THE CANADIAN ENTOMOLOGIST. 171 



large, toucliing orbicular above, finely outlined in black to the inner side 

 and centrally concolorous, somewhat paler along upper, outer and lower 

 sides from an admixture of paler scales. Secondaries pale yellowish, 

 veins darker, faint discal dot, mesial line distinct, but fine, and not 

 conspicuous, outer border of wing almost but not quite to mesial line, black. 

 Fringe brown at base, white outwardly. Under surface pale yellowish 

 from base to mesial line, external to this, blackish. A black blotch on 

 middle of costa of both wings. Faint discal dot on secondaries. Mesial 

 line on primaries, distinct on upper half, fading out as it reaches inner 

 margin, on secondaries distinct through its entire course and emphasized 

 by black dots on the veins. 



Type : 2 r? 's from Southern Arizona, One from Mr. Poling aryd 

 one of my own collecting. 



While recalling occata to a striking degree, it does not require any 

 very close inspection to readily separate them. 



Rhizagrotis socorro, n. sp. — Expanse : 36 mm. 



Ground colour varying from a pale yellowish brown, in some 

 specimens, through a quite well-marked luteous or reddish brown in others, 

 to a quite dark blackish brown form. Black shades and pale yellowish or 

 luteous markings encroach so much on the ground colour, however, as to 

 give a quite mottled effect. Aside from the ordinary lines and spots 

 there is a prominent black shade through cell from just before orbicular 

 to t. p. line, more pronounced in the darker specimens, more contrasting 

 in the paler. A broad, heavy basal dash extends to t. a. line, and after 

 being interrupted by it, is continued on as the prominent solid black 

 claviform from a quarter to half across the median space. There is also a 

 blackish shade on costa just before subterminal line, and one on outer 

 margin opposite cell beyond it. The costa is broadly pale creamy or 

 luteous yellow to t. p. line, with five or six dark spots on its edge, 

 marking inception of transverse lines. In some specimens these spots are 

 more or less fused, thus encroaching somewhat on the pale border. 

 Ordinary lines double, black, pale-filled. The basal half line not present, 

 except the dots on costal edge. T. a. moderately outwardly oblique, only 

 marked on costa and below cell, slightly scalloped, outer line more 

 prominent. T. p. moderately exserted over cell, thence with only slight 

 curve quite obliquely to inner margin, about 2 mm. front; t. a. line, well 

 scalloped, inner line well marked, outer faint. S. t. line bluish white, 



