Smynthurus spinatus, n. sp.

Olive. Head tinted with purple, lighter on the sides, olive around the mouth and eyes; coarsely and sparsely punctuate, punctures light olive, each bearing a white hair. Antennæ purplish, basal joint lighter, as long as the body; apical segment with from seventeen to twenty subsegments. Abdomen fuscous with lighter spots; the apical part with an olivaceus cloud, the remainder fuscous with whitish or olivaceous blotches; on the middle of the back a number of groups or circular white spots, and on the posterior part of each side a row of white spots, varying from four to ten.

A 5-year study of a bivoltine strain of the European corn borer, Ostrinia nubilalis (Hübner), showed that first-generation moths deposited more eggs on early-planted corn, whereas second-generation moths oviposited more frequently on late-planted corn. The second generation was much larger than the first generation and caused the greater reduction in yield, regardless of whether the yields were based on physiological losses or a combination of physiological losses and dropped ears. It was shown that delay of harvest beyond the time that moisture content of the corn was sufficiently low for machine harvesting could result in severe yield losses from broken stalks and dropped ears during autumn storms.

A distinctive new species of Austromenopon from two species of shearwaters, Puffinus kuhlii (Scopoli) and Puffinus leucomelas (Temminick), is described herein. The new species is based on specimens collected from museum study skins and also from material lent to me by Dr. Theresa Clay, British Museum (Natural History) and the U.S. National Museum. I am indebted to Dr. Clay for the opportunity to examine material from the Meinertzhagen collection and to Dr. K. C. Emerson for reviewing this manuscript.

Clothed with cinereous pubescence, which on the dorsulum, face, second, third, fourth and fifth abdominal segments is thinly mixed with black; posterior tibiæ and metatarsi, the later largelym covered with whitish hairs; metatarsus with a broad brush of brown hairs on the apical margin; length about 15 mm … … ignava.

Osmia prunorum, n. sp.

♀.—Length, 9 mm.; shining dark greenish-blue, densely punctured with pale ochreous pubescence. Head subquadrate, face and front so densely punctured as to be cancellate; pubescence thin except on occiput; clypeus punctured just like the front, with no central keel, the anterior margin broadly dark purple, the edge straight and entire, two converging brushes of orange hair projecting from beneath it. Mandibles with the two lower teeth long and pointed. Antennæ rather short, flagellum only feebly brownish beneath. Thorax very closely punctured, not very densely hairy; basal triangle of metathorax minutely granular, its extreme base minutely longitudinally plicate. Tegulæ black, shining, sparsely punctured. Wings hyaline, faintly dusky beyond the nervures, nervures black. Legs black, with pale brownish or grayish pubescence, rufescent on inner sides of basal joints of tarsi; hind femora quite broad at ends, basal joint of hind tarsi quite stout. Abdomen short, suboval, convex, shining, strongly but not very closely punctured, first joint covered with sparse long pale ochreous pubescence; remaining joints with a sericeous pile, only noticeable in certain lights, when it will take more or less the appearance of bands. Apex with snow-white hairs. Ventral scopa black in middle and yellowish-white at sides.

On page 158, Vol. 86, lines 20-25 should read as follows:—

11. Shape of body tadpole-like; 2 reddish-brown spots on top of head; yellow-green dorsolateral stripe (fat bodies) on abdomen and part of thorax—Nematinus unicolor (Marlatt)

Shape of body not tadpole-like; markings on head as in Fig. 3; yellow-green addorsal line (fat bodies) on body; 3 yellow-green lines (fat bodies) on posterior segments…Pristiphora siskiyouensis Marlatt

Synopeas osgoodi n. sp., associated with balsam gall midge, Mariaville, Me., U.S.A., and Platygaster kimballi n. sp., associated with thistle, Houlton and Belfast, Me., U.S.A., are described herein.

Anisosticta strigata, Thumb. Very abundant, found under stones, bark and other objects in nearly all pasture and meadow lands. I have never taken it while feeding. A colony of over fifty was taken from under one stone the past summer.

A small round box of bamboo (8 by 6 inches) was bought nine years ago in Hong Kong, China, and brought home to Boston. It was placed on a little shelf on the wall, and used for Turkish tobacco. The box was lined inside with a perfectly closing box made of East Indian block-tin, about a millimetre thick. I examined the box January, 1885, and found it hollowed throughout like a sieve, and containing between the tin box and the bamboo cover a large number of dead and living beetles and two living larvæ. The tin box had four small round holes apparently cut through by the insects. The beetles represented two species, one, a little larger, only two specimens, all the others belonging to the second specres.

This tribe, to the initiated, is readily distinguished by the eyes, which are usually quite differently shaped, rarely smooth and shining, and always distinctly facetted, although a few females have small ellipsoidal or somewhat rounded eyes, as in the tribes Photopsidini and Sphaerphthalmini, and therefore, if the greatest care is not given to other characters, could be confused with certain genera in those tribes.

The vestiture is woolly, and in this lies a distinguishing character from the Argotini and Hadenini, which some genera much resemble, while the body is hardly tufted; the rather broad throax has sometimes a median ridge. The colours of the moths are often shades of brown, red and yellow, like the autumn foliage, in which many of the hibernating species hide. The eyes of the first genera are hairy; in several the tibiæ are spinose, the reverse being usually the case.

A discussion is presented about specimens that are morphologically intermediate between Nephrotoma ferruginea (Fab.) and N. suturalis suturalis (Loew). The specimens came from far outside the present ranges of these two species, namely Kerrville, Texas. It is concluded that the specimens might represent a population of hybrids. It is further estimated that the withdrawal of the parental species from central Texas could possibly have occurred a thousand years ago or earlier.

A new genus and species of Heptageniidae (Ephemeroptera) is based on a series of nymphs and reared female adults from the Saskatchewan River, Saskatchewan. Descriptions of female and nymphal Macdunnoa nipawinia n. gen., n. sp., of the subfamily Heptageniinae, are given along with notes on the biology. The genus has no close North American relatives, but is allied to heptageniid genera from southeast Asia.