90 ILLINOIS BIOLOGICAL MONOGRAPHS [90 



e. Three ventral ocelli not forming an equilateral triangle, 

 angle at sixth ocellus right or obtuse (Fig. 71). 

 f. Front extending about two-thirds of the distance to ver- 

 tical triangle ; adfrontals meeting epicranial suture about 

 half way between front and vertical triangle. Plodia 



ff. Front extending about half way to vertical triangle, 

 g. Boundaries of adfrontals meeting epicranial suture about 

 half way between front and vertical triangle ; crochets 

 biordinal, the longer four times the length of the 

 shorter (Fig. 101). Pyralis* 



gg. Boundaries of adfrontals meeting epicranial suture 

 at a point about twice as far from the vertical triangle 

 as from front; crochets triordinal. Ephestia 



Vitula 

 ee. Three ventral ocelli forming an equilateral triangle, acute 

 angle at each ocellus (Fig. 70) ; front reaching about half 

 way to vertical triangle. 

 f . Head rugose ; body dark. Acrohasis 



ff. Head smooth. Mineola (a) 



dd. Kappa of first abdominal segment directly caudad of eta or 

 nearly so; front extending about half way to vertical 

 triangle, 

 e. Second ocellus not closer to third than to first; body not 

 striped, 

 f. Lateral margins of adfrontals convex dorsad, meeting in 

 an obtuse angle ; body dark, not spotted. Tacoma 



ff. Lateral margins of adfrontals nearly straight, meeting in 

 an acute angle, 

 g. Body and pinacula pale. Canarsia 



Mineola (b) 

 gg. Body black with white pinacula. Omphaloccra* 



ee. Second ocellus much closer to third than to first; first ocel- 

 lus larger than others ; lateral margins of front very con- 

 vex; body striped, usually longitudinally. (See subfam- 

 ily.) Epipaschiinae 



The following species of Phycitinae were examined : 

 Thyridopyralis gallaerandalis (heretofore included in Thyrididae) 

 Meroptera pravella 



Euzophera ostricolorella MeUtara prodenialis 



Salehria contatella Psorosina (Canarsia) hammondi 



Elasmopalpus lignosellus Hulstea undidatella 



Plodia interpunctella Ephestia kuehniella, E. cautella 



