The following seven species of Tineina were part of a large and well-preserved collection of Microlepidoptera, recently received for determination from Mr. Henry Engel, Pittsburg, Pennsylvania, who has presented the types,together with many other specimens of other species, to the U.S. National Museum.

Perdita Cockerelli, n. sp.—♂. Head and thorax green, finely roughened, metathorax sometimes more bluish; face up to antennæ, including labrum and mandibles, except tips, lateral face-marks running to a point about half way between point of insertion on antennæ and summit of eyes, narrow inferior orbits half way up, scape in front, large spot on turbecles, connected with a spot on prothorax and also with coxal cavity, spot on tegulæ, all of legs except black stripe on rear of anterior and intermediate femora and tibiæ and basal half of all coxæ, yellow; black stripes on front and rear of hind femora connected below, hind tibiæ black, with a yellow stripe in front, flagellum reddish testaceous below; wings milky hyaline, nervures pallid, costa, radius more or less and margin of stigma brownish; tegulæ pallid; pubesecence of head and thorax long, white, abundant on pleura and cheeks, tarsi yellowish testaceous, hind tarsi dark; abdomen brownish black, segments 1–5 with yellow bands narrowly interrupted medially; that on 5 sometimes reduced to two spots; venter yellow, tip dark.

Stegomyia mediovittata, n. sp.— Probosics black, unmarked, palpi black scaled, in the male the bases of the joints white scaled, in the female only the apices of the joints are white; inner side of first antennal joint white scaled, scales of occiput black, a median line of white ones, those on the sides yellow and white.

During the summer and autumn of 1905 severall small collections of mosquitoes were sent to me by Major Hassard, of the Royal Army Medical Corps, and Colonel Loscombe, from the Military Station at Newcastle, alt 4,000 feet, and more recently a number of living larvæ from the same locality, collected by Miss. Maclaverty.

It will be noticed that in the preceding paper on Geometridæ, I have used the Comstockian terms of designating wing-veins. Heretofore these have not been used by any writers on this family of moths; in act, they have been very little used by writers in any family. The reason for this is, not that the system is not a good one, but because it is comparatively new. Most of the older writers have become used to the number system, having employed it in all their previous work, and therefore retain it to preserve uniformity, and perhaps make no effort to familarize themselves with the new dispensation.

During the past summer the Locust Mite (Trombidum locustarum, Riley) has been very common at Guelph, especially on the Red-legged Locust (Melanoplus femur rubrum), but a few specimens have also been found upon the Two-striped Locust (Melanoplus bivittatus). The mite is most generally found attached to the base of the second pair of wings, although it is alos found on the wing itself, and on any other part of the body where it cannot be readily detached by the locust; a favourite position upon the body is between the segments of the thorax and abdomen, and also behind the upper joints of the legs; in such postion their only means of attachment to their host is apparently by theri mandibles.

Of late years there has been a considerable demand for information relating to insects which are found in houses, and which either annoy the occupants by their direct attacks or are injurios to household goods and provisions. It is therefore hoped that the contents of this article will be found of interest and practical benefit to those who have experienced the ravages of these minute insects.

The above-named paper which has lately appeared in the Deutsche Entomol. Zeitschrift (1905, II, pp. 1–56), is of the highest value of American students of the Coleoptera, though in these days of minute subdivision and endless creation of genera and species upon the lightest pretext, it come as a surprise to those who have consluted only our American publications on the subject.

Æthilla Buffumi, sp. nov.—Habitat: Suapure, Venezuela. Expanse, 1.25 inches.

Head and palpi above dark brown, with a few gray hairs; below nearly white. Thorax and abdomen the same above as head; below gray. Antennæ nearly black, with indistinct white annulations at base of each joint. Club, above black, beneath grayish. Legs light brown, with slight white annulations at joints.

452. Rachela Bruceata, Hulst.— Not observed previous to 1898. It appeared in millions in 1902, and in the following year was still more abundant. In those two years hundreds of acres of Populus tremuloides were completely denuded by the larv♀ during June. It appeared to be aided in its depredations by a Tortix, the name of which I have not yet discovered, but subsequent observation brings me to belive that by far the greater part of the denudation was caused by this species.

An inexcusable blunder was committed by me some years ago. On page 791, Proc. U.S. Nat. Mus. XXVI, for 1903, I described an insect under the name Psinidia sclciforns, var. amplicornis. For the word sulcifrons the specific name fenestralis was intended, and should be subsituted throughtout the description.

I am indebted to Dr. F. Creighton Wellman for specimens of two little-known species of Xylocopiæ, collected by himself in Angola. Although they are not new species, they suggest a few observations.

In the Canadian Entomologist, Vol. xxxiv, page 232 (1902), I gave the reasons for adopting hesperidum as the type of Coccus, which adoption caused such radical changes in the classification of the Cocciœ that I am free to say I hesitated to make them in my Catalogue of the Coccidæ of the World, published in 1903. The main difficulty was to give a proper interpretation to the action of Geoffroy, in his Histoire Abrégée des Insectes, Vol. I (1762), where he removed a part fo the Linnæan species from Coccus, and placed them in the genus Chermes, thus using this genus in a different sense from that of Linnæus, the original founder, and placing adonidum, phalaridis was given by Linnæus under the gensu Coccus, in his Systema Naturæ, ed. x (1758), and no one has ever been able to positively identify this insect.

Eutricha Oweni, n. sp., ♂.— Expanse, 70 mm. Thorax, abdomen and fore wings reddish-brown, more or less lightened from an admixture of pale gray or whitish scales or hairs. Fore wings crossed by four lines, one at inner fourth dark reddish-brown, accompanied by a pale inner line, almost transverse, only slightly incurved at costa and inner margin. The dark portion of the line is well marked, the paler portion not so distinct.

In a recent paper on the “Lepidoptera of teh Kootenai District” (page 910), Dr. H.G. Dyar remarks of this species: “No specimens; one from Mr. Cockle's collection. The speciment agrees with two in the National Museum, bearing Dr. Packard's original labels, ‘Boarmia indictaraia, Comp., Walker's type,’ and ‘Boarmia umbrosaria, Hbn., B. gnophosaria, Gn,’ the specimens orginally coming from the Meske and Riley collections. They are males, and show a hair pencil on the hind tibiæ, so I transfer umbrosaria to Cleora, following Hulst's separation of Cleora and Selidosema”.

Palpi and front dark gray, with a plentiful intermixture of brown scales. Thorax dark fuscous. Abdomen above dark gray, beneath lighter gray.

Fore wing: ground colour gray, but almost entirely obscured by blackish-brown scales.

The basal area is darkened by about four parallel wavy fuscous lines; the space between the basal and intradiscal lines is paler and crossed by two dark lines parallel with the basal.