It is during the month of August that one can find the wild bee, Perdita zebrata, nesting in the sandy soil at White Rocks near Boulder, Colorado. The nests are usually found together in groups of eight to ten, one female to a nest. Those studied last summer were located in a sandy field sloping to the south at the base of the cliffs.

During the last three years considerable time has been devoted to the development of a technique for rearing larvae of the European corn borer, Pyrausta nubilalis Hubn., in quantity. This work nas necessary for the breeding of parasites working on the first instars of the borer, such as, Microgaster tibialis Nees which has been reared successfully during the last two years, Eulimneria crassifemur Thom., Macrocentrus gifuensis Ashm., and Apanteles thompsoni Lyle, work with the last three species being still in the experimental stage. Though large numbers of larvae can be produced by employing the methods outlined in this paper further experiments are in progress with a view to reducing the larval mortality, particularly in the second and third instars.

Elongate, entire body and antennae ferruginous, legs a little paler; pubescence very short, yellowish gray, lustre dull from the density of the punctuation.

Head nearly as wide as the prothorax, densely punctate, feebly broadly impressed. Antennae slender, passing by one or two joints the hind angles of the thorax, 3rd joint slightly longer than the 2nd, these together subequal to the 4th.

The excellent results obtained by a study of both male and female genital organs when determining specimens of this difficult genus in connection nith my paper on the “Lepidoptera of Seton Lake, B. C.” have led me to continue this work with a view to clearing up the numerous synonymical tangles in our Canadian species. The variability within the limits of a single species, the poor condition of much of the type material, and the failure of authors such as Taylor, Pearsall and Swett not only to recognize each other's species, but to realize the wide-spread distributiion of the individual species, hare all contributed to produce a muddle of specific names which has been almost impossible to unravel by a mere study of external characters.

This variety of C. hieroglyphica was described by Ball ( I ) as follows:

“Somewhat smaller than the preceding. Shining black, a few of the white markings of the typical form persisting, as follows : the margins of the clypeds, the genae, a line below the margin of the pronotum, the circle around the apex of head, a line against the eye, and the marking of the scutellum. Often there is part of a median line on vertex and a pair of slender lines running from the inner corner of the eye back across the pronotum to the light margined claval suture.”

While making an “auto” trip around the Gaspé Peninsula (Province of Quebec) in the summer of 1928. I encountered a swarm of dark-winged insects which I at first took to be may flies “dancing” over a bridge across a river to the west of Chandler—a town on the south shore, well out toward the eastern end of the Gaspé Peninsula. Stopping the car, I descended to inalte a few “investigational” sweepings with my net, and to my utter amazement discovered that I had captured a net full of males of the rare and much-sought (because of its primitiveness) “cranefly” Pratoplasa fitchii, O.S., a member of the superfamily Psychodoidea.