34 THE CANADIAN ENTOMOLOGIST. 



solitary toward maturity. They feed chiefly upon white willow, Salix 

 lasiolepis and S. lasiandra, or the smooth-barked willow, like the Eastern 

 golden willow, and also upon the Cottonwood, Populus Fremont i. I have 

 also found their eggs upon Artemisia, " Roman wormwood." but I do not 

 think that plant can be a normal food-plant. The larva? are yellowish, 

 very much like those of Vanessa Antiopa, but are larger and lacking the 

 red dorsal tufts of the latter ; are spiny, and apt to be annoying if they 

 fall upon a person's neck as he goes among the trees where they live, 

 wherefore they are locally known as " the poisonous caterpillar." At 

 maturity they come down the stem of the willow, and pupate in the ground 

 or among the rubbish. Such as I have had to pupate in confinement, do 

 so without making any sort of cocoon, but with chrysalis naked, like that 

 of a butterfly. 



STRAY NOTES ON MYRMELEONIM), Part 4. 



BY DR. H. A, HAGEN, CAMBRIDGE, MASS. 



(Continued from vol. xix. , page "J17. ) 



Gen. now, Brachynemurus. 



Tibiae calcarate ; spurs as long as the two basal joints, or a little 

 shorter ; antennas longer than head and thorax, stout, cylindrical, a little 

 thicker to tip, which is bluntly pointed, but not clavate ; palpi about equal, 

 last joint of labials (except in B. longipalpis) with the basal two thirds 

 inflated, fusiform; abdomen long, slender, about half longer than the wings 

 (male) ; or as long as the wings (female) ; male appendages very short, less 

 than half the length of last segment, stout, cylindrical, very hairy and spin- 

 ous; a very small ventral triangular plate below and between them. Female 

 superior parts split, with numerous very strong spines; a short flat appendage 

 each side of the ventral part. Wings long, bluntly pointed, hind wings nar- 

 rower ; costal space with two series of areoles, or with one series, and the 

 apical transversals forked. 



