278 WILLIAM T. M. FORBES 



2. No transverse fascia. 



3. One white costal streak or none. .-,>*>... 



4. Palpi yellow , i6 ^. . . .5. nonstrigella. 



4. Palpi dark brown 6. lupinella in part. 



3. Two white costal spots 9. levipedella. 



1. Basal half of fore wing more or less mottled. 



2. Crisply dusted and marked with black on white. .2. niveopulvella. 



2. Ground practically even. 



3. Postmedial line indicated by a white dot at costa and a yellow one on 

 inner margin; palpi unicolorous whitish, more or less contrasting 



4. crescentifasoiella. 



3. Postmedial line all one color and continuous or nearly so, often faint. 

 4. Ground ash gray. Larger. Second segment of palpus blackish with 



whitish tip 1. innocuella. 



4. Ground gray-brown. Smaller. Second segment of palpus unicolorous, 

 about the color of the fore wing 3. rhoifructella. 



I. Second segment of palpus with a loose tuft above (Anacampsis). 



1. A. innocuella Zeller. Ash gray, postmedial line paler, transverse, well out, 

 waved, and followed by a blackish shade; three blackish dots in cell and one or 

 two in fold. Palpus somewhat paler, with basal two-thirds of second segment 

 blackish, contrasting. A slight tuft on upper side of second segment. 20-24 mm. 



Common in July. The caterpillar forms a cylindrical roll of a leaf of poplar. 

 It usually cuts the petiole early in the last stage, and finishes its feeding in the 

 decaying leaf lying on the ground It may be found in June. It is transparent, 

 the white fat and green food showing through; head black or black-brown, cervical 

 shield brown, with black sides and posterior edge, true legs and tubercles black. 



Massachusetts to Colorado. New York: Ithaca, Ilion, Pearl River. Cold Spring 

 Harbor, Long Island. 



2. A. niveopulvella Chambers. Palpi blackish, white at tip of second and upper 

 side of base of third segments. Fore wing brownish black, heavily dusted with 

 white, the markings as in A. innocuella but strongly contrasting, formed of the 

 white powdering. 20 mm. Caterpillar on willow. Moth in July and August. 

 Probably a contrasty variety of innocuella. 



Quebec to Wisconsin and British Columbia. 



II. Second segment of palpus smooth above ( Compsolechia ) . 



3. A. rhoifructella Clemens. Grayish fuscous, marked as in A. innocuella, the 

 dark discal spots variable in size and often a much warmer yellow-brown. Palpi 

 warmer yellow-brown, paler toward tip, but without any sharp contrast. 15-18 mm. 

 (consonella Zeller, ochreocostella Chambers, quadrimaculella Chambers 1874, not 

 1875). 



General from May to August. Caterpillar in the spring in the fruit-spike's of 

 sumach (Rhus typhina) , feeding on the crimson hairs and exterior coat of the 

 drupes, living in a silken gallery within the cluster, and leaving strings of frass 

 outside. Cocoon in a slight silken web near the surface, in the frass. Caterpillar 

 immaculate, of various shades of brown with darker head and tubercles, and 

 blackish cervical shield. There is a species apparently the same as this on 

 Viburnum. 



New York: West Farms (the Viburnum species). 



4. A. crescentifasciella Chambers. Ash gray, finely dusted with brown; a very 

 indistinct, pale, crescentic fascia at beginning of fringe, strongly concave toward 

 base, and rarely absent. One or two minute dark spots in disc and One at apex. 

 12 mm. 



