404 PROCEEDINGS OF THE NATIONAL MUSEUM vou 86 



Genitalia (figs. 36-36d) drawn from slide of European specimen. 

 American examples are identical in all details. Vinculum with lat- 

 eral margins broadly and sliallowly excavate, posterior margin 

 straight. 



Female. — Color and markings as in the male, except hind wings 

 slightly darker. 



Alar expanse, 26-35 mm. 



Genitalia (figs. 78-78c) with signum small and weak. The eighth 

 segment collar is subject to considerable variation in the size and 

 shape of the unsclerotized dorsal area. Some variations are shown 

 in figures T8a, 78b, and 78c. These, however, do not conform to the 

 varieties that have been named and can be found in any series from 

 one locality. 



Larva. — Body cream-white, becoming bright green toward ma- 

 turity and just before pupation purplish green; a dusky green, longi- 

 tudinal, dorsolateral stripe and a fainter, middorsal stripe extend 

 from the prothorax to the tenth abdominal segment. 



Types. — No known existing types for convolutella., grossuJarieUa, or 

 grossulariae \ Rutgers College collection {francaniella hello) \ British 

 Museum ? {turhatella) : United States National Museum {ihouna^ 

 dilativitta, magni-flcarvi) . 



Type localities. — Germany {convolutella, grossulm'iella) ; Missouri 

 {gi'ossnlariae) ; Oldtown, Maine {turhatella) ; Franconia, N. H. 

 {franconiella) ; Massachusetts (hella) ; southern Utah {ihouna) ; San 

 Diego, Calif . {dilativitta) ; Seattle, Wash, {magnificans) . 



Food plants. — Rihes grossularia Linnaeus and other Rihes species 

 (larva feeding in the fruit). 



Distrihution. — Europe (central and southern). United States: 

 Maine, Orono; New Hampshire, Hampton (May), Durham; Mis- 

 souri; Colorado, Manitou, Denver (Apr.), Fort Collins (Mar., Apr.), 

 Utah, Logan ("June"), Beaver Canyon ("VII") ; Oregon; Califor- 

 nia, San Diego; Washington, Seattle, Bellingham (Apr.). Canada: 

 Quehec, St. Johns County (Apr.), Mount St. Hilaire (May); On- 

 tario, Hymers; Alberta, Edmonton (May), Bilby (May) ; British Co- 

 lumbia, Kaslo (Apr.), Wellington (Apr.), Alberni (May), Gold- 

 stream (May), Vancouver Island (Apr.). 



The foregoing localities are for the specimens before me. The 

 species is generally distributed over the northern part of the United 

 States and southern Canada. 



Seventy-four specimens examined. 



Remarks. — As far back as 1880 Packard identified the gooseberry 

 feeder in America with the European convolutella, and Grote (1882) 

 listed convolutella Avith grossulariae and turhatella as synonyms. 



