208 THE CANADIAN ENTOMOLOGIST. 



CORRESPONDENCE. 



OCCURRENCE OF TRIPTOGON OCCIDENTALIS IN MAITOBA. 



Sir, — About four years ago a specimen of this moth came to light 

 one evening through an open window. I saw no more until last year, 

 when I found two large pupae at the foot of a white poplar tree. One of 

 them produced the perfect insect, but the other was unfortunately a failure, 

 and only produced a number of Tachinous flies. I also caught, attracted 

 by light, a fine female moth which laid several eggs. Unfortunately I was 

 unable to watch them very closely, and several hatched out, and the larvae 

 died. I succeeded, however, in partially rearing one on the leaves of the 

 white poplar. This is a rough description of the larva : — -Colour, polar- 

 green. Head large and square and with an inverted v mark. Yellow or 

 gold ring between first and second, and second and third segments. 

 Yellowish-white stripe from anal horn, which is very small, and whitish 

 forward to the last pair of legs. This after 3rd or 4th moult. After 5th 

 moult, the head became yellowish-white with a pmkish tinge-horn almost 

 disappeared ; the line from the horn assumed a purplish shade ; slight 

 oblique lines on each segment. Eight pink spiracles on either side. Pro- 

 legs and claspers, pink, and above the anus a heart-shaped patch of pale 

 bright green. Colour, whitish poplar-green, skin very rough, 2 yellow 

 bands between first segments as before. Shortly after taking this note the 

 larva died. From time to time I have seen a few specimens of Afacro- 

 glossa bombyliformiz, (I use the name of the English lists as I am unable 

 to see any difference, and in any case you will know the insect I mean), 

 but last year it and M. ficclformis simply swarmed on the blossom of the 

 wild plum and wild black currant. At the same time I took two speci- 

 mens of a species of Deilephila closely allied to D. Galii. This is the 

 second species of this genus that I have taken. 



As Southern Manitoba may be unknown to many of your readers, a 

 short desi^ription of my place may be of some interest. I am some 120 

 miles west of Emerson, and 12 miles north of the boundary line. It is 

 intersected by a stream running in a deep ravine, the banks of which are 

 clothed with oak, white and black poplar, elm, birch, ash-leaved maple, 

 willows of very many species, ash, cherries, Saskatoon Amelanchiej- 

 ahiifolia, cranberry, gooseberry, currants, plum, hazel and Crataegus 

 thorn. The prairie, too, is not the generally conceived grassy sea, but is 

 dotted with clumps of poplar, willow, etc., and with here and there 

 patches of Eheagmis argentea, in prairie parlance " wolf-willow," roses, 

 etc. E. F. Heath, the Hermitage, Cartwright, Manitoba. 



Mailed July 6lh. 



