Aparity is that development in reproduction wherein the adult mother retains the eggs instead of laying them. The result is that the young hatch in the mother's body and are forced to feed on her tissues until they have eaten their way out. Such a condition might be construed as parasitism on the adult mother. Since the phenomenon is brought on by the parent and is forced upon the young, it can hartdly be called parasitism, unless the old term obligate parasite is given a new meaning.

The species here described somewhat superficially resembles Staphylinus cinnamopterus Grav., yet appears distinct and to be hitherto uncharacterized. In admiration of Professor J. H. McGregor of Columbia University, and in appreciation of kindnesses tendered me, I propose to name this new form:

Staphylinus macgregori n. sp.

Habitus nearly as in cinnamopterus but larger in size and rather more robust; piceous, the elytra fusco-ferrugineus, the legs fulvo-ferrugineus ; pubescence inclined, on the head, thorax, and elytra of a rusty hue and with few erect, brown setae, on abdomen fusco-piceous pubescence intermixing with fewer rusty-colored hairs and an abundance of dark setae; anterior tarsi broadly dilated in both sexes ; head slightly narrower than prothorax, widest at basal fourth thence gradually narrowing anteriorly, hind angles obtusely prominent, punctures round and ocellate throughout, close-set but clearly separated by shining interspaces, sparser anteriorly; mandibles longer and more slender than in cinnamopterus, the two inner teeth much less prominent and more poorly developed; antennae piceous to fuscopiceous, a third longer than head; prothorax but slightly wider than head, truncate at apex, rounded at base, punctures ocellate, more elongate at the sides than those of head and somewhat larger, smaller and more closely set than in cinnamopterus but separated by shining interspaces, the median line evident, polished, but very narrow throughout, in places ill-defined or obliterated; scutellum velvety black; elytra fusco-ferrugineus, longer than wide, very finely but strongly and densely punctate, clothed with a decurved rusty-colored pubescence similar to that of head and thorax but more dense; abdomen obscurely fulvous at tip, piceous, coriaceo-reticulate and very sparsely and finely punctate at sides, with median velvety fuliginous spots suffering intermixture of short cinereous hairs at the sides; under surface of abdomen clothed with sparse, long, depressed, fuscs-piceous pubescence, coriaceo-reticulate, punctures very fine and sparse, slightly less sparsely distributed at sides of segments, the male fifth ventral with a very broad circular and feeble sinuation medially, the male sixth ventral obscurely fulvous at tip and with a broad, rounded, median emargination about one half as deep as long, fifth ventral of female truncate, sixth female ventral rounded evenly and fulvous. Length ( ) 10.0-12.7 mm.; width 3.0-3.3 mm.

On the night of June 4, 1933, we “tied out” seven females of Tropaea luna and by 11 p. m. four of them had found mates.

On June 10 at 1.30 p. m., a male and a female Actias selene emerged from cocoons which we had purchased in New York. The following day two males emerged. Copulation occurred with one of these at 11.55 p. m. The mates separated at 2.30 the next morning and the female began ovipositing at once.

In the course of the preparation of a paper on the Dytiscidae of Minnesora and Manitoba several new species were discovered. As this paper, though finished, cannot be published for some time, it is felt wise to make these species known and the opportunity to add a few others is taken.

The summer of 1933 was spent by Mr. W. J. Brown of the Dominion Entomological Branch in insect faunal survey work on the Gaspe Peninsula, his camp being located on the slopes of Mt. Lyall, near the headwaters of the Cascapedia river, at an altitude of about 1500 ft. A small but very interesting collection of Ephemeroptera was secured, comprising Blasturus nebulosus Wlk., Leptophlebia adoptiva McD., Leptophlebia debilis Wlk., Ephemerella aurivillii Bngsstn., Baetis vagans McD., Iron pleuralis Banks and Iron gracilis Morg. There were further three undescribed species taken which very clearly link up the Ephemerid species of the Gaspe peninsula with those of the Rocky Mountain region; of one of these the nymphal association was discovered. I describe these species as follows.

Crotch, in his Check List of the Coleoptera, 1873, substitutes the name Pseudocistela Cr. for Cistela Fab. of the LeConte and Horn Classification. There seems to have been a doubt about Mulsant's genus Gonodera according to Leng, (Jour N. Y. Ent. Soc., XXVI, 209, 1918) who says “the genus Gonodera Muls. Col. Cr. Pectin, 1856, may cover our species and if so would antedate Crotch's name.” As we have not been able to see a specimen of the genus Gonodera, we are using the above name. Casey, (Annals N. Y. Acad. Sci., VI, 73, 1891), in his key, groups Pseudocistela with the genus Androchirus as having anterior tarsi “compressed and distorted” in the males. The genus Pseudocistela, however, does not (except brevis which has a slight distortion in the male) have the anterior tarsi compressed and distorted, but normal. Col. Casey's use of the word “distorted” instead of “deformed,” used by LeConte and Horn seems advisable.