Orchelimum gracile, n sp.— A slenderer and somewhat smaller insect than either O. vulgare or O. concinum, from both of which it differs in the form of its pronotum and of the ovipositor. The tubercle of the vertex is short, broad, and has the apex rounded. The tegmina and wings are of moderate length, very delicate in texture, and in the male furnished with an inconspicuous musical apparatus very similar in proportions to that of agile and longipennis. Legs slender, the posterior femora not quite reaching the tips of the closed tegmina.

But little attention has heretofore been given to the Acrididæ inhabiting Indiana by the working scientists of the State. No record of any published paper relating to them can be found, and it is believed, we suppose, that because Indiana lies next to Illinois, where Dr. Cyrus H. Thomas did much of his work, that most if not all of the species of the family found in this State are included in the two lists of the Orthoptera of Illinois prepared by him.

Datana perspicua.—Egg: In general shape subpyriform; flattened at base and top, depressed centrally at vertex, the usual black spot small and indistinct, situated at the bottom of the punctiform depression; the whole surface punctured. Colour white, the lid-like top of a somewhat brighter white. Width .9 mm., height .8 mm. The egg is of the type of D. major, but resembles the type of D. ministra in coloration by possessing a discolorous lid-like top. This is the part of the shell eaten by the yound larva in hatching. Laid in masses of varying numbers on the under side of the leaves of the food plant.

Entomologists will be interested to learn of the occurrence of a near relative of the Horn Fly, HŒmatobia serrata, in the middle of the great cranberry swamps of Northern Minnesota. These vast low areas extend for hundreds of square miles in the vicinity of the Lake of Woods. They are the favored home of the American moose, and the hope of obtaining some specimens of this animal for the museum of the University of Kansas led Professor L. L. Dyche of that institution to traverse these dangerous marshes. Professor Dyche has recently returned after remaining for over three months in the very centre of the swamps, camping upon the occasional sand ridges which cross the region; and to him I am indebted for specimens of a new HŒmatobia.

In August, 1886, while visiting in Louisiana, Mo., I made frequent excursions to damp places along a neighboring book in search of butterflies. It was the droughty season, and there were but a few stagnant pools, damp gravel beds, and moist clay slopes at which insects could slake their thirst. At one of the last named places I noticed a great bunch of Coliads (mostly Colias philodice with an occasional Eurytheme), and a few specimens of Pieris rapŒ, which my advance started out put to flight. As a few individuals did not take to wing, but seemed unable to rise though they fluttered violently, my curiosity was aroused and a closer investigation showed the bank and gravel bed below to be strewn with mutilated specimens of Philodice, scores of individuals, detached wings in some cases, in others the head and thorax remained intact.