423 



Ptcrophorus palcacciis Fernald, Pter. N. A. 45, 1898. 



Id., Bull. 52 U. S, N. M. 445, 1902. 



B. C. Ent. Soc. Check List 43, 1906. 



Meyrick, Gen. Ins. C, 16, 1910. 



Id., Wagner's Lap. Cat. pars 17, 24, 1913. 



Barnes & McDunnough, Check List 151, 1917. 



Britton, Ins. Conn. 103, 1920. 

 Head dark brown, with a brownish white patch between antennae An- 

 tennae with a brown line above. Palpi moderate, slender, oblique, with a brown 

 line outside. Legs brownish white or whitish, fore and middle femora and 

 tibiae striped and tarsi shaded with dark brown. Hind legs similar in color 

 with sometimes a trace of brown at bases of spurs. Spurs rather long. Thorax 

 brownish white to tawny brown, paler in front. Abdomen concolorous with 

 paler part of thorax, with slender parallel brown stripes on all sides. 



Primaries tawny whitish to brownish white, with a broad light to smoky 

 brown shade running from middle of base to costa above cleft and thence out 

 into the first lobe, which it sometimes obscures completely but usually leaves 

 pale along cleft. The cleft is preceded by a variably heavy dark brown dot 

 which is sometimes contiguous to and sometimes slightly before it. There are 

 no marginal dots. In some specimens the brown shade is much heavier and 

 more extensive, and occasionally it suffuses the entire wing. In some of these 

 dark specimens the veins are contrastingly pale in the lobes. Fringes and sec- 

 ondaries a little darker and more grayish. Expanse 19-26 mm. 



Distribution: Type series from Dallas, Tex. It is reported also 

 from Cal. and B. C. but we have seen no specimens from these locali- 

 ties. Our series indicates a range from the Atlantic coast west to 

 Nebraska and New Mexico. We shouM expect it in southeastern 

 Canada. March to Sept. 



There are one male and two female types in the Cambridge Mu- 

 seum, and part of the type series in the British Museum. The types 

 of sericidactylus which we have been able to locate include a female 

 and a male in the Murtfeldt collection at Cornell University, which 

 we have labelled lectotype and allotype respectively, a S and a 9 in 

 coll. Fernald, and one ? now in our possession through the kindness 

 of Dr. J. Chester Bradley of Cornell University. The 9 in coll. Fer- 

 nald is a specimen of keUicottii. An examination of the various types 

 shows that the previous treatment of both species and synonym has 

 been correct. 



Miss Murtfeldt's types were reared from I'ciiwma noi'chora- 

 ccnsis. a species of Ironweed, and her account of the early stages is 

 the only one known to us. We therefore quote her descriptions. 



