During a visit to Professor Fernald, in Amherst, Mass., last spring, he showed me a Nepticula, bred from Apple, which he had described in manuscript as a new species, but which he afterwards had suspected to be Micropteryx pomivorella, Packard.

From reading the description and life-history of packard's species, I felt sure that it was a Nepticula and presumably the same as Professor Fernald's species, and a week after, while studying the collection in the Agassiz Museum, Cambridge, I obtained definite proof that we were right.

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.

Trioza Kobelei, sp. n. — The figures of the tegminal neuration and of the male genital segment in profile, and the following brief description, will distinguish this destructive form from the three other North American Trioza species. Head and thorax varying from dark fulvous to blackish polished, shining. Antennæ testaceous, exceptapically. Tegmina and wings hyaline, colourless, nervures brownish. Femora dark fulvous or blackishbrown, tibiæ and tarsi testaceous, except the apices of the apial tarsal segments. Abdomen smooth, polished and shining, black, with a dark bluish-green gloss.

The excellent monographic studies of Brennan (1935) and Stone (1938) on Nearctic Tabanidae and the even more recent catalog of Philip (1947) has placed the study of this group on a firm foundation. The student of this family rarely suffers from a dearth of material since the abundance of individuals of many species, their ease of preservation and their economic importance lead to the collection of long series. As these series accumulate, it sometimes is found that certain species exceed the limits of variation conceded that species, and in other cases what appear to be new forms, may be separated.

During the summer of 1930, I returned to the north shore of the Gulf of the St. Lawrence and spent three months collecting there. Most of the collecting was done at Thunder River, a village on the mainland opposite the western end of Anticosti Island, and at Bradore Bay, situated at the western extremity of the Straits of Belle Isle.

The effectiveness of felt egg traps to detect oviposition by the cabbage maggot, Delia radicum (L.), was studied under field conditions for cabbage, Brassica oleracea L. var. capitata L. (Brassicaceae), and rutabaga, Brassica napus L. var. napobrassica (L.) Reichenb. (Brassicaceae), in 1994 and 1995. The numbers of eggs laid on traps were compared with the numbers deposited in the soil next to the plant. Also, the incidence of oviposition (i.e., the percentage of samples with eggs) on soil and traps was compared. A total of 5160 eggs was collected from 5208 samples, but just 16% of all samples had eggs. For cabbage, early in the 1994 season, the incidence of oviposition in soil samples was double that on traps, and the number of eggs per sample was greater also. Oviposition incidence and the number of eggs per sample during the rest of the summer were similar. In the 1995 cabbage trial, the incidence of oviposition early in the season was again higher in soil samples than on traps, and there were fewer eggs per trap than per soil sample. For rutabaga, the number of eggs was similar using both methods early in the second generation, but from mid-August there were more eggs per trap than per soil sample. The incidence of oviposition in the rutabaga trial was similar on traps and in soil through most of the experiment. In this study, felt traps did not adequately detect the timing of cabbage maggot oviposition in the critical early season.

The genus Synosis Townes, 1959 (Hymenoptera: Ichneumonidae: Metopiinae) currently comprises 18 described species. A redescription of the genus is presented and three new species are described and illustrated: S. diaguita new species, S. nigra new species, and S. zezei new species. Two previously known species, Synosis rubinus Alvarado and Rodriguez-Berrios, 2013 and S. townesi Alvarado and Rodriguez-Berrios, 2013 are recorded for the first time in Ecuador. The genus is recorded for the first time for Ecuador and Argentina. An identification key to the New World species is presented.

Tuberculatus (Toltecallis) subg. nov. is characterized by the spiculation of the dorsal hairs of nymphs and by the basal pigmentation of the tibiae which differs from that of T. (Pacificallis). Three species are classified in the subgenus: T. (T.) mexicanus sp. n. (type of subgenus), distinguished by its long processus terminalis, T. (T.) garciamartelli sp. n. with spinal processes restricted to the two first abdominal segments and with short and thin spinal hairs on the embryo, and T. (T.) spiculatus Richards with processes on tergites I–IV and very long spinal setae on the embryo; the subspecies rebecae subsp. nov. of the last species has siphunculi and apical rostral segment longer and narrower at the base than in spiculatus s. str.

The viviparous winged form, the embryo, and the alatoid nymph are described. The sexual forms are unknown. All the species live on Quercus in the central part of Mexico between an elevation of 2200 and 2700 m.

The following list of Micro-Lepidoptera taken in the Province of Manitoba, is published for the purpose of recording the distribution of species, as well as an incentive to the collectors of the locality to make more than ordinaly efforts to add to the number. The work that has already been done is most gratifying, and compares very favourably with local lists of many of the States, from which a great deal mor would have been expected.

Mitosynum vockerothi, a new genus and new species of Staphylinidae, is described from Kouchibouguac National Park, New Brunswick. The genus is compared with the genus Syntomium Curtis (Oxytelinae: Coprophilini). The phylogenetic position of the genus is considered based on Herman's (1970) study of the phylogeny of the genera of the Oxytelinae.

Aquatic biologists have long been familiar with the beautiful and interesting larvae of Chaoborus which are found in most of our lakes. Their peculiar habit of migrating daily krom the bottom of the lake to the surface and back again is well known. The data reported here are concerned not so much with this interesting habit but rather with the general ecology of the species.

Until now this family has been known only through one species Nymphomyia alba Tokunaga, found in Japan in 1932. The specimens taken in New Brunswick and shown in the exhibit differ strikingly from Nymphomyia and represent a new genus.

With one exception, the thirty-eight individuals recovered from collections to date, were taken by fine-mesh screens set in the rapids of a small stream. These had been placed to catch casualties among aquatic insects drifting downstream following spraying of the adjacent forest with DDT. The spraying operation was of an experimental nature, carried out cooperatively by Forest Protection Limited, the Chemical Control Section, Canada Department of Forestry and the Fisheries Research Board of Canada.

A colony of Leptocera caenosa (R.) was self-sustaining for 60 generations in a variety of organically rich media. With a wet larval medium of green grass meal and expanded mica in equal volumes at 17 °C the life cycle was completed (female to female) in an average of 31 days (egg stage, 2 days; larval and pupal periods, 13 days each). Green grass meal was superior to a standard cereal house-fly medium (CSMA) and legume leaf meals; a low coumarin strain of sweet clover was superior to a high coumarin strain. A non-sterile nutrient solution was also successfully used. In one sample of fresh alfalfa meal the pupal period was about 2.5 times longer than that in grass meal, possibly because of the presence of an estrogenic hormone.The species survived a 3-month exposure to 7 °C but not 1.5 °C, indicating that it could not readily survive out-of-doors during the winter in Saskatchewan.

The seven known species including two new species of Protearomyia are described and keyed: obscura (Walker) and mallochi n. sp., from southern Chile; cordillerensis McAlpine, martinia McAlpine and tricopleura n. sp., from temperate North America, and nigra (Meigen) and greciana McAlpine from Europe. Lectotypes are designated for cordillerensis and greciana. Male and female terminalia are figured where possible; female of martinia and male of trichopleura are unknown.