40 THE CANADIAN ENTOMOLOGIST. 



exist a small bifidate spur. Colour brown. Length, i8-2c mm. Dates 

 of emergence of series, Aug. 25 to Sept. 14. 



In the season of 1908 a number of nearly matured necopina larvse 

 were secured boring in Burdock about Buffalo. From this lot, supposedly 

 all alike, a rather large, dark ochreous Papaipeina moth appeared at an 

 early date, being, in fact, the first specimen to emerge from a large series of 

 various species. It had concolorous stigmata, and differed from anything 

 previously seen. A relationship to imperspicua seemed most probable, 

 and the next year the Burdock were closely observed for some unfamiliar 

 larva which would prove this species. Nothing out of the ordinary could 

 be detected, however, though the final aggregation from this plant again 

 produced one of these aberrant moths. Mr. Mcjeser, the local enthusiast, 

 found, when emergence began, that he had succeeded in locating the 

 oddity boring in Angelica atropurpu7-ea, and secured a good series of the 

 moths. In 1 910 he sent on the larvae, which seemed to work in Angelica 

 as a pr.eferred food-plant, though many occurred in Heracleiim also, and 

 the two last stages were observed. An extended series of the moths show 

 the stigmata may become fully white, when they become comparable to a 

 smoky variation oi harrisii that is white-spotted. The result of the study 

 is to conceive this form an aberration of the Grote species that is forsaking 

 Heracleum as a staple diet, which probably represents a prairie race, and 

 really gives an example of a species in the making. As it never seems to 

 revert to the type form as exemplified by Kittery Point, Maine, material, 

 and is in no sense a case of individual variation, and, indeed, may prove 

 entirely distinct, a designation for it as an aberration of harrisii at least 

 seems advisable. 



Papaipenia rnbiginosa, new aberration. 



Head, legs and thorax dull purple-brown, irrorated with yellow scales ; 

 abdomen ligliter. Collar edged above with yellow, the spreading tuft of 

 usual proportions. Fore wings dull yellow, with smoky-brown powderings 

 more or less dense. At the hinder margin the yellow becomes brighter, 

 due to less powdering. Basal and medial areas the same shade of yellow- 

 brown ; ante- and postmedial areas purple-brown, but with litlle contrast. 

 Terminal space faintly lighter and yellower ; as is also the apical patch. 

 Basal line sinuous, double, filled in with yellow, not always well defined ; 

 antemedial line sinuous and indistinct ; median shade line shows plainly 

 from the lower end of the reniform, extending straight and obliquely to the 

 inner margin i)aralleling the postmedial. The latter distinctly double and 



