If any of the insect host is a proof of high art in nature, and of the beauty of the creator's thoughts, it is most assuredly the fair creature whose name is mentioned above. Allied to families whose members are among the greatest of the insect world, and having cousins and connections surpassing in size and beauty all others of their kingdom in this Dominion, still this moth is as pre-eminent above its fellows as is its namesake–the fair empress of the sky–above the lesser lights that rule the night.

♀.Fore tibiae unarmed; middle and hind tibiae spinose. By the flattened abdomen allied to cupidissima. Fore wings dark blackish brown, with the terminal space paler, somewhat olivaceous. As in exsertistigma, the orbicular is open, triangulate, bloadly pale margined, fusing superiorly with a pale subcostal shade extending from the base of the wing above this spot. Unlike exsertistigma, the orbicular and reniform are black, the ground color of the median space about them being powdered with deep yellow.

This beautiful and well known European insect is now for the first time discovered in this country. I quote Mr. Sainton's description from Ins. Brit., v. 3, p. 187. “Head yellowish white. Face and palpi white. Antennæ white, annulate with fuscous. Anterior wings white, sometimes suffused with golden, with an oblique golden fascia from the base of the costa.

Expanse 40 m. m. Length of body, 18 m. m. Palpi long and slender, the second joint light and contrasting, the third dark, tipped with light. Thorax as usual in the genus. Abdomen cylindrical, with slight white dorsal tufts. Anterior wings uniform dull gray-brown, sprinkled with black atoms; the usual black clear-cut transverse lines are obsolete, the subterminal line only is seen as a black diffuse shade crossing the wings; some basal black markings; ordinary spots black, very distinct, close together; the orbicular a round spot, the reniform a subiunate black mark; a series of black dots before the concolorous fringe.

Egg spherical, .04 inch in diameter, honey yelloW, shiny and smooth as polished glass; laid in straight rows. Larva, when first hatched,one eighth of an inch long, head small and black, body dark brown clothed with ten longitudinal rows of bunches of spreading hairs; dark brown on the sides, dark gray on the back. First moult somewhat increased in size, color unchanged. Second moult 3/8 inch long, dark sooty brown; hair dark brown on the sides, grayish brown above.

I am able to complete the history of M. phaeton, part of which I communicated to the Can. Ent. in Jan'y, 1869, vol. 1, p. 59.

The eggs are laid in large clusters of from 200 to 400 each, upon the under side of leaves of chelone glabra. They are sub-conical, truncated, ribbed on upper half, yellow when laid, but soon turn to crimson. In 19 or 20 days, as Mr. Scudder informs me, they hatch As the eggs found by me (13th June) had been deposited some days, I could not verify that point.

Both sexes of a species of Pachnobia have been collected by Mr. Geo Norman, at Orilla, which I propose to call by the name of orilliana. It is evidently allied to Agrotis hyperborea, which I know only from Milliére's and Herrich-Schaeffer's illustrations. It looks at first sight like a species of Graphiphora (Taeniocampa).

All the tibiae are spinose. The head is sunken, eyes naked, abdomen short. The wings are wide, the male antennae shortly pectinate, serose. The color is not unlike that of Graph. incerta, but more olivaceous.