281 



4. With dark spot on fold 12. trimaculella. 



4. No dark spot on fold; head whitish 13. fernaldella. 



2. A heavy black V-mark on disc 14. setosella. 



1. T. flavocostella Clemens. Palpi with second segment loosely hairy on upper 

 side (Begoe Chambers). Head and palpi light ochre; tegulse cream white, fore 

 wing purple-black, with costa cream white almost to apex, narrowing a little at 

 middle of wing, and broadening and sending a long spur toward anal angle at end 

 of cell. 15-18 mm. 



June and July. Caterpillar on Solidago and Helianthus. 



Maryland to Georgia and Missouri. New York: Ilion, Big Indian Valley, 

 Poughkeepsie, New Windsor. New York City. 



2. T. inserrata Walsingham. Very close to the last species and perhaps a form 

 of it. but with the costal cream colored stripe narrowing more abruptly at middle 

 of wing, and widening roundly over end of cell without any spur. 15 mm. 



May to July; Caterpillar in immature fruit of Solidago; olive green. 

 District of Columbia ; Missouri, and elsewhere. 



3. T. serrativittella Zeller. Similar to T. flavocostella, the costal cream stripe 

 fully as broad, even in width almost to apex, except for two minute teeth, and 

 then abruptly running to a point just before apex. 10-15 mm. (plutella 

 Chambers). 



May; July to September. 



New Jersey to Florida, Colorado, and Texas. 



4. T. alacella Clemens. Chocolate brown; palpi and face bright yellow. Fore 

 wing with terminal margin metallic lead colored or greenish. Costa also lead colored 

 out to a cream spot before the apex, the area extending down into cell in a tooth 

 at a third way out, narrowed beyond the tooth, and then with a second process 

 at end of cell running across wing to inner margin. Vertex and tegulse dark. 

 15 mm. (ochripalpella Zeller; goodellella Chambers). 



July. 



Massachusetts to District of Columbia; west to Missouri. New York: Ithaca; 

 Sea Cliff, Long Island. 



5. T. purpureofusca Walsingham. Purplish black (becominsr brownish when 

 rubbed) ; face paler, steel gray; palpi and tongue bright yellow; immaculate. 

 Antennae normal. 18 mm. 



June and July. 



Ottawa. Ontario, to Wyoming .County, PennsvVvania; Manitoba. 



6. T. nonstrigella Chambers. Antennas verv densely clothed on basal half with 

 overlapping scales, as in Dasvcera. Nearly black: a little iridescent; lower part 

 of face and palpi bright .vellow; outer side of third segment blackish. Hind wings 

 fuscous as usual but with narrow white costal edee. 



June, one brood. Caterpillar spinning together terminal leaves of Aster shortii 

 in late April and early May; head black, cervical shield blackish, mesothorax and 

 front of metathorax plum-color; rest of hody grayish white with seven t>lum- 

 colored stripes as wide as the spaces between them. Dorsal tubercles of thorax 

 enlarg-ed. black: le<?s black. 



Western Pennsylvania to Kentuckv. 



7. T. "juncidella Clemens. Dull pu role -brown, with obscure darker postmedial 

 fascia and snot in fold near base. Discal dots (reniform, orbicular, claviform) 

 black, sometimes very lightlv defined with vellow. and with a few yellow scales on 

 costa before apex. Palpi and lower part of face contrasting, yellow. 15 mm. 

 f (Jii'biteHa Chambers). 



June to September. Apparently two broods. Caterpillar a leaf-roller on Soli- 

 daeo. Aster, Artemisia, and other composites. Head and cervical shield polished 

 black; mesothorax velvety black, white on posterior half, with five linear 'black 

 marks; rest of body white and obscurely striped, tubercles small, black. 



