It was my good fortune, in May last, to find a brood of the larvæ of this species. As they were very different from the only description we have seen, i. e., that of Morris in his Synopsis, we herewith give a description of three of its stages. As all the stages were not observed we will begin with the last, as it will by that means be more short. Mature larvæ, 1.50 to 1.75 inches long, color black, thickly dotted with yellowish white. Head slightly triangular, smooth and shining. Head, top of segment next to it, feet and vent, rich reddish brown.

EGG.—Conical, the base flat, the top truncated, rounded, and divided from centre outward into eight or nine rounded, nearly equal, smooth lobes; at the micropyle a deep depression; sides marked by about 15 vertical ribs, low, rounded; the spaces between the ribs a little excavated, and crossed horizontally by many fine striæ; color pale yellow-brown, or luteous. Duration of this stage about five days.

YOUNG LARVÆ.—At 12 hours from egg, length .04 inch; slender, the middle segments somewhat thickest; color green-orange, under side green-yellow, as are the feet and legs; segment 2 is whitish, with a black chitinous dorsal collar in front; head sub-globose, black-brown, shining. Duration of this stage three days.

Egg.—Diameter .035 of an inch, about the same in height; blunt, conical, the base flat; smooth; white, a dull red band round each a little below the middle, which is pretty well defined on its lower edge, but the upper is irregular, sometimes a small red speck on the apex. Duration of this period 10 days.

Young Larva.—Length .08 of an inch. General color grayish white, a purplish red band across each of the following joints, 2, 5, 7 and 12, with a faint row of the same along each side. Head jet black, broader than the body; joint 12 a little elevated; thoracic feet black, the others concolorous with the body; the body sparsely covered with white hairs half the length of the larva. Duration of this period from 2 to 3 days.

In the June number of the Canadian Entomologist, p. 114, there is a paper by M. L'Abbe Provancher, containing descriptions of a new genus, Platysoma, and 7 new species of Canadian Hymenoptera. Six of these new species, Ich. Vancouveriensis, Platysomatibialis, Limneria compacta, Mesoleptus fasciatus, Phylax pacificus and Phylax niger, are from Vancouver Island, and I am under the impression, for reasons which I will now state, that the specimens of these species from which M. Provancher's descriptions were made were from my collection, though no mention of my name appears in M. Provancher's paper.