LEPIDOPTERA OF NEW YORK AND NEIGHBORING STATES 



65 



Pupa with enormous mandibles, crossed in repose, which it uses to 

 cut its way out of the cocoon and to dig up to the surface. All parts 

 loose (pupa lib era), there being some power of motion even between 



V' 



FIGS. 36-39. ERIOCRANIID^E 



36, Mnemonica, venation; fore wing: c.v., crossvein, 1st 

 A to 2d A; hind wing: c.v., crossvein, 2d A to 3d A. 



37, Eriocrania, maxilla: Ga, galea MxPlp, maxillary 

 palpus 



38, Eriochania, end of abdomen: viiT to ixT, inclusive, 

 seventh to ninth tergites of abdomen; xT, tenth tergite 

 or ovipositor; viiS, viiiS, seventh and eighth sternites; 

 ten viii, ten ix, tendons of eighth and ninth segments; 

 Ov, oviduct; Vg, vagina 



39, Mnemonica auricyanea: seta map (after Busck) 



the thoracic segments; skin extremely thin, shrivelling on emergence. 

 All sutures distinct; labruin large, free, with six pairs of setae. First 

 seven abdominal segments free. 



The imagoes are short-lived, and usually do not feed. The family is 

 apparently world- wide in distribution, with about 20 known species. 



1. ERIOCRANIA Zeller 



(Micropteryx, in part; Eriocephala Dyar, laps, cal.) 



Characters of the family. Wings lanceolate. Our species belong to the sub- 

 genus Mnemonica Meyrick; with all veins present, accessory cell absent in both 

 wings, and R of hind wing 4 -branched. 

 3 





