556 : General Notes. [June, 
the spring flowers come, when each student is prepared to make 
an herbarium of plants collected and determined by himself. It 
is doubtless true that the work in the fall term helps in the field 
work herein mentioned, but there is no question that students 
with no knowledge of plants can take hold of botany in the win- 
ter and do excellent, interesting work—work that is at the founda- 
tion of morphology and gross anatomy, the fresh material for 
which is in better condition than during the growing season when 
buds are forming and branches and leaves obscure the view.— 
Byron D. Halsted. 
ENTOMOLOGY. 
A CARNIVOROUS BUTTERFLY LARVA—PLANT-LICE FEEDING HABIT 
oF FENESICA TARQUINIUS.: —One of the most interesting of our 
butterflies is that known as Fenesica tarquinius, a unique Lycenid 
having the wings above brown-black in color with conspicuous 
orange markings both on primaries and secondaries. It has @ 
wide geographical range, occurring very generally over North 
America as also in Asia. 
stating that the larva lives on several species of Crategus. tit 
Scudder (Proc. Essex Inst., Vol. 111, p. 163, 1862) treats = 1 
under the name of Polpommatus porsenna (Syn. List of AM: 
the food-plants of the larva as Alnus, Ribesia, Vaccinium 
re Viburnum. Later, in the American NATURALIST: for August, 
4869, he gives the food-plants as follows: “ Probably arrow 
wood, elder and hawthorn.” die 
| Grote (Trans. Am. Ent. Soc., 1, p. 307) first proposed t 
~ generic name of Fenesica, but says nothing about its larval grees 
Strecker (Butt. and Moths, etc., Diurnes, p. 103) repeats sep? 
from Scudder; while Wm. H. Edwards, in his admirable lite- 
tremely interesting because, so far as I can find, there 15 ae 
another recorded carnivorous butterfly larva; and Mr. 3¢ a: 
who has given great attention to the butterflies, writes me in à 
cent letter, in reply to an inquiry on this point, that he ca ‘a 
call any mention of such. Quitea number of Heterocerous -i 
a hala a i eh ara ee 1886, before the Biolog! 
