17 



Front similar to septempunctata. Fore tibia with a somewhat shorter inner 

 claw, only about one-half to two-thirds of its length, and somewhat longer and 

 heavier outer spine than in septempunctata. Two smaller spines are present on 

 the inner side, and also what appears to be a vestige of two additional slender 

 and minute spines. There are two additional slim spines on the outer side. 

 Mid tibia with three or four spines on upper half only. Hind tibia with a small, 

 slim, spine ; near apical spurs ; only visible in an occasional specimen. 



Primaries: ground color pure white; with a black spot on costa near 

 the base; a t. a. line of four black spots; a black spot on costa in medial region; 

 a black spot near end of cell; t. p. line of black spots, some of which may 

 be connected ; followed by the s. t. band of the ground color, thru the center 

 of which is a distinct brown shade line ; s. t. line of eight or nine black 

 spots, often partially conjoined ; a short brown dash, near and parallel to outer 

 margin above vein 2 (Cu^) ; a terminal row of black spots in the female, con- 

 tinued onto the white fringe, causing it to be checkered ; in the male the spots 

 appear to be confined to a checkering of the fringe, but are very pronounced. 

 Secondaries : fuscous, paler toward the base. A trace of a medial line present. 

 Beneath : primaries heavily suffused with yellowish-fuscous over a white ground, 

 white in anal region. A terminal yellowish shade, obscured toward inner mar- 

 gin, continued along costa, where it is broken by s. t. and t. p. fuscous shades. 

 Fringe checkered. Secondaries : white, suffused with fuscous along costal and 

 outer margins, with a fuscous medial shade line and discal spot. 



Head, collar, and thorax same color as the ground of the primaries. 



Expanse: 20-24 mm. 



Genitalia: uncus without spoon-shaped tip, the point drawn out spine- 

 like; vinculum short and rounded, only the very end somewhat pointed; penis 

 with a very heavy dense spine-patch, toward the caudal end of which the spines 

 become very short but very heavy and mounted on mound-like bases. The 

 valves are exceptionally and radically different in shape from any other species 

 known to the authors except hinda. Probably soror will be found to have a 

 similar valve. There are a quantity of spine-like hairs along the inner or dorsal 

 margin of the valves and a very distinct hair-tuft from the cephalic edge of 

 the inbent projection, near the center of the valve, which have been omitted 

 from the figure for the sake of clearness. 



This species is represented in the Barnes Collection from: Santa 

 Catalina Mts., Pinal Co., Aug. 1-7, 24-30, and Redington, Arizona; 

 Southern Arizona, (Poling) ; and "Arizona." 



Type localities and number and sexes of types: "Type", $ , Santa Catalina 

 Mts., Aug. 24-30, hereby designated the lectotype; "Type $", So. Arizona, 

 (Poling). 



Grotella soror, B. & McD. 



1912, B. & McD., Can. Ent., XLIV, 19, Grotella. 1912, B. & McD., Cont- 

 Nat. Hist. Lep. N. A., I, # 4, 11, pi. IV, f. 13, ("Type 9"), Grotella. 



