340 AMERICAN LEPIDOPTERA. 



Petrophora volncer Hulst (Trans. Am. Ent. Soc, xxiii, 293, 1896). 



One female type of this very interesting species is in the Hulst 

 collection, and is the same as Ccenocalpe morrisata Hulst described 

 almost ten years earlier as a Marmopterijx (Ent. Am., ii, 190, 1887). 

 The specific name mormafa should be referred to Pe^rojo/iora, which 

 is the correct genus for the species with volucer as a synonym. I 

 have other specimens from Stockton, Utah (Spalding) and Doble, 

 California. 



Petrophora spaldiiigaria n. sp. 



Expanse 28 mm. Palpi, head and thorax with mixed brown and cream-colored 

 scales, the brown ones predominating on the head, the cream-colored ones on the 

 thorax. Abdomen almost uniform cream colored. Ground color of both wings 

 light cream colored, with brown scales scattered over the surface, rather piofusely 

 on the primaries, much less so on the secondaries. Primaries with costal edge 

 almost straight, outer edge also only slightly curved. The veins are faintly yel- 

 lowish, especially in the centre of the wing and in outer area and particularly 

 near the apex. Basal line not far out from insertion of wing into thorax, brown, 

 strongly but evenly outcurved. Intradiscal line brown, begins on costa over 

 one-third ont, runs almost straight toward center of wing to discal cell, then 

 twice dentate to fold through middle of cell Cu.2, and strongly bent inward to 

 inner margin, ending one-third the length of this margin out from base. Extra- 

 discal line less than one-third in from apex, twice strongly waved outwardly to 

 Cu.j, then far inward and outward again to inner margin, being drawn in acutely 

 on Cu.2 and on fold, then roundly scalloped to inner margin. Subterminal line 

 almost parallel with outer margin as a rather faint shade line, scalloped exter- 

 nally and becoming diffused internally, the second scallop from costa being dark 

 and appearing as a brown apical spot. Terminal line brown, broken so as to 

 form small spots on each side of the veins. Basal and median areas much darker, 

 that is, much more heavily strewn with brown scales, than the sub-basal and 

 outer areas. Discal spot brown, linear, fused into the extradiscal line by a deep 

 brown shading and followed outwardly by a rather clear space of ground color 

 which is bordered externally by a faint indication of a median line. Fringe 

 concolorous with wing. Secondaries with only a slight scattering of small brown 

 scales, most apparent on outer half of wing. A single brown line, broad and 

 diffused at the edges, crosses the center of the wing; this extends outward from 

 costa, where it is weakest, and runs with several waves to inner margin. Ter- 

 minal line as in forewings but poorly marked. Discal spot so minute as to be 

 almost indiscernible. Beneath : the wings are pale, the basal portion of fore- 

 wings dusky, and the extradiscal line as well as the transverse line of hindwings 

 are broad and diffused. Discal spots small, linear, distinct. 



Safe.— Stockton, Utah, October 9, 1902 (Spalding). 



Type. — One male in my cabinet. 



Scelolophia formosa Hulst (Trans. Am. Ent. Soc, xxiii, 301, 1896). 



This is the same as Grote's Acidalia jnirpiirissata (Can. Ent., iii, 

 103, 1871), which was erroneously referred by Packard (Mono., p. 



