I see by Mr. Lyman's address (1899) before the Entomological Society of Ontario that he is a convert to the view of the specific distinctness of Halisidota tesselaris and H. Harrisii. I berieve this to be correct.

The “Green Dolphin” is one of the best-Known pests of peas and vetches in Europe, though but little concerning its economy has been recorded by European writers. In this country, N. pisi, Kalt., has been noted by Thomas, Oestlund, and Williams, but as their specimens were never compared with any from Europe, and as plant-lice are exceedingly variable and descriptions of them are, therefore, often of but little value even when accurate, the identity of their specimens with the European forms has been somewhat in doubt.

Calgary (altitude 3,400 ft.) is strictly a prairie city, situate at the junction of the Bow and Elbow rivers, about 40 or 50 miles from the true base of the Rocky Mountains. For several hundred miles to the east, the prairie is, with the exception of a few spots on river bottoms, absolutely void of either timber or scrub. A very few miles to the west the country becomes decidedly hilly, and in places densely covered witli dwarf willows. Still further west the hills increase in height, shrubs become proportionately more abundant, and several species of poplars make their appearance, the north and west sides of the hills being usually densely wooded. By far the greater portion of the material from which this list has been compiled has been taken by myself and Mr. A. Hudson during the past seven seasons amongst these hills (3,600-4,000 ft.) near the head of Pine Creek, about sixteen miles to the south-west of Calgary. This “hill-prairie,” as I will call it, and which may be looked upon as the boundary between the prairie and the foothills, is well watered by numerous creeks, and the valleys and hillsides—where not too steep—are largely grazed and cultivated, but otherwise splendid hunting grounds for the entomologist.

In the summer of 1889, while engaged in an investigation of the habits and life-history of the horn fly of cattle (Haematobia serrata), the writer at various times brought to Washington from different points in Virginia, large quantities of cow-manure collected in the field, and eventually succeeded in working out the complete life-history of the horn fly, as displayed in Insect Life, Vol. II., No.4, October, 1889. In this article the statement is made, in concluding, that the observations were greatly hindered and rendered difficult by the fact that fresh cow-dung is the nidus for a number of species of Diptera, some about the same size and general appearance as the horn fly, and that no less than twenty distinct species of flies had been reared from horse- and cow-dung, mainly the latter, and six species of parasitic insects as well.

Form and general appearance of pulchella; colour pattern of scaber, but with extra markings, and different colours on pronotum and elytra. Length, 5.5 mm.; width, 1.75 mm.

Vertex slightly angularly rounded, transversely depressed before the apex; front as in scaber, the margin between front and vertex more strongly produced. Pronotum slightly angularly rounding anteriorly, much more so than in scaber; lateral angles scarcely apparent, rounding from eye; pronotum and scutellum convex, elevated.

During a visit to Professor Fernald, in Amherst, Mass., last spring, he showed me a Nepticula, bred from Apple, which he had described in manuscript as a new species, but which he afterwards had suspected to be Micropteryx pomivorella, Packard.

From reading the description and life-history of packard's species, I felt sure that it was a Nepticula and presumably the same as Professor Fernald's species, and a week after, while studying the collection in the Agassiz Museum, Cambridge, I obtained definite proof that we were right.

♂, expanse 2⅜ in.; ♀, 2½ in. Fore wings long, pointed, apices depressed, of a uniform pale, rather dirty yellowish colour. There is a row of short intravenular dashes which form a narrow blackish line from apex to inner margin close to thorax. In the females this is almost straight, in the males it has somewhat of a downward curve. Another row of somewhat sagittal-shaped spots forms a second dark band from apex to inner margin a little within inner angle. Hind wings yellowish, semitranslucent, inner third dusky. Discal dot small, black. These markings, while distinct, are not heavy or pronounced. Thorax a little darker than wings. Abdomen dusky above, anal tuft yellowish. Beneath as above, only fainter. Thorax, legs and abdomen same, except inner side of fore femora, which are somewhat orange. Palpi dusky at extreme tip. Antennæ dusky, narrowly bipectinate in ♂, broadly so in ♀. The ♂ has the dusky shades darker than in the ♀, the abdomen being quite dark blackish brown above, contrasting with the light anal tuft. Types 2 pair in my collection from Huachuca Mt., Arizona. I take pleasure in naming this species after Mr. Otho C. Poling, of Quincy, Ill., as a slight token of my appreciation of the many favours he has done me.

The following table of the forms related to Lecanium must be regarded as provisional, pending a thorough study of the different stages of the now very numerous described species.

I do not wish by this title to imply that there is not to be another phase to this experiment, but owing to climatic differences between Ohio and South Africa, whereby our winter months are their summer months, the export side of the problem came first. Next autumn, in South Africa, but spring rvith us, the tide of transportation will set in in the other direction.