290 THE KNToMOLOGISt's RECORl). 



apterous 5 s, and containing some Alpine, boreal, and other local 

 species. Biston is restricted, since it contains apparently hirtaria 

 only, and its American representative nrsaria. Jlistun hirtaria is evi- 

 dently local, both on the Continent, and in Britain. Why should it be 

 so attached to London ? The $ is winged, but hardly seems to fly 

 much. A male moth being pinned to a tree, a $ has been found in 

 cup. with it in the morning. — L. B. Pkout, F.E.S. [Extract from 

 paper read before the North London Entomological and Natural 

 History Society.] 



Erebia glacialis : with an incidental note on frozen insects. — 

 Under the Mattwald Glacier, descending from the Eossboden Pass, 

 between Simplon and Saas-un-Grund, I found Erebia (/lacialis in some 

 profusion, on the morning of August 7th. It is by no means an easy 

 insect to capture, as it haunts the steep, rocky, and treacherous 

 moraine debris, and with an ice-axe in one hand I found it extremely 

 diflicult to wield the net in the other efi'ectively. The morning was, 

 moreover, overcast, and it was only in the rare intervals of sunshine 

 that E. (/lacialis was on the move. I found an Erebia, not fjlacialis, 

 at the very summit (10,500 ft.), though it was blown away before I 

 could identify the species, for I was making the morning meal, at 

 8 a.m., after a climb of four hours from the village of Simplon. It 

 was also interesting to observe, in traversing the Griesscren Glacier on 

 the Simplon side, that several insects were frozen hard and fast in the 

 ice. They Avere Melitaea aurelia var. britoniartis, I'ieris callidice and 

 Colias pldcomonc — the latter strong Alpine flyers, and I think for that 

 reason more likely to have been dropped by birds than to have been 

 overcome by the cold. A Flusia, too, was lying stark upon the 

 glacier. A few days later Erebia r/lacialis turned up again on the 

 Langefluh, at Saas Fee, but in a very dilapidated state ; and I also saw, 

 but did not take, several ragged specimens near to the Mattmark Lake, 

 on the path to Monte Moro, where the var. pinto is also said to occur. 

 — H. Rowland Brown, M.A., F.E.S., Oxhey Grove, Harrow-Weald. 



:^OTES ON LIFE-HISTORIES, LARYvE, &c. 



Descriptions of Lepidopterous eggs.- — Tri/pliaiiia fimbria. — The 

 eggs are laid closely side by side, each one touching (or almost 

 touching) six others. They form about two-thirds of a sphere, and 

 have a conspicuously regular circular outline. To the naked eye they 

 are delicate green in colour ; but under the microscope are rather 

 yellowish-green. The shell is delicate and shining. At the equator 

 there are 32 distinct longitudinal ribs, not particularly prominent, 

 and uniting in twos and threes as they near the apex of the egg. As 

 a result, only from 10-12 reach the micropylar area, around which the 

 united edges of these ribs form a shallow rim. Within this rim there 

 is a slight depression, in the centre of which is a delicate rounded 

 micropylar button, raised almost to the level of the outer rim. There 

 is no distinct transverse ribbing, although the wavy appearance of the 

 longitudinal ribs at their summits indicate a delicate attempt at 

 ribbing, not otherwise observable. [Described under two-thirds lens, 

 on September 26th, from eggs received fi'om Mv. J. Clarke, of Reading, 

 on September 2-lth,] 



