12 



This species is probably represented in the Barnes Collection by 

 four specimens besides the types. One is a male, Colorado, (Bruce), 

 but lacks the checkering to the fringe and is without an abdomen ; the 

 others are females, (1) S. W. Colo., Aug., (Oslar), but with the sec- 

 ondaries darker than in the types; (2) Colorado, without other data 

 and apparently an imperfectly expanded specimen for the primaries 

 are less trigonate than is normal in the genus, (3) Colorado, (Bruce), 

 "Type" (Paratype) of sampita, but is almost certainly the present 

 species. 



Type localities and number and sexes of types: $ Holotype, Denver, 

 Colo., (Oslar); 9 Allotype, Colorado (Bruce). 



Grotella sampita, Barnes, (fig. 3). 



1907, Barnes, Can. Ent., XXXIX, 93, Grotella. 1912, B. & McD., Cont. 

 Nat. Hist. Lep. N. A., I, #4, 11, pi. IV, f. 10, Grotella. 



Front and legs essentially as in septenipunctata, except that the claw on 

 the inner side of the fore tibia appears to be very slightly longer and heavier. 



Head, collar, thorax and ground color of the primaries pure white. Black 

 spots present on primaries, as in harveyi, 2 basal, 3 transverse anterior, and 4 

 medial. A clean-cut row of black spots checker the fringe. Secondaries; 

 fuscous, whitish toward the base and in the anal region ; in occasional specimens, 

 white. A trace of the medial band, usually so prominent in hlanca, present, 

 never pronounced. Fringe usually plainly checkered at base by a row of black 

 spots. Beneath as in harveyi, but the fuscous and white more contrasting, ex- 

 cept in the occasional pale specimens. 



Expanse: 21-24 mm. 



Genitalia: Similar to blanca, but the uncus has an even broader end, the 

 spine is shorter and quite dorsal ; and the vinculum, while of the same general 

 pattern, has a spine-like tip. 



This species is represented in the Barnes Collection from Reding - 

 ton ; Palmerlee ; Mohave Co. ; and Paradise, Cochise Co., Arizona ; be- 

 sides the types. The Mohave Co. specimens are the ones that possess 

 the pale secondaries. They may represent a race, or even a distinct 

 species, but if so, are remarkably closely allied to sampita in genitalia. 



Type localities and number and sexes of types: "Type", $ , Southern 

 Arizona, (Poling), which is hereby designated the Lectotype; "Type", 9, 

 Wilgus, Cochise Co., Ariz., (Allotype) ; also 1 9 "Typt", Colorado, (Bruce), 

 which is placed in harveyi. 



Grotella blanca, Barnes, (fig. 4). 



1904, Barnes, Can. Ent, XXXVI, 239, Grotella. 1912, B. & McD.. Cont. 

 Nat. Hist. Lep. N. A., I, #4, 11, pi. IV, f. 18, Grotella. 



