This is the species referred to in the first Faper on the parasites of Archips cerasivorana (Can. Ent., Vol. LXXXV, No. 1, pp. 19-30) under the name Zenillia blanda. The genus Eusisyropa was created by Townsend (Smiths. Misc. Colls., Vol. 51, p. 97, 1908) with blanda O.S. as type. In it he also included boamiae Coq.. Aldrich and Webber (Proc. U.S. Nat. Mus., Vol. 63, Art. 7, 1924) placed these in Zenillia R.-D. but most workers agree that they collected a very heterogeneous assemblage of species under this name. As will be explained later, the efforts to subdivide the group on adult characters have not been entirely satisfactory. It seems best to use the restricted genera available until the matter has been studied in detail.

Epinotia medioviridana (Kft.) (1908) is represented by very few specimens in any collection; there are two in the Canadian National Collection: a paratype (one of the six originally described) and a specimen from Tuxedo, N.Y. The species has been collected at Ottawa, which is its type locality, and in western Pennsylvania, but until now nothing has been known of its life history. During the summer of 1951, five last-instar larvae were collected from flowering raspberry, Rubus odoratus L., at Meach Lake, Que.; three were preserved and two reared to maturity. The following description has been obtained from the three preserved larvae and the two last-instar skins.

Wireworms are considered among Europe's most destructive insects, particularly Agriotes lineatus (L.), Agriotes obscurus (L.), and Agriotes sputator (L.). These species have been introduced at certain isolated localities on the East Coast and the first two on the West Coast of Canada. They are known to be particularly widespread in Nova Scotia where they and native Agriotes mancus (Sav) cause cansiderable crop damage.

In the two years which have elapsed since I last wrote (Martin, 1950) of the potential uses of systemic insecticides, a deeper knowledge of the properties of these materials has become available to provide a sounder basis for their practical employment. A wide use of these materials has so far been hindered by scant information, particularly of the risks of harm following the consumption of treated food crops plants. Poisonous residues of the older insecticides which, by accident, remain on the plant surface are largely removed in the usual processes of preparation for the table such as washing, peeling, or discarding the outer leaves. These precautions fail with systemic compounds which not only pass into the plant tissue but which tend to accumulate in the storage organs and in the tenderer new growth, the very parts of the plant which serve for food. Clearly then an accurate and complete knowledge of the fate of the poisonous systemic insecticide must be available before its use on food crops can be recommended.

During the third week of July, 1952, adults of the tarnished plant bug, Lygus lineolaris P. de B. [–L. oblineatus (Say)], suddenly became very numerous in a field of young cucumber, variety straight Eight, near Ottawa, Ontario. The insect fed voraciously, attacking the tender, terminal growth of the vines. Little distortion of the foliage resulted, but numerous holes appeared in the leaves when they expanded.

Musca domestica L., the house fly, has hitherto been the only species of the genus definitely known to occur in North America. West (1951) wrote: “This paucity of species in the New World is somewhat strange…it would not be surprising if one or more additional representatives of the genus Musca should sooner or later put in their appearance on the American scene.” An authentic record of a second species, M. autumnalis Deg. [=M. corvina Fab.], is therefore of considerable interest.

Since 1934, when studies of aphids infesting potatoes were begun in New Brunswick, it has been observed that a large number of potato aphids are attacked by parasices each season. More attention was given to parasitized aphids in 1950 than in previous years, in a study of parasitism as a factor in aphid control. In this paper are recorded the parasites reared from aphids collected on potatoes and other hosts in New Brunswick in 1950.

Alate Viviparous Female: Body, legs, antennae, and cornicles bearing moderately long setae, but not conspicuously hairy. In cleared specimens, the following parts are dusky brown: head, thorax, cornicles, cauda, coxae, rostrum and bases of the femora; a very short basal portion, and the distal half of the tibiae; tarsi; antennal joints I, II, VI, and distal portions of III, IV and V. As in many other species in this genus, there are four longitudinal rows of small brown spots dorsally on the abdomen, extending from the thorax to the area between the cornicles, and two rows laterally, one on each side, composed of somewhat larger brown areas around the spiracles. Remainder of body and appendages clear. Wings hyaline, with media faint and twice-branched. Antennal sensoria, III 5(4-6); IV(1-2); V 2. Ocular tubercles present.