The new species described below were contained in a collection of saw-flies recently from Mrs. Annie Trumbull Slosson, and were collected on Mount Washington and at Franconia, New Hampshire. The collection was of interest on account of the number of species it contained which are evidently related to a boreal fauna.

Macrophya mixta,n. sp.—♀ Black, with the following parts white: two spots on the clypeus, the labrum, a spot on each mandible, two spots on the occiput pseudocaudad of the ocelli, a narrow line on collar and tegulæ, the anterior coxæ at apex and a narrow line at side, the middle and posterior coxæ at apex, the trochanters, the distal halves of the anterior femora, the anterior tibiæ beneath, the knees of the middle, all the tarsi except the base of the first segment and the apices of the others, a large spot on the posterior coxæ.

Several Canadian workers have reported various results in the control of the onion maggot, Hylemya antiqua (Meig.), with chemicals applied to the soil surface (Dustan, 1938; Matthewman et al., 1942; McLeod, 1946; Perron et al., 1953; Finlayson and Handford, 1954). In these tests, the date of the first application of insecticide coincided with early oviposition of the insect, the second and third applications following at weekly or ten-day intervals. Satisfactory control was therefore dependent to a great extent on the grower's ability to recognize the beginning of oviposition by the pest in the field. However, many growers find this recognition difficult and poor control often results from the three-application program.

This list follows closely on the third of three previously published articles in the Canadian Entomologist. Mr. C. A. Frost of Framingham, Massachusetts, has checked and supplied me with identifications of all but two of the specimens. His generous interest in determining some of the beetles for which names have been difficult to obtain made this paper possible.

Mr. L. Bruner has kindly identified the following Orthoptera, found at 10,000 feet and upwards:-

Circotettix undulatus Thos. near Micawber Mine, Aug. 6.

Ceuthophilus maculatus Scudd.,♀, near Micawber mine.

The Canadian bees now described were received from Mr. Albert F. Winn; the types are in my possession.

Andrena lucifera n. sp.

♀. Length about 9 mm., expanse 18; black, including mandibles and legs, the antennae black with the flagellum thickened and faintly brownish beneath beyond the base; pubescence of head and thorai very scanty, dull white, the thorax almost nude above, the sparse hair easily deciduous; head broad, facial quadrangle conspicuously broader than long; mandibles ordinary, malar space linear; process of labrum very large, obtusely triangular, shining; clypeus wholly dull, with a minutely granular surface, and sparse punctures; no smooth line, though the middle is slightly elevated: on each side above the clypeus, from the antennae to the orbits, is a broad highly polished area, but the supraclypeal area and middle of front are dull; facial foveae moderately broad, with shining white tomentum; distance from upper end of fovea to lateral ocellus about or nearly as great as width of fovea; below the foveae extend (with approximately even width) below level of antennae, and are separated from orbits by a shining line; cheeks shining, convex, very broad, the upper part strongly keeled behind; third antennal joint fully as long as 4+5; meso-thorax dullish, more shining posteriorly, without evident punctures under a lens, but the microscope shows a minutely tessellated surface and scattered small punctures; scutellum polished, with a median impressed line; mesopleura glistening, rugulose, the lower part produced into a sort of tubercle, and the shining anterior face of lower part having a triangular outline; metathorax dull and granular, but the large basal area triangular, with numerous conspicuous plicae, radiating at sides and a few stronger ones in middle; tegulae reddish brown, anteriorly blackened; wings conspicuously reddish, stigma dark reddish brown, the middle darker than the margins, veins brown; basal nervure falling well short of nervulus; second cubital cell narrow, much higher than broad, receiving recurrent nervure not far from end; legs with pale brown hair, the hind tibial scopa wholly pale, faintly reddish, the hairs on outer side simple; spurs normal, pale reddish; abdomen broad, highly polished, nude above, without bands, the hind margins of the tergites obscurely brownish; under a lens no distinct punctures are visible, but the microscope shows sparse minute punctures; apical depression of first tergite short, of second less than half distance from base to apex, but rather more than two-fifths; apical fimbria pale brown; venter with dull whitish hair.

The following species were collected, from 29th March to 21st June, 1884, along the thirtieth parallel in two neighborhoods, New Orleans and environs, and a district on Bayou la Fourche extending from a little above Napoleonville a few miles south along the bayou. The latter is in Assumption Parish, and at the time of my visit was partially overflowed from the great crevasse of March, 1884. Though many of the species here given are well known to occur in the South Louisiana fauna, I give them all just as I collected them, with the view of noting their relative abundance or rarity, dates of occurrence, localities, etc., all of which together may contribute to make our knowledge of the fauna more complete. But it must be remembered that this is merely a record of how the species occurred to me during my stay, in which I collected only a small part of what might have been taken, could I have given my entire attention thereto. Nearly all those of the N. O. neighborhood were taken between the city and Lake Pontchartrain.

In work on responses of insects to sound at Belleville, by Mr. G. Wishart, a mechanical device was needed to provide a means of slowly revolving a pair of directional light-traps in a horizontal plane on the circumference of a circle 20 feet in diameter. One of the traps was to be used as an experimental trap and the other as a check against the results of the first. A machine was designed, constructed, and put into operation in July, 1961.

In June, 1955, a spider collected at Harrow, Ontario, May 28, 1955, by Mr. Robert Walsh of the Science Service Laboratory there, was sent to the author for determination. This specimen proved to be a mature male of the species, Atypus niger Hentz, commonly known as a “Purse-Web” spider. Subsequently, Dr. Willis J. Gertsch, of the American Museum of Natural History informed me that several years. ago he determined a female of Atypus niger found at Grimsby, Ontario (1). This specimen was collected on July 12, 1942, by Wm. L. Putman, of the Science Service Laboratory, Vineland, Ontario. Apparently Mr. Putman's specimen represents the first of this species to be taken in Canada. I am indebted to Dr. Gertsch for his kindness in making this information available for use at this time.

Odontoxiphidium, gen. nov.—Allied to Ziphidium, from which it is probably derived. Distinguished from that genus by the form of the anal cerci of the male, which are elongate, straight, with the lateral tooth reduced in size, and an additional tooth upon the dorsal side near the base; and, in the type, by the form of the pronotum, which is sub-sellate and prolonged backward, covering the base of the abdomen both above and on the sides, in correlation with the absence of flight-organs. The type is O. apterum, described below.

Specimens of a nearly black geometric larva which afterwards proved to belong to this species, were taken last year on the 15th of July on currant and gooseberry bushes, on which they were feeding. They fed on the foliage of the black currant as well as of the red, and in fact seemed to prefer it.

When first taken they answered to the following description:

Length 45 in. Body tapering a little anteriorly, thicker on middle and hind segments.

The faunæ of high altitudes always posses a peculiar interest by virtue of the light they throw on problems of geographical distribution, and especially the distribution in ancient times of what is now a strictly Arctic and Alpine fauna. For this reason, the following lists of species, fragmentary as they are, may be of some value as a contribution to our knowledge of the Alpine fauna of Colorado, and for comparison with Arctic and Alpine faunæ in general.