238 



^Ienestomorpiia oblongata Walsingliam. PI. XXX, Fig. 8. 



Reared from Cynipid gall on Oak, Fort Grant, Arizona. 

 Genus Stenoma Zeller. 



1839, Isis, p. 195. 



Type : 5". litura, Zeller. 



Forewings with 12 veins ; 7 to terincn or apex ; 2 and 3 separate, 

 connate or stalked ; 4 free. Hindwings with 8 veins ; 3 and 4 connate 

 or stalked ; 6 and 7 stalked. 



The species at present recognized in North America may be sep- 

 arated as follows : 



Forewings not unicolored 1 



Forewings unicolored or nearly so, with only second discal spot darker 7 



1 Uncus simple 2 



Uncus forked 6 



2 Forewings with costa white 3 



Forewings with costa not white Iiumilis Zeller 



3 Forewings with faint longitudinal ochreous lines crumbitclla Wlsm. 



Forewings without longitudinal lines 4 



4 Forewings with pronounced black second discal spots ircnc Busck 



Forewings without defined spot at end of cell 5 



5 Forewings with dorsal dark area interrupted at apical tliird ; left clasp- 



ing organ of $ genitalia forked schlaegeri Zeller 



Forewings with dorsal dark area continued beyond apical third ; left 



clasping organ of 3 genitalia simple lindseyi Busck 



6 Forewings narrow, pointed; termen very oblique: Hindwings, triangu- 



lar pointed furcata Wlsm. 



Forewings broader, rounded; termen less oblique; Hindwings rounded 



algidclla Walker 



7 Ground color of forewings white 8 



Ground color not white 9 



8 Forewings pure white with black second discal spots vcstalis Zeller 



Forewings yellowish white without discal spots thomasi Busck 



9 Forewings dark brown dccoraseUa Busck 



Forewings grayish or ochremis stone colored 10 



10 Forewings ochreous unij^unctclta Clemens 



Forewings grayish 11 



11 Forewings with apex pointed; with single black dot at the end of the 



cell mistrella Busck 



Forewings with apex rounded; with two black dots at end of cell 12 



12 Occurring in Eastern or Central States qucrciella Busck 



Described from California osscclla Wlsm. 



