The formerly monotypic genus Mioctenopsylla Rothschild, 1922, was erected to accommodate an unusual ceratophyllid flea collected from nests of the kittiwake, Rissa tridactyla ssp., during the Norwegian Expedition to Novaya Zemlya in 1921. Although it could be assigned to Jordan's “Group C” of Ceratophyllus s. lat., this species, described as M. arctica Rothschild, differed in many remarkable ways from all other species and genera of the group. The spines of the pronatal ctenidium, large and deeply pigmented in all other Ceratophyllidae, are reduced in Mioctenopsylla to short, pale structures that could easily be overlooked (Fig. 7). Other characters of the genus not found elsewhere in the Ceratophyllidae include denticulate dorsal margins to the abdominal terga, numerous minute punctuations on the sterna, and narrow mid- and hind-coxae, as well as distinctive sexual features.

Oligotrophus papyriferae Gagné is univoltine in Michigan. Adults emerge in mid-May and the females deposit small egg clusters on the underside of the leaf near the petiole of paper birch (Betula papyrifera Marsh.). Larval eclosion occurs 1–2 weeks later; there are three instars. The larvae bore into and down the petiole and enter the stem or a bud attending the leaf base. Galls appear in early August. There are petiole-bud and petiole-stem galls, depending on which tissues are infested. Third-instar larvae vacate the galls in late September, work their way into the litter, and construct cocoons in which they overwinter. Pupation occurs the following May. Trees from 2 to 30 ft tall are attacked; lower branches are attacked the heaviest. Large galls kill buds, twigs, and entire branches. Small galls leave deeply indented branch scars and deformed limbs.

On a visit to lake Winnibigoshish, Minnesota, on August 26, 1932, my attention was attracted by numbers of this wasp engaged in dragging the mature larvae of the Notodontid moth, Symmerista albifrons S. and A. over the sandy surface of the broad beach. The lake shore is about 300 feet wide at that place and composed of several distinct levels. The lower areas nearest the water are covered with low growths of willow and poplar, among which the wasps seemed to prefer to bury the paralysed caterpillars. The latter had developed on the oaks in the forest bordering the lake and several were seen crawling on the sand below the trees, presumably seeking places for pupation. The wasps doubtlessly seized their victims on the ground.

Betulaphis viridis is described and illustrated. It is a bright green species that occurs on the upper surfaces of the leaves of Betula pendula Roth and is known only from Ontario.

The Iowa Insect Survey has, for more than ten years, been studying the seasonal and geographic distribution of Iowa insects. The records are card indexed and come from various sources, chief of which is the survey collection made up by frequent collecting trips covering the entire state. In this way at least some preliminary work has been done in each of the 99 counties of Iowa. Many of these counties have been rather thoroughly worked for special groups.

The Scutacaridae are very little understood. Paoli divided the genera chiefly on the basis of presence or absence of ungual hooks on tarsi I and IV. This is patently a superficial and non-phylogenic character. Within a genus all grades of reduction of unguis are to be found so that it is quite conceivable that species without unguis may belong to genera with unguis. Furthermore in each genus one may find, if Paoli's figures are correct, species with dorsal segments, ranging in number from four to six. Yet number of transverse plates, usually regarded as an indication of number of somatic segments, is certainly a more fundamental character than ungual reduction. On the other hand it is quite difficult to determine with certainty the total number of transverse plates in some species. My experience leads me to regard the total number of plates as four, each bearing four bristles. At present this character will have to be disregarded.

The long-expected paper by Dr. Wm Dietz entitled: “Revision of the Tineid Subfamilies, Amydriinœ and Tineinœ, inhabiting North America,” appeared during the writer's absence in Europe, and a subsequent summer's expedition to the West Indies make it impossible to give this important contribution to the knowledge of our American Tinediæ the attention it deserved before early this year.

The two species described below live in the burrows of the common prairie dog.

Saprinus cynomysi n. sp.

Length (apex of thorax to apex of suture) 6-6.2 mm.; width 5 mm. Black, strongly shining throughout.

Head moderately finely and sparsely punctate, the punctures becoming very fine and sparse at middle of occiput. Supraocular stria distinct, extending across the front.

In Entom. Amer., Vol. VI., p. 173, in my description of Euchaetes conspicua there is erroneously inserted: “This insect comes near E. cadaverso, Gr.,” etc., etc. This should read: “This insect comes near E. abdominalis, Gr. It is easily recognized by its conspicuous costal lines. E. abdominalis is a Florida insect, whilst this seems to be the Colorado representative.” Entom. Amer. having caeased to appear, you will confer a favour on me by publishing this in your esteemed paper.

A convenient and efficient method of determining if qualitative changes are associated with changes in density of insect populations is to search for changes in isozyme frequencies (Stock and Guenther 1979). However, obtaining sufficient material for analysis of low density populations presents a problem. We have found that the use of sticky traps baited with synthetic pheromone is an efficient and practical method of surmounting this problem.

Two lists of Canadian Lepidoptera have been published by our Entomological Society; the first one, prepared by Mr. W. Saunders and issued in 1864, contained the names of all the Butterflies, Sphinges, and Bombyces then known to inhabit this country; the next year a second list, prepared by ourselves, was issued, containing the names of species in the remaining families of moths, and some additions to the former list. Since then a number of new species have been captured in this country, whose names may now be added to our lists; great changes have also been made in the generic nomenclature of others, and in some cases the very species has been proved to be erroneous and to require correction.

In attempting to determine specimens of Dicyphus using Blatchley's key (Heterop. East. N. Am. 1926, p. 908) difficulty was encountered and the following key is presented to facilitate the identification of the species occuring in Eastern North America. It has already been demonstrated by Knight (Bull. Brook. Ent. Soc., XXII, 1927, p. 104) that D. notatus Parshley is a synonym of D. vestitus Uhler and that D. gracilentus Parsh. should not be confused with vestitus Uhl.

The fecundity of apple maggot females was significantly greater (P <.05) on apple than on black ceresin wax domes. Eggs/female laid in apple varied from 24.8 to 318.1 and that in domes from 0.4 to 27.5. Mated females did not lay significantly more eggs than virgins and those confined in groups did not lay significantly more than those confined individually. These findings do not concur with those reported in the literature.