THE CANADIAN ENTOMOLOGIST. 13 



NEW LIFE HISTORIES AND NOTES IN PAPAIPEMA SM. 



(LEPIDOPTERA). 



BY HENRY BIRD, RYE, N. Y. 



(Continued from Vol. XLVII, p. 151). 

 Papaipema nelita Strk. 



A recent examination of Strecker's t}'pe reaffirms our early 

 determination of this species which was made from scanty material, 

 and we can report the larvae were found at fa\'ourable stations in 

 the environs of Chicago, the type locality, in Juh' of the current 

 year. Its association was with the previously recorded food-plant, 

 Rudbeckia laciniata L., so far the only known choice. Our larval 

 note in this magazine. Vol. XXXIX, p. 313, where it is assumed 

 from the penultimate stage the young larva? belong the group 

 showing a continuous dorsal line, needs correction. A summary 

 for stages III, IV, V may reflect, viz.: 



These instars correspond to the normal features of the group; 

 head polished, darkened at ocelli, but without the prominent side 

 line; tubercles not large, blackish, IVa does not appear on joint 

 ten; the white dorsal and subdorsal lines are broken at the middle, 

 where the mahogany browny body colour prevails as an encircling 

 ring on the posterior portion of joint three, on four, five, six and 

 seven, becoming paler with each molt; lengths, 15, 18, 21 mm.; 

 May 20-June 15, Chicago (larvee per A. Kwiat). 



At Wilmington, Del., Mr F. M. Jones has encountered nelita 

 Sit various stations, and his rearings of the moth show a small 

 percentage which have the stigmata white marked, in contra- 

 distinction to the type form. I f such happen to be_of well-developed 

 size, a superficial likeness is very strong with the white marked 

 P. frigida var. thalictri Lyman, in instances of small specimens of 

 that form. Under an adverse, criticism, which would countenance 

 no difference between these truly similar moths, all niceties of larval 

 differentation and departures of male structures would be swept 

 away. So it appears best to give permanent attention to this 

 departure with the Strecker species, characterizing it as variety 

 linda. 



January, 1916 



