Lepidoptera of New York and Neighboring States 247 



Key to the species 



1. Dark brown with yellow patches. 



2. Yellow scales or streak in base of fold (CEcophora neivmannella) ■ 



2. Three or four rounded or irregular spots 4. dimidiella. 



2. A comma-shaped, or semilunate spot two-thirds way out on inner margin. 



5. coloradella. 

 1. Tricolored. 



2. Yeilow with red-brown markings 1. argenticinctella. 



2. Mainly tawny yellow and black. 



3. A longitudinal streak from before middle to apex 3. lucidella. 



3. This streak broken up; square cream-colored spots on costa and inner 

 margin toward base 2. edithella. 



* Eyes large. Cilia on antennas half as long as segments ( Schiff ermuelleria ) . 



1. S. argenticinctella Clemens. Head pale; thorax orange; palpi brown and white; 

 antennae black and white. Fore wing orange and yellow; base of inner margin 

 with a silvery band edged with black; an antemedial oblique bar, not reaching 

 costa; a bar along costa, well out, and a semicircular one opposite it, on inner 

 margin; all silvery and edged more or less 'fully with black. Base, apex, and area 

 enclosed by the line, deep orange or chocolate brown. A brown spot at apex and 

 some dark subterminal suffusion. Fringe pale. Hind wing fuscous. 12 mm. 



End of June to August. Caterpillar under bark of elder. 



Of general distribution and not very rare. New York: Ithaca, Rhinebeck, New 

 York City. 



** Eyes small. Cilia on antennas at least as long as segments. 



2. S. edithella Busck. Dark bronze brown, with golden and silvery markings, 

 face white; palpi somewhat golden; antennae bronzy black; vertex and thorax 

 deep bronze; fore wing with a transverse, erect, silvery fascia at a fourth way 

 out, widening somewhat on inner margin; and an apical fascia two-thirds way 

 out, reaching the costa and interrupted at its middle by a golden streak; a fine, 

 silvery, subcostal streak in median area, and two close together in middle of 

 wing: all dark-edged. A longitudinal golden shade on and beyond cell, inter- 

 rupted by the silvery markings. Fringe, abdomen, and hind wings dark bronzy 

 brown, with silvery anal tuft. 9-10 mm. 



Center Harbor, New Hampshire; Delaware Water Gap, Pennsylvania. 



3. S. lucidella Busck. Palpi golden yellow. Antennae black with silvery white 

 tips. Head and thorax bronzy. Fore wing black on margins toward base, along 

 dorsum, and around apical edge; the rest a yellow area, covering costal half of 

 wing and sending a long process toward apex; a narrow, black-edged blue fascia 

 a third way out, crossing the golden area and ending in a pale yellow discal 

 spot. Two pairs of black-edged longitudinal streaks in cell; a small pale yellow 

 spot at middle of costa; and a dash two-thirds way out. Fringe iridescent blackish. 

 Hind wing, abdomen, and legs black; tips of tarsi and spurs silver white. 12 mm. 



Early June. 



Western Pennsylvania. 



4. S. dimidiella Walsingham. Dull brown, spotted with straw yellow. Face 

 white, antennae black and white, with white scape. Fore wing witli a very large 

 yellow triangle resting on inner margin near base, and smaller spots on costa 

 at middle and before apex, the latter spot continued as a curved yellow post- 

 medial line to inner margin. 12 mm. 



This moth can be superficially distinguished from CEcophora borkhausenii by 

 its fringe and thorax being mostly black; from Symmoca novimimdi, by its much 

 more extensively pale head; and from Triclonella determinatella, by the basal 

 spot not reaching the costa. It flies from the end of April till June. 



