Palpi moderately long, porrect with third joint slightly downcurved, pale creamy, clothed with closely appressed scales. Antennae thin, dark. Head and collar pale creamy with a black spot on collar behind each eye. Thorax whitish with a slight greenish tinge, the patagia heavily shaded with black at base. Abdomen light creamy-ochreous. Primaries with light greenish ground-color, sprinkled slightly with white in the basal and terminal areas and heavily shaded with this color in the postmedian band.

Through the kindness of Drs. J. McDunnough and O. Peck of the Division of Entomology, Ottawa, the writer recently had the opportunity of examining the Plecoptera of the Canadian National Collection which were taken in the more northern parts of Canada, Alaska and Labrador. An additional number have been examined from the United States National Museum, by courtesy of Dr. E. A. Chapin.

Male. Head, thorax and abdomen black, covered with long silvery-grey, hair-like vestiture; antennae greyish-brown, strongly bipectinate and composed of eighteen joints; fore tibia without epiphysis; wings uniformly smoky, without markings and sparsely covered with short pile; fore wing with area adjacent to outer side of the upper part of the discal cell sunken, causing this to appear as an elongate, obscure discal spot; costal and outer margins of all wings darker; fringes light grey. Expanse: 19 mm.

Zacotus matthewsii LeC. (matthewsi auct.) is a rare beetle that lives in damp situations under cover in timbered areas in the Pacific Northwest. LeConte, Ann. Mag. Nat. Hist. (4) IV, 1869, p. 373-374, described it from a unique female from Vancouver Island. Horn, Trans. Ent. Soc. IX, 1881, p. 169, listed it from Washington; Leng, Cat. Col. Am. n. of Mex. 1920, p. 68, listed it from “No. Cal.”; Casey, Mem. Col. IX, 1920, p. 290-291, cited specimens from Moscow in northern Idaho and Clackamas Co. in northwestern Oregon; and Van Dyke, Pan-P. Ent. II, 1925, p. 95, from the Bitter Root Mountains of extreme western Montana.

The International Commission on Zoological Nomenclature are now engaged in the publication of decisions taken before the outbreak of war in 1939. These decisions have been embodied in Opinions 134-183 and Declarations 10-12. Of these, Opinions 134-155 and the 3 Declarations have already been published or are in the press. The remainder are ready for printing and will be published as soon as funds are available.

Differs from typical behrii (as represented by specimens from Mammoth Camp, Mono Co., Calif., and by Holland's figure) in the considerably larger size, the much darker color of the underside and the heavy nature of the black spotting. On both primaries and secondaries the postdiscal row of spots is much more pronounced and on secondaries the submarginal row is very heavy and the spots show a distinct tendency to inward, triangular elongation.

In the following list of additions and corrections to my “Annotated Check List of the Macrolepidoptera of Alberta”, published in 1919 by the Alberta Natural History Society, the numbers and names are in accordance with the McDunnough list of 1938, the numbers of the Barnes and McDunnough list of 1917 being given in brackets. Since 1921, seven brief lists of additions and corrections have appeared in the Canadian Entomologist (53: 13-14, 211-212, 55:71-72, 56: 189-191, 60: 117-118, 66: 131-132, 70:260-261).