This is one of the most beautiful of our Sphinx moths, a rare as well as lovely creature, and an object highly prized by collectors. It is found throughout the northern United States and occasionally in Canada, but is no where very common.

EGG.—Long, narrow, fusiform, thickest in the middle, tapering about equally to either end ; the two ends nearly equal, small, blunt, the upper one rounded ; the sides marked by many low, narrow, longitudinal ribs, about 30 in number ; in shape much resembles egg of Colias Philodice, but the ribs are more numerous and less prominent, and there are no cross striæ. Color, when first laid, greenish-yellow; after a few hours turning to red. Duration of this stage in midsummer 2 to 3 days.

Egg.—Similar to egg of Clyton; nearly spherical, flattened at base, marked by 18 or 20 slightly prominent vertical ribs, and by many fine equi-distant striæ ; color yellow-green. Duration of this stage 6 to 7 days.

Young Larva.—Length .8 inch; cylindrical, tapering from segment 3 ; pubescent : color pale green, translucent; head twice as broad as next segment, sub-globose, bilobed, the surface thickly pitted with shallow excavations ; color shining yellow or ochrey-brown.

Egg.—Globular, slightly flattened above, more decidedly so below; lower half smooth; upper half deeply grooved, the interspaces rounded and marked with fine transverse impressed lines ; whitish, the upper half sometimes dotted with dark brown ; transverse diameter nearly ½ mm. [The top of this egg closely resembles that of the unarmed Rustic (Agrotis saucia) figured in Riley's 8th Report, page 37, fig. 24.]

Egg—Spherical, a little flattened at base, .06¼ inch in diameter, pale ochre with sometimes a greenish tinge, at others inclining to orange. Duration of this period six days.

Young Larva—Length .11 inch ; the body covered with tubercles from which project small spines; color dark brown, the tubercles on all but the first of the anterior joints a little lighter, joints 6 and 11 straw color. Duration of this period three days.

This is the largest of our Elaters or “spring beetles,” and is found with its larva in the decaying wood of old apple and other trees. The beetle, fig. 7, is about an inch and a half—sometimes more—in length, of a black color, sprinkled with numerous whitish dots.

This is a stout, hairy beetle (fig. 1) which makes its appearance early in spring, usually towards the end of April or beginning of May, flying about in open fields and about the borders of woods, with a loud buzzing sound, resembling that of a bumble bee. It belongs to the flower beetles, most of whom live on pollen and the honey of flowers, and are fond of sweets.

Egg.—Flattened-globular or button-shaped, sometimes with an impressed spot in the centre of the upper side ; upper part grooved, grooves narrow, interspaces roughened ; milky white ; transverse diameter about ½ m. m.

Larva.—First stage : Body deep green, two dorsal, a subdorsal and stigmatal white line, the latter the most distinct ; piliferous spots green, usually tipped with black, each bearing a short black hair; venter deep green, unmarked; head pale green. Provided with only 12 legs.

I have been requested by Mr. Edwards, who has presented to the Association an interesting and valuable paper, “On the Length of Life of Butterflies,” to supplement it with some remarks on the Life Duration of the Heterocera.

The period of time passed by insects in their perfect stage, is an item in their history to which, so far as I know, very little attention has been paid.

To the Members of the Entomological Society of Ontario.

Gentlemen,—While Entomology may be said to deal with small things, the abundance or scarcity of the tiny creatures called insects involves great issues. The truth of this statement has been illustrated forcibly in several directions this year, notably in the case of the Angoumois wheat moth, which has played sad havoc among the stores of corn and wheat in granaries in the South-western States.

In Butterflies of N. A., Vol. 2, Part 8, 1879, I gave the history of Arthemis, and stated that it was single-brooded ; that the first butterflies of the season appear in the Catskills about the end of June; that they are abundant during July; that the eggs are laid last of July and early in August; that the larvæ from these eggs pass two moults and then go into lethargy in cases of their own construction ; that they come from these cases in spring and moult twice before chrysalis.

The description of this moth on page 7 of this volume was drawn from a single female specimen and that not in good condition. I have this season secured fresh examples of both sexes; from these I note some additions and corrections to the previous account.

Mr. R. H. Meade has kindly examined the N. American Anthomyidæ of the Museum of Comparative Zoology in Cambridge, forwarded to him by the Baron von Osten Sacken. The collection was returned last year by the Baron to the Museum. The species are separated carefully and accompanied by a list giving the genera and species, the latter not named except when identical with European species.

In this communication it is my purpose to record such of my observations on some local species of the “clear-wings” as it is deemed are real contributions to our knowledge of the group. I shall say more or less about the following species : Aegeria tricincta, pini n. s., pictipes, acerni, pyri, tipuliformis, exitiosa and Trochilium denudatum. There are other species known in our fauna, but these only have been encountered in the fields.

Tetanocera clara Lw. Mass., Conn. Specimens of this species with typical frontal markings, have the posterior transverse vein nearly straight and perpendicular, as in valida. In a single specimen there is an incomplete brownish-black abdominal stripe, interrupted at the incisures.

The species belonging to this interesting family have received very little attention from Entomologists generally, and considering the extent of the North American fauna, comparatively few species have been described. Of these almost nothing is known of their habits and development.

Gelechia Chambersella.—In some notes on the larvæ of certain Tineids, published in Vol. vi., No. 12 of the Canadian Entomologist, I referred to an interesting species found on Ambrosia artemesiæfolia, which I proposed soon to describe under the above name. The description was indefinitely delayed by a vexatious accident by which I lost all my perfect specimens.

Eudamus Electra, n. sp.

Size of small Nisoniades Juvenalis. Primaries narrower than in Eudamus Pylades Scudd. ♀, more rounded on the costa, and more oblique on the hind margin. Secondaries rounded, not prolonged at the anal angle as in E. Pylades, nor excavated opposite the cell as in most of the Nisoniades.

General color dark brown, approaching that of E. Pylades ; the fringe concolorous with the terminal portion of the wings, a little paler at their tips.

Egg—Cylindrical, one half higher than broad, flat at base, tapering very slightly from base to about three fourths the length, then conoidal, the top flattened and a little depressed; marked by 14 vertical ridges, straight, narrow, not very prominent, and extending from base to the middle of the cone ; below the cone are horizontal striæ, which with the ridges enclose long, rectangular spaces ; there are nine tiers of these, each space roundly excavated; above the base of the cone are similar spaces in one tier, but they are higher and more nearly square and more deeply excavated ; next these is a tier of seven cells, irregularly pentagonal; the flattened top is composed of three concentric rows of small spaces, the outer one largest, and this and the next formed of pentagons; the inner row is made of rhomboids with the micropyle in the centre ; color yellow. Duration of this stage 3 days.

Egg—Spherical, a little flattened at base ; color greenish-yellow. Duration of this stage four to five days.

Young Larva—Length .1 inch ; near the end of the stage .28 inch, and then cylindrical, greatly thickened from 3 to 6; after 6, tapering to 12, then thickening to end, the back and sides after 6 a little incurved; 2 has a thin square ridge and on each curve of same a thick fleshy process, longer than others on body, thickly beset with straight hairs; there are two rows of similar processes, sub-dorsal, smallest on the narrow segments, colored as the segment they stand on, those on 12 and 13 considerably larger than any others except on 2 ; besides the subdorsal rows, are two dorsal, running the whole length of body, and one row on side, another along base ; all these are small, simple tuberculations with hair on end; color of body brown-yellow marked with white ; a white band, not very clearly defined, especially on its lower edge, passes along the side of segments 3 to 8, turning up on 8 to edge of dorsum, the two extremities there not quite meeting; 12 and 13 are white; under side greenish-brown ; feet and legs same ; head obovoid, a little depressed at top, smooth, shining, color yellow-brown, a shade darker than body. To 1st moult about 4 days.