286 WILLIAM T. M. FORBES 



white scales, occasionally wanting, on inner side of discal dot. Fringe yellower; 

 hind wing mouse gray. 17-20 ram. 



May to July. Larva a leaf-roller on oak, skeletonizing the leaf. (Described 

 from the same material as type of D. roseocostella Walsingham.) 



Distribution apparently general. 



D. ventrella Fitch (1854) appears to be the same species, so far as can be told 

 from the description; and in that case would have priority (unicipunctella 

 Clemens). 



"New York" (Fitch). 



11. D. eupatoriella Chambers. Male with a large expansible tuft, normally 

 hidden behind fore coxa. Dull purplish gray or fuscous; costa whitish and 

 lightly dusted with dull black, somewhat less contrasting than in Trichotaphe 

 setosella. Blackish patch on cell and fold of fore wing not quite reaching middle 

 of wing; its front edges with sharp angles near its tip and halfway between there 

 and base of wing, with a right angled emargination between; shorter than in 

 setosella. Postmedial line, whitish, fine, and nearly erect; the wing darkened 

 beyond it to outer margin. 16 mm. (dolabella Zeller, setosella Walsingham, not 

 Clemens.) 



May to July; late September. Caterpillar on Eupatorium ageratoides and Ver- 

 nonia, when on the former plant folding a leaf so that a large side vein lies against 

 the midrib; greenish white. July. 



New York to Florida and Manitoba. New York: Crosby (Yates County). 



12. D. marginella Fabricius, a pale even pinkish brown species, with the fore 

 wing margined all around with cream color, has been introduced from Europe 

 at Westchester, Pennsylvania, and at Tarrytown and Plandome, New York. Larva 

 on Juniperus communis, social in a web; brown, longitudinally striped. (Nothris 

 auct. ) 



10. GLTPHIDOCERA Walsingham 



(With Sceptea Walsingham) 



Similar to Trichotaphe; palpus with second segment not swollen, evenly upturned; 

 fore wing (fig. 161) with R, and Re completely united, and often stalked with R 3 

 or Mjj Cu-! and Cu 2 stalked, M 3 occasionally arising from the base of their stalk, 

 typically nearer M 2 . Male antenna in some species with a notch in the shaft 

 near the base, edged with rough scales, and running obliquely across several 

 segments. Obscure ochre yellow species, dusted more or less heavily, with the 

 ordinary dots alone indicated by a gathering of the dusting. G. lactiflosella only 

 is pale yellow without dusting. 



Key to the species 

 1. R 3 , R4 +5 , and MI all free. 



2. Antenna strongly notched ; ground dull ochreous 2. cequepulvella. 



2. Antenna simple; ground cream color 1. lactiflosella. 



1. R 3 short-stalked with R 4+0 ; notch rudimentary or absent. 



2. MS stalked 5. dimorphella. 



2. M s free. 



3. Antennae annulate with black; a moderately powdered species. 



4. meyrickella 



3. Antennae annulate in two shades of light brown 3. speratella. 



1. R4 +5 stalked with Mj 6. alerratella. 



1. G. lactiflosella Chambers. Cream color. Thorax with three dark dots behind; 

 palpus simple; second segment dark on outer side, except apex. Fore wing with 

 a dot in base of fold, an antemedial dot in fold, dots opposite each other at 

 middle of wing in cell and fold, sometimes fusing into a bar, and a bar at end 

 of cell, all brown. Terminal line brown, at apex only. Ground lightly dusted 

 with brown. 12 mm. (Trichotaphe). 





