V. The Coccinellidæ of Ontario and Quebec.

This family includes a moderate number of beetles, usually of compact, convex and often more or less hemispherical form, coloured as a rule in striking patterns of yellows or reds and black. In most cases the surface is glabrous, though in Scymnus and some less extensive genera it may be plainly pubescent. Technically, the family may be known by the clavate antennæ, the three-jointed tarsi with dilated second joint and the partially membranous dorsal abdominal segments; the ventaral segments are free, the first usually with coxal lines, and the claws ordinarily appendiculate or toothed.

The larvæ of two species of Arachnis, from Mexico, were given to me by Mr. Jacob Doll. They are the following:-

Arachnis aulea, Geyer.

Egg.—Shape of two-thirds of a sphere, with flat base. Shining, pearly, irirdescent. Diameter, .6 mm. The reticulations are rounded, moderately distinct, of quite uniform size, but smaller at apex. On the angles of the reticulations a series of short, stiff spines (½inch objective).

So far as I have present references Berg is the first to use again the term Euthisantoia for Eudryas unio an I have shown, not congeneric with unio, but belongs to my genus Copidryas. More recently Neumoegen & Dyar use Euthisanotia and cite Boisduval's Eudryas as a synonym.

In the Canadian Entomologist, 1892, pp. 193–197, the writer published some notes on New Mexico Heteroptera an Homoptera. The notes on the fifty-three species in the present paper are additional and complete the list, so far as the names can be obtained, of all the Hemiptera collected by the writer in New Mexico and Arizona.

(In 1889 and 1890, Mr. William Sheraton, of Wycliffe College, Toronto, collected some Odonata at Pictou, Nova Scotia, for me. At the end of the collecting season of 1889, he sent me a letter containing his field notes on the specimens captured. These observations are so interesting, in my opinion, that any publication in which they appear ought also to bear Mr.Sheraton's name as joint author. He has kindly acceded to my wish in this respect, although modestly protesting that his part has “been only such as any child could have done.” All notes in the present paper concerning localities, habits and dates are to be credited to Mr. Sheraton, while I am responsible for the determinations and the few bibliographical notes.)

½. Length, 7.5 mm.; ovipositor, 7 mm. Black, polished; with orbital lines from occiput to middle of eyes in front, cheeks, clypeus, mandibles except tip, palpi, gula, cuneiform lines on mesonotum, tegulæ, spot in front, lines beneath extending irregularly back to posterior coxæ, sides of scutellum, line on lower pleauræ between anterior and middle coxæ, prosternum, anterior coxæ, middle and posterior coxæ except a black dash above and large spot inside, all the trochanters except black base, posterior tibiæ, posterior tibiæ except black annulus near base and black extremity, and tips of the abdominal segments beyond the first, yellowish-white. Remainder of legs fulvous, with a black spot at the base of all the femora and an annulus near the tip of the posterior femora; tarsi dusky.

The following descriptions are offered, preparatory to publishing a list of the saw-flies of the Upper Cayuga Lake Fauna. The types are in the Entomological Collection of Cornell University.