At 5,000 feet altitude, in the vicinity of Laggan, Nemeophila petrosaflies during July. This is one of our commoner moths, and appears to be the only bombycid of common occurrence in the district. Although occasionally round near timber 1ine, it is rare at that elevation. Under natural conditions only one flight occurs in the season, and larvæ from eggs of that flight hibernate principally at an early stage. In the house, with a warmer night temperature, larvæ resultant from the July flight will go to imago late in October instead of hibernating. Inthe wild environment, a second flight is prevented by the low night temperature. Petrosa frequents moist banks, ditches, margins of old roads, and open ground well supplied with plants. A great majority of the individuals seen in flight are males, the disparity in relative number of males and females observed resulting from the quieter disposition of the females. The males are very restless and readily take flight, thereby attracting observation.

In the February number of the Canadian Entonomoligist, Mr.Dyar very justly complains of the inadequacy of my descriptions of the above genera in Proceedings of the Zoological Society of London, for 1892. Both Preptos and Tamphana belong to the Eupterotidæ. Preptos is most closely allied to theEastern genus Tagora, walk., and differs in the following particulars:—Primaries with veins 5 and 6 from upper angle of cell, discocellulars angled outwardly and then inwardly close below vein 5; secondaries with discocellulars very obiique. No allied forms of Preptos oropus have as yet been discovered in America, although the species has been redescribed as Tagora corax Druce, Proc. Zool. Soc., London, 1893.

In a small collection of butterflies sent to me for identification, I find a good example of this very rare Hair-Streak, which was taken by Mr. William Metcalfe, of Toronto at Grimsby, on 24th of June 1894. This record is important, as it is the first one of an exact date and locality. Mr. Metcalfe states that the exact spot was along the Grand Trunk Railway track, near Grimsby Park, at the back of Mr. Harry Griffith's farm. The specimen in question is a male in good condition, although slightly stained with cyanide on the upper side. The figure given by Mr. W. H. Edwards (in his Butt. N. America, I., pl. 2, Thecla) represents this specimen admirably, although slightly larger. Mr. Metcalfe's specimen expands 22 mm., and has the orange spot on secondaries above only faintly indicated by a few rusty scales.

In my check list, New york, May, 1882, I first proposed the collective term Cydosiœ, having for its sub-family type the wellknown Cydosia nobilitella. I associated with it penthetria, Hy. Ed., not from any study of this genus, unknown to me in nature, but merely on the strength of certain of Mr. Edwards's remarks. This latter genus, under the name Tantura, Kirby, is now referred to the Lithosiidœ by Neumoegen and Dyar, and probably correctly. I excluded the gents Oeta, previously referred here, as I believed it to belong to the Tineidœ, as indicated by Zeller. To this sub-family Cydosiinœ, Grote, the genus Cerathosia is also referred by Neumoegen and Dyar, following Smith's more recent opinion.

Length, 13. mm.; ceph., 4.2 mm long, 3 mm. wide. Cephalothorax very dark brown, covered with blackhairs, clypeus with white hairs and some white scales on the lower sides; a bunch of stiff hairs behind the eyes of second row; mandibles red-brown, iridescent greenish near tip; sternum brown with black hairs. Abdomen black, a narrorw basal line of white, and broad side stripes of white which do not quite reach to the tip; just beyond the middle the side stripes indent the central black area; sides black and venter blackish; legs black, bases of metatarsi reddish. The cephalothorax is moderately high, narrower than in the allied species, the quadrangle wider behind, the anterior row much curved, the S. E. small and well separated from the M.E., the eyes of second row almost twice as near to the lateral as to the dorsal. The posterior metatarsi are more slender than usual, and spined only at tip.

In Osten Sacken's well-known catalogue of Diptera ten species of Phora are credited to our fauna. Of these I have been unable to find any Phorid described by Fabricins under the name of atra., The author who first used this name appears to have been Meigen; in his Klass. Besch. Eur. Zwei. Insect (1804), this author describes a Trineura atra, but in his later work (Syst. Besch. Eur. Zwei. Insect, 1830) this name is relegated as a synonym of Musca aterrima, Fabr. (Ent. Syst., 1798). In the recent revision of the Austrian Phoridæ, by Strobl (Wiener Ent.Zeitung, 1892, pp. 193–204), no mention is made of a Phora atra, Fabr. The reference in the catalogue should therefore be credited to Meigen, and transferred as a synonym of Trineura aterrina, Fabr.

Egg.—Pea-green colour; round, with deep longitudinal lines from the top to the bottom. Deposited in twos and threes up to us many as eight or nine at one laying before flying away. The eggs change next day to a mottled gray colour, resembling the dried plant stalks on which are they are laid. They are not deposited directly on the food plants, which are lupin and clover. They hatch out in nine days.

Larva, first stage.—A slender looper. Head quite large and bilobed, Light green from the head to the first segment back of the thoracic legs, which are six in number; thence dark green to the segment joining the four abdominal legs, lighter beneath; remainder of body light green. Length, about 6 mm.

Mandibles short, not reaching ends of anterior coxæ spines in pronotal comb, 14 to 26.

Mandibles long, reaching to or beyond ends of anterior coxæ spines in pronotal comb, 16 to 20.

Spines in pronotal comb, 14 to 20. …A.

Spines in pronotal comb, 24 to 26 ; hind femora with a row of minute bristles on side; first two or three abdominal segments with minute teeth on disc above; first claspers of male without short black teeth; bristles on second antennal joint shorter than third joint; length, 3–3.5 mm.; colour dark brown … avium.

The mounting of insects (which are naturally semi-transparent) without pressure has always appeared to me to be a far more satisfactory method than the process so generally in use, viz., the soaking the specimen in liquor potassæ until clear, and then pressing it flat between two glass slips. The liquid partially, or wholly, destroys the internal organs, and the flattening process completes what the liquid failed to accomplish; that is, in so distorting the insect that the flattened skin on the slip but very remotely resembles the natural insect.

The Editor regrets to announce that the main buildings of Trinity College School, of which he has been Head Master for the last twenty-five years, was totally destroyed by fire on the night of Saturday, February 9th. Thoungh the weather ws intensely severe and all the boys were in bed when the fire broke out, no one was injured in any way. Schoolwork was resumed in temporary quarters on th Tuesday morning, and in a few days a large hotel and other premises were secured, in which the boys are comfortably provided for until the work of rebuilding is completed.