Upper side fulvous, obscured by brown at bases of wings; the discal area of each wing lighter than elsewhere; the black markings rather heavy ; the marginal lines more or less confluent ; the silver spots of second row indicated on upper side by oblong spots of a pale color.

Under side of primaries pale orange-fulvous at base, and in the Pshaped spot of cell; also along the branches of median; rest of wing pale buff, except hind margin and apical area, which are ferruginous ; on the sub-apical patch two silver spots, and the four or five uppermost submarginal spots are silvered.

On 2 April 1986, while removing an accumulation of mosses from the roof of a covered picnic table near a home on Brookfield Road, St. John's (Fig. 1), several hundred larvae (leatherjackets) of the European crane fly, Tipula paludosa Meigen, were found overwintering in the moss between the slots of the asphalt shingles (Fig. 2). During the period 1971–1985 a heavy growth of mosses had become established in the slots between the shingles. Sufficient organic matter, together with particles of soil and sand, had accumulated in these slots to support the mosses, which gradually spread outward to the flat surfaces of the shingles (Fig. 1).

Dioryctria reniculella may be occasionally found in abundance feeding on cones and foliage of spruce in Quebec. In this paper, the life history, habits, and description of immature stages as yet unreported in the literature are presented, along with short notes on populations and natural control organisms.

The following contribution to our knowledge of the Ichneumoninae of the boreal parts of Canada and of Alaska is based mainly on material obtained by the Northern Insect Survey, which is a co-operative project of the Canada Department of Agriculture and the Defence Research Board, Canada Department of National Defence.

The contribution brings forward 12 new species and subspecies 3 of them being represented by both sexes, 9 by the female sex only. Some arctic species already named before or regarded as holarctic elements will be treated in a separate publication.

The season was a very unsatisfactory one for Lepidoptera in my neighbourhood, so far as quality was concerned, and yer several new species turned up—new, that is to say, to this district—and there were sundry other occurrences which I think may be worthy of record.

The number of molted head capsules of Pissodes nitidus is four, but the frequency distribution of the head-capsule widths and lengths of the weevil larvae do not always show four clear separations. It is necessary for more reliable determination about larval instars to count the molted head capsules in the larval gallery.

All of the following species were determined by Dr. P.L.R. Uhler:- Lioderma ligata, Stal.

In coitu on mesquite (P. juliflora), July 14. It was found numerous on Chinese cabbage on college farm July 16.

Mozena obtusa, Uhler MS.

Taken in July on Prosopis juliflora. In coitu July 8.

Black, the antenn♀, palpi, labella and front corners of the first two abdominal segments pale yellow, the last segment and hind edge of the preceding orange yellow. Front at narrowest part one-fifth as wide as either eye, the upper three pairs of frontal bristles much larger than the others, one pair beneath insertion of antenn♀, facial ridges strongly diverging below antenn♀ slender, almost as long as the face, the third joint five times as long as the second.

In the summer of 1980, gypsy moth populations were monitored in 13 sparsely infested forests in southwestern Quebec; counts of living and dead larvae and pupae were made on 1,870 trees representing 28 deciduous and one coniferous species. Contrary to our null expectations, the proportionate numbers of pupae compared with larvae on the various host species were not equal. Hosts more preferred by larvae were less preferred by pupae, and vice versa. For example, pupae were disproportionately abundant on host species like Acer pensylvanicum L., Carya ovata (Mill.) K. Koch, and Juglans cinerea L. which are not generally favored larval hosts. Conversely, favored larval hosts like Quercus rubra L. and Ostrya virginiana (Mill.) K. Koch carried lower numbers of pupae than expected from the numbers of larvae feeding on them. Such differential utilization of host trees by larvae versus pupae, which can arise either from host-dependent differences in larval mortality or from late instar migration between hosts, may contribute to maintaining the broad polyphagy of gypsy moth larvae.

Developmental time of Brevicoryne brassicae (L.) was measured in the laboratory at 8°, 13°, 18°, and 23 °C. Time from birth to adult was 126 degree-days above a threshold of 6.7 °C (°D6.7). Age-specific fecundity and longevity was measured at 13°, 18°, and 23 °C. The temperature thresholds for birth and physiological death rates were not significantly different from 6.7 °C. Fecundity averaged 40.7 nymphs/female and did not vary with temperature or frequency of removal of nymphs. Peak reproduction occurred 75°D6.7 after the molt to adult. Although the time of peak reproduction did not vary as a function of fecundity, height of the reproductive peak and length of the reproductive period did, but not in a 1:1 proportion. Age-specific fecundity was described as a polynomial function of aphid age in °D6.7 and fecundity. Longevity did not vary as a function of fecundity. All aphids survived until after the reproductive peak, so the sum of the age-specific fecundities very nearly equaled the net reproductive rate. Measurements of developmental time, fecundity, and longevity of B. brassicae in the field were 1.3, 0.66, and 1.2 times the respective laboratory value. Consecutive measurements of developmental time and fecundity showed that the former increased and the latter decreased during the season. The consequences of variable developmental time, fecundity, and age-specific reproductive pattern to the quantitative representation of population growth rates are discussed.

Horse flies of the genus Tabanus are among the most persistent and annoying of the blood-sucking pests affecting Utah livestock. Tn many areas of this state they are particularly troublesome to cattle and horses during much of the summer and fall. The intermittent feeding habits of the Tabanidae at once mark them as potential vectors of disease. This study has been undertaken as a part of the investigation of the role of blood-sucking insects in the transmission of equine encephalomyelitis.

Individuals of Copidosoma innocuellae n. sp. are described. Many specimens were reared from larvae of Anacampsis innocuella (Zeller) (Gelechiidae), collected in Canada from New Brunswick (type-locality), Quebec, many localities in Ontario, and Manitoba.