719. 



EDERESA SEMITESTACELLA. 



The testaceous White-back. 



Order Lepidoptera. Fam. Tineidae. 



Type of the Genus, Tinea Pruniella Linn. 



Ederesa Curt. — Erminea Haw. — CEcophora Och. — Tinea Linn., 

 Hub. 



AntenncB inserted on each side of the crown, over the eyes, as 

 long as the body and very slender, composed of numerous elon- 

 gated joints, attenuated at the base, each clothed above with 2 

 series of scales and hairy beneath, especially at the base of each 

 joint, the 1st longer stouter curved and scaly (1). 

 Maxilla shorter than the antennae, spiral, very slender and naked 

 at the base (3). 



Labial palpi more or less drooping, divaricating, slender, as long 

 or longer than the head, clothed with short scales, triarticulate, 

 basal joint a little clavate and curved, 2nd longer, nearly linear, 

 3rd nearly as long and stout, rounded at the apex (4 8( 4 a). 

 Head small with a large tuft of upright hairs covering the crown ; face 

 shining, with broad depressed scales (7 8f7*): eyes small and orbi- 

 cular. Thorax small. Abdomen rather short, apex obtuse in the 

 male, conical in the female. Wings long and narrow, very much 

 deflexed, almost cylindric in repose: superior elliptic-lanceolate, 

 costa arched ; cilia very long and extending round the apex where it 

 is short : inferior very narrow and perfectly lanceolate ; cilia very 

 long, extending all round. Legs, hinder the longest : thighs short : 

 tibiae, anterior short, the others with long unequal spurs at the apex, 

 hinder long and stoutish, with a long unequal pair also considerably 

 above the middle: tarsi long, 5 -jointed, basal Joint long, apical one 

 short (8t). The dissections were drawn from T. curvella Linn. 



Semitestacella Curt. Guide, Gen. 1027. 8. 



Silky testaceous ; palpi, crown of head and antennae white, the 

 latter spotted with black : superior wings fulvous, slightly 

 mottled, with a delicate violaceous bloom, 3 whitish spots on 

 the costa near the apex, and a flame-shaped stripe of the same 

 colour on the inferior margin, not extending beyond the middle : 

 inferior wings pale plumbeous, cilia yellowish fuscous, yellowish 

 at the apex of the superior wings with two fuscous curved lines ; 

 tibiae and tarsi spotted above with brown. 

 Tn the Author s Cabinet. 



From my genus Argyromiges (pi. 284) this group is separated 

 hy its short antennae and broader wings, as well as by the 

 proportions of the palpi and spurs, whicii are different ; but I 



