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green variety of Plusia chrysitis, L., and varieties of Epiinda 

 lutitlenta, Bork., to the last of which Mr. Russ called special 

 attention. Mr. Tutt remarked that the varieties of E. lutuleiita 

 appeared to be the form known as luneburgensis, Frr. 



The Secretary read the following notes from Mr. T. D. A. 

 Cockerell : — 



" (i.) Dermestes fasciatus, Lee, type and aberration. D. 

 fasciatus of the ordinary form is very frequent in Custer 

 County, Colorado, but the example now shown is the only 

 marked variation from the type that I have met with. This 

 interesting specimen has the left elytron grey below the grey 

 band — almost as grey as the band itself, and with not much 

 black marbling. The right elytron below the band is black, 

 with a trace of pale marbling, as in the usual form of the 

 species. A symmetrical colouring in Coleoptera is by no 

 means unknown — perhaps in this case, or even in most cases, 

 it is due to partial atavism. Probably certain of the so-called 

 ' hemaphrodite ' specimens of Lepidoptera have a similar 

 origin, 



" (2.) Pyractomena borealis, Randall. This specimen was 

 obtained near Ula, Custer County, on the evening of June 

 1 2th. I was returning from town, and it was already dark, 

 when I suddenly observed numerous bright points of light 

 amongst the rank grass and herbage close to a creek. The 

 lights appeared suddenly, lasted for from two to four seconds, 

 and then went out. A search soon revealed specimens of the 

 Pyractomena, each seated on some blade of grass or flower- 

 stalk, their caudal segments (which are of a pale yellow 

 colour) glowing vividly from time to time, the light being 

 emitted in undulations lasting for about a second each, and 

 fading altogether, or occasionally leaving a faint glow, after 

 the third or fourth undulation. This, in fact, is the ' glow- 

 worm ' of this country : the way in which the light is emitted 

 is the chief point of interest in comparing it with the well- 

 known Lanipyris, and interesting speculations might be made 

 as to the precise nature and use of this luminosity. Pyrac- 

 toniena is luminous here only for a short time — in the month 

 of June." 



Mr. Tugwell read a paper, " Practical Hints on Breeding 

 Macro-Lepidoptera." 



