22 



Genitalia: similar to spauldingi, but the uncus is slightly broader near 

 the tip with a somewhat dorsal spine ; the vinculum is produced to a very 

 pronounced, long and recurved point. The spine patch of the penis appears to 

 be somewhat smaller, and the spines, in general, somewhat longer and slenderer. 

 The valves are differently shaped and considerably longer. The authors have 

 observed considerable care in getting the valves very near to the same angle in 

 all of the spauldingi group, as a very slight turning of such a simple valve im- 

 mediately conveys the idea of a different shape. 



Type localities and number and sexes of types: $ Holotype and 1 $ 

 Paratype, Denver, Colo.; 5 Allotype, "Colo.", (Oslar). No dates on any of 

 the specimens. 



Neogrotella spauldingi, B. & McD. (fig. 15). 



1913, B. & McD., Com. Nat. Hist. Lep. N. A., II, #3, 105, pi. IV, f. 1 

 ("Type S"), f. 2 ("Type $"), Grotella. 



Front as in septempunctata, but the central prominence is distinctly beak- 

 like without an additional central hollow. Fore tibia with a short spine-like 

 inner claw and about three slender spines above ; on the outer side with a heavy 

 claw-like spine, nearly as long and heavy as the inner claw, and with about four 

 slender spines above. Mid tibia spined. Hind tibia apparently lacking the spine 

 between the spurs. 



Head, collar, thorax, and ground of the primaries cream color of varying 

 intensity. T. a. and t. p. lines brownish-black, tending to become punctiform 

 and usually partly obsolescent. Fringe pale, immaculate. Secondaries : smoky. 

 Fringe pale, immaculate. Beneath : primaries, smoky with pale costal, outer and 

 inner margins. Secondaries pale. Fringes uncheckered, immaculate. 



Expanse: 22-23 mm. 



Genitalia: uncus very slightly broadened toward the tip, nearly cylindrical, 

 the tip produced into a spine which is apical ; the tegumen rather heavy ; the 

 point of the vinculum is not sharp; a patch of rather long spines present on 

 penis, taking up about one- fourth of the aedoeagus; valves very simple, lobate, 

 showing some thickenings and foldings of the chiten which ultimately may pro- 

 duce a form similar in genitalia to G. stretchi. 



This species is in the Barnes Collection from type localities only. 



Type localities and number and sexes of types: "Type S", Vineyard, 

 Utah, VII-14, hereby designated the Lectotype; "Type ? ", (Allotype), Vineyard, 

 Utah, VI-8; 7 "Cotype(s)", (Paratypes), all $'s, as follows, Provo, Utah, 

 VI-30, Vineyard, Utah, VI-8 (3), VII-7, 9, and 11; all from Mr. Tom Spauld- 

 ing. 



Neogrotella mcdunnoughi, sp. nov. (fig. 16). 



1916, B. & McD., Cont. Nat. Hist. Lep. N. A., IV, #2, 92, pi. XVII, f. 16, 

 spauldingi, Grotella. 



