of necessity be a review of that done by the late Dr. Geo. D. Hulst, I want to state in this begining of mine, that it is not to be regarded as a criticism.

Dr. Hulst made (for him) some curious errors, which will be noted later on, but the immense work he did in untangling the synonymy of this variable group, and in his two trips across the ocean to study the types, cannot be overestimated, and by it mine is rendered easy.

The Broad-leaved Aster (Aster macrophyllus, L.) grows in patches of considerable size in the woods around Levis. In the month of June, 1902, I noticed that many of the large ground leaves of the plant were folded over from both sides and crinckled. On opening one of them I found that a larva had truned the leaf into a cool and pleasant tent for itself, and was feeding upon the parenchyma of the leaf.