This family is of small extent, and the members are as a rule easily recognized by their peculiar habits. In the genera Lucanus, Dorcus, Platycerus and Ceruchus the males are marked by a greater development of the mandibles, associated in turn with a greater or less broadening of the head. The antennæ differ from those of the Scarabæidæ (to which family the Lucanidæ are closely allied) in not having the plates of the club completely opposable. In other words the club is pectinate rather than lamellate. These organs offer a good character for the division of the family into two divisions—the first containing those genera in which the antennæ are geniculate (i. e., crooked like a bent knee, the second and following joints forming an angle with the first, as shown in the figure of Lucanus dama, fig. 12), while the second is composed of those in which they are straight. The male antennæ frequently differ from those of the female, but it is not necessary to enter into details for the purpose of this paper.

Lederer characterizes Asteroscopus essentially as follows: Narrow-winged owlets, resembling Bombycids in the shaggy, loose vestiture. Palpi short, not exceeding the front, drooping. Tongue short and weak. Eyes naked, with bristly lashes. Antennæ comparatively long, with a tuft of hair at the base; in the male with short pectinations to the tip; in the female with sharp, ciliated angles to each joint. Thorax broad, convex, clothed with long, woolly hair. Abdomen shaggy, untufted. Body beneath and legs with dense woolly vestiture. Legs short, anterior tibia with a long claw at the tip.

I have named my specimens in accordance with the material in the National Museum, arranged by Prof. Smith. The result is unsatisfactory, bacause this is the gum-tree larva described by Edwards and Elliott as I proepilata, Grt. (Papilio Ill., 135). The larva mentioned in Guenée as delineata has a different food plant. There is evidently some confusion here, which must be adjusted by the next monographer of the genus.

At Wooster, Ohio, this species was observed in the fieds on May 26, and at Alliance, nearly due east, on October 24, while at Bridgeport, in the extreme eastern central part of the State, it was found, active, on November 4, all during 1898. It appears to have been more numerous of late in the vicinity of the south shore of Lake Erie than elsewhere in the northern portion of the State, and more abundant than I have formerly observed it in the same latitude in Indiana and Illinois.

20. Schistocerca americana, Drury.

Gryllus americanus, Drury, Illustr. Nat. Hist., app. (1773).

Acridium americanum, Scudd. Mat. Mon. N. A. Orth., 466 (1862).

Schistocerca americana, Blatchley. Can. Ent., XXIII., 79 (1891).

This large and beautiful locust has been twice reported from Ontario, at London, (Can. Ent., XXVII., p. 52), and at Toronto(Can. Ent., XXIX., p. 89), a single example being taken in each instance. These were probably wanderers from the South, certainly in the case of the Toronto specimen, and the insect can hardly be regarded as a native of our Province, though it may be established in the extreme southern portion.

Prof. Webster's interesting note on page 4 leads me to offer a few remarks. The species of the sub-genus Toumeyella of Lecanium have quite a strong musky odour; but ordinarily I have been unable to detect any marked odour in species of Coccidae. I suppose, however, that all possess some odour, and that its purpose is to attract the males to the females. This seems the more probable when we remember that in many species the male puparia are not on the same part of the plant as the famales. Here at Mesilla Park, also, I have lately seen a male of Margarodes hiemalis, Ckll. ined., run over the ground until it detected a spot where a female was buried, and them dig down to the female. It must certainly have detected its mate by the sense of smell.

An experience of eighteen years in collecting Coleoptera in Kansas would naturally lead to the discovery of several good collecting grounds, and to many interesting observations on the abundance of or scarcity of certain species for one or more years.

I have found my most interesting and profitable ground on the salt marshes or flats of Wilson County in South-eastern Kansas, and Republic and Mitchell Counties in North Central Kansas; in the valleys of the Verdigris River in Wilson County, of the Republic an River in Jewell County, the Smoky Hill River in Wailace County and the Arkansas River in Hamilton County; the two latter in extreme western Kansas.

Macroxyela ferruginea.—Larva is about 1.5 cm. long and caterpillar-like, green with yellowish-white markings, prolegs on every abdominal segment, anal area smooth and concolorous with the body antennæ six-jointed. Feeds on Ulmus mericana.

Head green; antennæ green, except three brown distal joints and a brown ring around the middle of the second and third joints; mandibles rufous at the tips; ocelli black. Body green, with the following parts yellowish-white; two dorsal strpies, a substigmatal line extending along the substigmatal fold of skin from the head to about the third or fourth abdominal segment and the tubercles; a ventral line of pearly white extending from head to 4th abdominal segment.

Icerya (Crypticerya) Hempeli, n. sp.,—♀. Exposed on bark, subglobose, much like a very large I. rosoe. Length 8, breadth 7½, height 5⅛ mm.; dark slate-gray, with a thin but rather dense coating of cream-coloured mealy secretion. Subdorsal areas marked by a longitudinal series of small round spots free from secretion. Legs piceous or dark brown.

Dactylopius sorghiellus, Forbes. Syn. D. Kingii, Ckll.

Dr. S. A. Forbes has kindly sent me the type material of this species, which I have examined with much interest. The material studied consisted of 4 specimens. As is usual with these subterranean forms the antennæ are quite variable, both in the number of segments and their relative length.

Only two of the antennæ of the 4 specimens were 8 jointed, the others being 7-jointed, and some plainly aborted. After careful measurement and study, I conclude that the forms described by Cockerell in Science-Gossip, Feb., 1897, p. 240, as D. Kingii, must be referred to this species.

Eggs.—Laid dispersedly on the 11th of August. They were pinkish-white in colour; somewhat flattened; striated, and had cross indentations. They hatched on the 21st of the month.

Newly-hatched larva.—A half-looper; one-tenth of an inch long. Head bilobed, large. General colour a very pale olive-green, with numerous black warts on head and body, and a few white bristles. Mandibles amber-coloured. Feeds on Plantago major. Moulted August 28th.