584 



WILLIAM T. M. FORBES 



7. S. truncatalis McDunnough. Similar to 8. basalis, but without any brown 

 markings, the scaling wholly black and white. Claspers much broader than in 

 8. basalis. 15 mm. 



July. 



Norway Point, Lake of Bays, Ontario. 



This form is obviously distinct from Itasalis, but not distinguishable (on the basis 

 of the single specimen before me) from dark specimens of 8. cinereomedia, with 

 which McDunnough does not compare it. 



There are probably several other undescribed species of this genus in our terri- 

 tory, but they need a full study of the structure and variation, to be worked out. 



Subfamily PYRALIDINJE 



Antennae rarely with modification; ocelli variable, normally concealed or absent; 

 antennal socket rarely separated from eye by a line of scales; front nearly smooth 

 (fig. 365) ; maxillary palpi good sized, but not triangular, and well developed even 

 when tongue is rudimentary; tongue variable; fore wing (fig. 361) with R 5 stalked 

 with R, and R^; R 2 free; 1st A lost, but represented by a wider space between Cu, 



FIGS. 361-366. 



361, Pyralis farinalis, venation; 362, Hypsopygia, costalis, venation of fore wing; 

 363, Aglossa pinguinalis (Europe), venation ; 364, Omphalocera dentosa, venation 

 and costal fold of male; 365, Aglossa cuprealis, side view of head; 366, Cledeobia 

 angustalis (Europe), seta map of larva. 



and 2d A; 3d A usually obsolete, becoming coincident with 2d A in Hypsopygia 

 (fig. 362). Hind wing without a fringe on base on Cu; Sc and R parallel, some- 

 times no closer beyond the cell than along it. 





