The following description is offered in order to provide a name which can be used by economic workers for a species of Argyrotaenia which is destructive to spruce foliage, and which has been erroneously regarded as lutosana Clem., following Robinson's misinterpretation of Clemen's species (Robinson, 1869, Trans. Am. Ent. Soc., II, 279, pl. VI, fig. 59). A subsequent paper dealing with the status of several species in this group is in preparation and more complete notes will then be included.

Penultimate Instar. Head width 1.4 to 1.7 mm. Body length about 7 mm. Otherwise similar to ultimate instar.

Ultimate Instar. Head width 1.7 to 1.9 mm. Body about 17 mm. long and 2.5 mm. in width; fusiform in general shape, each segment divided by a transverse fold into a broader anterior and narrower posterior portion; skin closely covered with minute hexagonal pits; ground colour light greyish-brown, with five well-defined longitudinal lines, as follows: a narrow dark grey middorsal line fading posteriorly, two wide grey-brown subdorsal lines, and two interrupted brown supraspiracular lines; oblique outfolded ridges in subspiracular position, separated by deep, infolded wrinkles, which are darkly pigmented and bear irregularly scattered pits, one series of these wrinkles forming a fine interrupted suprapodal line, the venter light brown.

Forming somewhat of a supplement to the article, “Notes On The Effect Drouth Upon The Nesting Habits Of Ants”, in the August, 1941, Canadian Entomologist, are recent brief observations over widely separated areas in North Dakota. The summer of 1941 in this state was unusually wet and was preceded by several season of “normal” rainfall. The conditions constrasted strikingly with those of the drouth years of the early 1930's.

Looks much like a very small melanosticta Wlshm.

Palpi with basal portion of second joint and entire third joint blackish, otherwise largely creamy, especially largely creamy, especially beneath. Head and collar dull brownish. Thorax largely blackish with apical half of patagia creamy, tipped with brown. Primaries with basal and median areas predominantly blackish, overlaid with an admixture of whitish, brown and leaden-colored scaling, the latter most noticeable on inner margin at base.

Among the dragonflies of a fine collection made by Mrs. Dietrich in Mississippi and recently presented to Cornell University, there are two new species of Gomphus that she has modestly asked me to describe.

Since the type male of this species was dcscribed, the following additional material has been determined: Smoky Falls, Mattagami River, Cochrane District, Ont., June 26, 1934, 2 ♂ ; July 1, 3, 1934, 5 ♂, 1 ♀ (G. S. Walley, Canadian National Collection, Ottawa) ; Fort Severn, Hudson Bay, Patricia portion of Kenora District, July 3, 6, 1940, 1 ♂, 3 ♀ (C. E. Hope, Royal Ontario Museum of Zoology, Toronto.