Dec., '09] KNTO.MOI.OC.ICAI. XKWS 420 



the terminal leaves of the growing shoots of Aster shortii 

 Hook, may be found spun together by a Gelechiid larva, which 

 has proved to be that of T. nonstrigella. By the middle of 

 May, the larvae have all pupated in a fold made by turning 

 over the edge of a leaf. 



Larva when mature about 14 mm. long. Head shining blackish ; next 

 three segments plum colored, thoracic shield blackish ; segments 3 and 

 4 each ornamented with a pair of elongate, shining black tubercles; on 

 dorsum at the posterior end of segment 3, a pair of grayish white spots 

 and a similar smaller pair at the anterior end of segment 4. The re- 

 maining segments and the posterior end of segment 4 grayish white, 

 longitudinally marked with 7 plum colored stripes, one median and 

 three lateral, of the same width as the ground color between them ; a 

 few scattered hairis arsing from small black tubercles Legs black. 



The moths begin to appear about the 2Oth of May, and 

 during the latter part of May and early part of June are often 

 exceedingly numerous in the vicinity of their food plant. Oc- 

 casional scattered specimens may be found as late as the first 

 week in July. The species is single brooded. 



Ypsolophus citrifoliella Chambers. 



Nothris citrifoliella Chambers, Jn. Cin. Soc. Nat. Hist.. II, 184, 1880; 

 Comstock, Rep. U. S. Dept. Agr., p. 205, 1880. 



Ypsolophus citrifoliellus Busck, Dyar's List N. A. Lep., No. 5683. 

 1902; Proc. U. S. Nat. Mus., XXV, 923, 1903. 



There appears to be no record of the occurrence of this spe- 

 cies in the North, nor of any food plant other than orange. 



The larvae around Cincinnati feed within the folded leaves 

 of Prickly Ash, Xanthoxylum americanum Mill., a plant which 

 botanically and in its chemical properties is closely related to 

 the orange. 



Although the Prickly Ash grows commonly near some of 

 Chambers' old collecting grounds in Kentucky, he does not 

 seem to have ever met with the larvae or imagoes of F. citri- 

 foliellus. 



Nepticnla nyssaefoliella Chambers. 



Nepticula nyssaefoliella Chambers, Psyche, TIT, 66 1880; Dyar, List 

 N. A. Lep., No. 6206, 1902. 



Face and head tufted, reddish yellow. Antennae one-half, dark 



