The species, integrum Eaton, described from material collected in Washington and Oregon states, was designated by Eaton as the genotype of Cinygma. I have already (1926, Can. Ent. LVIII, 302) recorded the capture of adults of this species in the Coast range of British Columbia and at the time expressed some doubt as to whether all the species at present included in this genus were strictly congeneric. Since nymphal structures have been recognized by a number of recent workers as of great importance in furnishing distinguishing characters in the Heptagenine genera it was with considerable interest that I discovered among material collected in the Hope Mts., B. C. in 1932 by my assistant, Mr. A. N. Gartrell, a bred female adult of integrum, together with its nymphal exuvia, preserved in alcohol. A study of this exuvia soon convinced me that in the nymphal gills and mouth-parts there are excellent and in part unique structural details which should at once establish not only the validity of the genus but also its limitations and position in the group of allied genera.

The following descriptions of five sawflies of the genus Neodiprion are presented at this time in order that the names may be available for use in economic literature. Some of the specimens have been received from Dr. J. M. Swaine, Associate Dominion Entomologist, Entomological Branch, Department of Agriculture, Ottawa, Canada. All of the species are known to defoliate coniferous evergreen trees in forested areas in Canada.

Antennae light fuscous; distal end of the basal joint of antennae, palpi, head, patagia, thorax, and ground color of fore wings yellowish wood-brown. Terminal joint of palpus with a broad fuscous annulation. Fore wings variously marked with blackish fuscous; near base a fuscous patch which fades distally and becomes fused with ground color; a large fuscous discal spot which in some specimens (females) is almost black which gradually fuses with the ground color on all sides; before this, two small black spots; beyond, one black spot; costa somewhat spotted with fuscous; from costa near apex around termen to the inner margin 11 small black spots. In some specimens these are somewhat obscured. Cilia light grayish fuscous tipped with buff. Hind wing light fuscous, darker toward apex. Cilia light grayish fuscous, buff tipped. Abdomen yellowish wood-brown below with two fuscous longitudinal stripes ; above, brownish fuscous, some scales tipped with the light yellowish wood-brown. Legs yellowish, wood-brown; above more fuscous, tarsi especially so; spurs fuscous.

In a collection of Mecoptera belonging to the Canadian National Museum and sent to me for determination by Dr. McDunnough, I was much surprised to find several specimens of an undescribed species of Boreus. In as much as new species of North American Mecoptera are now rarely encountered and especially since this particular species is a most unusual one, I consider it justifiable to devote a separate paper to the description of this insect.

In the “Canadian Entomologist” for September, 1915, T. D. A. Cockerell writes of Phyciodes ismeria (gorgone Hbn.) that the “species evidently hibernates as a larva.” Observations in Manitoba have shown this deduction to be correct. A colony of larvae discovered on Helianthus scaberrimus Ell. (rigidus Desf.) in the Aweme district, July 20, 1928, hibernated in that stage, and one specimen successfully completed its development the following spring.