For many years the authors have been studying the butterflies of the Riding Mountains and of the Sand Ridge and have found numerous forms and races new to science. In a paper read some time ago at a meeting of the Pennsylvania Academy of Sciences, many of these forms and races were described. To make these descriptions available to more students, Dr. J. McDunnough suggested that we use the “Canadian Entomologist”. All the holotypes will be deposited in the Canadian National Collection and the allotypes in the Carnegie Museum.

In working over a collection of Diurnal Lepidoptera sent me by Mr. R. E. Hutchins of the Montana Agricultural College, Bozeman, Mont. for identification I came across a small series of a Euphydryas species which represents an apparently undescribed race or species belonging, according to genitalia, in the nubigena-taylori-editha complex. This group of so-called species, as I recently pointed out (1927, Canadian Entomologist, lix, 156) is distinguished genitalically by the reduced uncus and the shape of the harpe (op. cit. Pl. III, fig. I), these two organs being practically similar throughout the group.

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.

The following notes were compiled while working over a collection of Lepidoptera taken by me in the Yellowstone Park, Wyoming and the Upper Gallatin Canyon, Montana during the latter half of July and the first part of August of the summer of 1928.

The above-mentioned families of carnivorous water beetles are taken up here by request of the Editor and Committee, because of the great difficulty most students of Coleoptera, especially if they are beginners, find in identifying any of their captures in these groups, or even in separating the species with approximate accuracy. It is to be feared that with marry it will prove difficult to follow the tables herewith presented; but they have been made as plain as circumstances will allow, and care has been taken to follow the best authorities in the selection of characters supposed to mark the respective species, so that by diligent attention to details the user of the paper may hope to co-relate his collcction with our lists.

Brachynemurus Coquilletti, new species.

Male.—Length, 33 mm.; expanse of wings, 44 mm.; greatest width of anterior wing, 5.6 mm.; length of antenna, 6 mm.; luteous, marked with dark fuscous; clothed with white hairs, thickly so on abdomen; apical segments of abdomen with some black hairs among the white ones.

Face flat, luteous, bordered above by a pitchy-black band separating the antennae and narrowly bordering them in front and on the outer side; a longitudinal median black line extends from this band almost to the clypeus. Circum-ocular area luteous, except along the anterior portion of the vertex, where it is fuscous, and on the margin next the eye, opposite the middle of anterior joint of maxillary palpiger, where there is a fuscous spot. Clypeus rather short, luteous, on either side anteriorly an impressed spot; above, a few black bristles. Labrum transverse, luteous; rounded laterally and narrowed anteriorly, nearly straight in front, where it is sparsely clothed with light-coloured hairs. Mandibles piceous, black at tips.

Some time ago, through the kindness of Mr. Tams of the British Museum, I was enabled to have specimens compared with the types of dealbana Wlk. and similisana Wlk. and the genitalia of both types examined. The result is a confirmation of Heinrich's placement in his revisioni, dealbana falling to glaciana Moesch. and similisana to bipartitana Clem.

Since the publication of my last contribution on the Massachusetts Cocciæ, in 1899, no iess than 34 other species have been found to inhabit Mass., some of which appear to be of recent introduction and new to the United States; and while the larger portion has been recorded from other States, we have found several interesting new species hitherto not known to science. I have abandoned in part the citation of the geographical distribution and many of their food-plants, as time will not permit me to consult some of the literature. I have included an additional check-list and the Bibliography. In the original check-list several species are listed whose names have since been changed as follows.

In 1944, as soon as DDT became available, laboratory investigation of its possibilities for control of codling moth, Carpocapsa pomonella (L.) was started at Vineland Station. The work was later expanded and the methods improved until the present technique was evolved; this is still unsatisfactory in many respects but is presented to indicate what may be accomplished in a small laboratory with very limited personnel and equipment and at comparatively little cost.