The peculiar facility of the older entomologists, the fathers of the Sciences, for discarding each other's generic and specific names has in this instance, as in many others, given rise to be complicated synonymy, of which I give above that covering this extremely interesting little waterstrider. It is given more in detail in The Entomologist (London Eng.) for June, 1900, on Page 176, in which Kirkaldy elucidates it, relegating Say's specific name to synonymy, as it unfortunatley has been preoccuupied by Eschscholtz, who in 1822 described Hydrometra lineata from Manila, Philippine Islands. In the paper mentioned hereafter, Mr. J.O. Martin discusses the generic synonymy.

The recently-published article from the pen of Rev. Geo. W. Taylor, giving a rearrangement of the species now included under the genus Venusia, Curtis, under the same caption used by me in a previous paper, gives me, I think, a right to protest. He refuses to accept the separation of 12-lineata, Pack.? under a new genus, as given by me; but if the two male specimens, which were sent through the kindness of Mr. Geo.

The following list of Micro-Lepidoptera taken in the Province of Manitoba, is published for the purpose of recording the distribution of species, as well as an incentive to the collectors of the locality to make more than ordinaly efforts to add to the number. The work that has already been done is most gratifying, and compares very favourably with local lists of many of the States, from which a great deal mor would have been expected.

It seems quite certain in considering Redtenbacher' description of Xiphidium agile, DeGeer, which he considers the same as Orchelimum vulgare, Harris, that he took for his type of the species what is generally identified as O. vulgare. His figure (80) is also a typical vulgare. He says the elytra not at all or scarcely exceeding the hind femora, very little shorter than or equalling the wings. All the femora unarmed. These are charactes of O. vulgare, Harris.

The reciprocal relations of flowers and insects form a subject which has attracted many workers since Darwin and others showed the importance of this phase of biology. In the whole field of adaptation we have no better materials than those afforded by the morphology of flowers and insects considered in their relation to each other. The field has been most exploited by botanists, but some entomologists have also made valuable contributions to the literature of this subject, and their assistance has always been necessary for the identification of visitors observed.

I am very much indebted to Mr. T.N. Willing, a Regina, Assa., for the privilege of working up a very interesting collection of Micro-Lepidoptera. It is particularly notable in recording a number of species that have hitherto been only known by the types, and especially so in establishing a wide range of territory to species that have been only recorded from California. Following this paper I have one in preparation on the same subject, from material collected in Manitoba by Messrs.

Two species of fire-flies are abundant in western Massachusetts in the early summer and often their display of light presents a magnificent spectacle. Theses species are Photinus scintillans, Say, and Photuris Pennsylvanica, De Geer. Photinus scintillans becomes active very early in the evening, and long before twilight begins its orange-coloured light may be seen flashing among the shrubbery. It is only active during the twilight hour and some time before total darkness has set in its lights have disappeared.

On October 19th, 1904, at Urbana, Illinois, during a week a high south-west gales, I observed a fresh, unrubbed moth at rest on a small tomato that had been placed on a bench in the sun to finish ripening, and in the process had cracked open. The haustellum wad extended down deep into the juicy fruit and the moth gave every apperance to sucking the juice. No Other individuals were noticed abroad at that time.

219. N. havilœm Grt. — I confused this with the foregoing species until quite recently, so cannot state positively whether it is common or not. From memory I should say at least not rare. I picked four out of my series of twenty-five clandestina and sent two to Prof. Smith as possibly havilœ, but questioned their distinctness. He called them havilœ, and added, “The differences seem obvious enough in my Collection. It has the ground colour of primaries lighte, has a peculiar strigate appearance, and lacks all the red-brown that occurs in clandestina.”

In the three types to be considered in this place, then the conspicuous portion of the perianth is almost always campanualte or more generally widely patent and sometimes reflexed. The anothers are regularly elongate in form, linear or subulate, and basifixed on filaments of greater or lesser length. The pistil is usually simple, with filiform style and punctiform stigma, but to this there are rare exceptions. The Dilleniaceous type is distinguished by its numerous, generally free, stamens with long or short filaments, and sometimes several pistils free almost to the base.

Dr. W. H. Ashmead, of the National Museum, Washington, D. C.., has published from time to time in the Canadian Entomologist descriptions of new genera and new species of Hymenoptea from the Philippine Islands. As the great majority of these new insects were either collected or bred in the garden attached to the Manila Observatory, perhaps the life histories of some of them will not be without interest and value.

Aristotelia Youngella, sp. nov.—Head. antennæ, palpi, thorax abdomen and legs shining iridescent green. Basal half of front wing and outer half along costa black or very dark brown, heavily overlaid with iridescent green. The dark basal half is outwardly margined by the black ground colour, owing to absence of the iridescent scales at this point. All the outer half of wing, except the dark costal streak, is dull ochreous, inwardly margined by a pale yellow line, the latter adjoining the dark line of ground colour outlining the basal half.

Phlepsius Slossoni, n. sp.—Form and general appearnce of lippulus nearly, slightly larger and darker, with a much longer, flatter vertex. Length, 6 mm.; width, 2 mm.

Vertex slightly acutely angled, the apex truncate, nearly twice longer on middle than against eyes, the disc concave, anterior margin sharp and broadly foliaceous, the line between this foliaceous margin and the front proper being sharply marked. Front slightly convex, evenly narrowing to the apically expanded clypeus. Elytra moderatley long, appressed behind the middle, the apices slightly flaring. Venation obscure.

Since the discovery of Wyeomyia Smithiiin the leaves of Pitcher plants in New Jersey, by Dr.J.B. Smith, it has been reported from Massachusetts and Florida.

On June 16tg of the present year, the writer found a larva of the second stage in a Pitcher-plant in a greenhouse in the Botanical Gardens, Washington, D.C. July 8th, three more specimens were taken there The plants had been brought from South Carolina, and had been in the greenhouse for several Years.

Probably everyone will agree with Dr. Pearsall's remarks in the April number of this journal as to the necessity for a revision of the North American Geometridæ. The whole group is in a sad state of disorder; the old species are not all well understood and many of the newer ones (Dr. Hulst's and Dr. Strecker's), being unfigured and insufficiently described, are very difficult to identify. It will be some time yet, I fear before anyone will be in a position to attempt a completed monograph, and probably it will be better to take up the work genus by genus, as Dr.Pearsall is doing.

Stethomyia pallida, n. sp.— ♀. Head light testaceous, a few white flat lanceolate scales on the vertex, othewise clothed with sparsely set slender hair-like curved brown scales, nearly as long as the very slender fork scales which occur on the occiput; two light brown bristles project foward between the eyes, and a few around the eyes. The head shows no sign of having been denuded, and besides the slender hair-like scales is covered with a short fine tomentum or frostiness, such as is oftern seen of the thorax of Anophelina.

Trioza Kobelei, sp. n. — The figures of the tegminal neuration and of the male genital segment in profile, and the following brief description, will distinguish this destructive form from the three other North American Trioza species. Head and thorax varying from dark fulvous to blackish polished, shining. Antennæ testaceous, exceptapically. Tegmina and wings hyaline, colourless, nervures brownish. Femora dark fulvous or blackishbrown, tibiæ and tarsi testaceous, except the apices of the apial tarsal segments. Abdomen smooth, polished and shining, black, with a dark bluish-green gloss.

309. M. Dodii, Smith.—(Can. Ent., XXXVU., 152, June, 1904). Described from Calgary and from Bullion Park, Colo. The type is a Calgary specimen at Rutger's College, and I have two ♂ co-types.

It is now twenty years since the lamented Jules Lichtenstein published the first—and, unfortunately, last—part of his proposed monograph of the Aphidæ (a). This instalment contained a list, without references, of the genera and species known to Lichtenstein, but, as will be seen from the following pages, a large number of names was omitted and some were misapplied, so that a new list of genera should be useful, having reard to the interest and importance of the family.