. Bulletin - United States National Museum. Science. 420 U. S. NATIONAL MUSEUM BULLETIN 216. Figures 185, 186. -Localities: 185 (left), Megarhyssa nortoni nortoni; 186 (right), M. n. quebecensis. Field Brook, Calif.; September 1 at Sugar Lake, B. C; September 4 at Kelly, Calif.; September 7 at Glen Alpine Creek, Lake Tahoe, Calif.; September 16 on Gabriola Island, B. C; and "; at Maple Bay, B. C. We have found the species often common in forests of Pseudotsuga taxifolia, on or around logs or stumps of this tree. There are many records of rearings from wood or occurrence of speci
. Bulletin - United States National Museum. Science. 420 U. S. NATIONAL MUSEUM BULLETIN 216. Figures 185, 186. -Localities: 185 (left), Megarhyssa nortoni nortoni; 186 (right), M. n. quebecensis. Field Brook, Calif.; September 1 at Sugar Lake, B. C; September 4 at Kelly, Calif.; September 7 at Glen Alpine Creek, Lake Tahoe, Calif.; September 16 on Gabriola Island, B. C; and "; at Maple Bay, B. C. We have found the species often common in forests of Pseudotsuga taxifolia, on or around logs or stumps of this tree. There are many records of rearings from wood or occurrence of specimens on certain kinds of trees or stumps, but the only suggestion of an actual host association is on the pin label of a female labeled: "Chrysobothris, Corvallis, Oreg., Apr. 9, 1916, W. J. ; The tree species with which the pin labels associate specimens are: Abies concolor, A. grandis, A. lasiocarpa, A. magnified, Picea sitchensis, Pinus contorta murrayana, P. jejjreyi, P. ponderosa, Pseudotsuga taxifolia, and "; This subspecies occurs in the West, except that occasional specimens from the East appear to be assignable to it. It is in coniferous forests in the Canadian and Transition zones. Most adults occur from about June 12 to August 30. Its hosts, as reported in literature, are several species of siricids. lb. Megarhyssa nortoni quebecensis (Provancher) Thalessa Quebecensis Provancher, 1873, Naturaliste Canadien, vol. 3, p. 447; d\ 9 . Types: d\ 9 , Quebec (lost). Biology: Proctor, 1938, Biological survey of the Mount Desert region, vol. 1, p. 406. This is the eastern subspecies. The ground color is light reddish brown, as noted in the key. Specimens (15cf, 349): From Connecticut (Lyme); Michigan. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National
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