304 



3. Pterophorus cygnus n. sp. PI. XLIX, fig. 2. 

 fOxyptilus tenuidactylus Fernald, Pter. N. A. pi. VI, ff. 4-6, 1898(?). 



We are unable to point out any superficial differences between cygmis 

 and tenuidactylus except in the abdomen, hence the description of the latter 

 species will answer almost completely for this. The hind legs of the unique 

 t>-pe are unfortunately lacking, but in species otherwise so close we think it 

 unlikely that they would show any marked difference. The abdomen differs 

 from that of tenuidactylus in that every segment is marked more or less with 

 white above, including the fourth. This, together with the third and fifth, is 

 heavily marked. Beneath, the fourth segment bears two white dashes, while 

 the others are mostly brown. Expanse 13 mm. 



Described from one male, (holotype) taken at Iowa City, la., July 2, 

 1918, by A. W. Lindsey, and now in coll. Barnes. 



In the male genitalia differences are found in the uncus, vinculum 

 and valves as shovvn in the figures. The oedeagus was lost in making 

 tlie slide. Fernald's figures agree except in the shape of the vinculum. 

 Since Fernald removed the entire abdomen for study, we are unable 

 to check this by superficial characters. 



4. Pterophorus raptor Meyrick. PI. XLI, fig. 6. PI. XLIX, fig. 3. 



Oxyptilus raptor Meyrick, Trans. Ent. Soc. Loud. 1907, 478, 1908. 

 Id., Gen. Ins. C, 7, 1910. 



Id., Wagner's Lep. Cat. pars 17, 8, 1913 (in part). 

 Barnes & McDunnough, Check List ISO, 1917 (in part). 



The original description is as follows : 



"9. 19 mm. Palpi whitish, spotted with dark fuscous. Abdomen brown 

 mixed with dark fuscous, segmental margins mixed with white. Legs white, 

 lined and banded with dark fuscous. Forcwings cleft from beyond middle, 

 segments narrow, first pointed, second somewhat dilated, its apex long, acute, 

 termen concave ; ferruginous-fuscous, irrorated with dark fuscous ; a small dark 

 fuscous spot on base of cleft; first segment crossed by two inwardly oblique 

 whitish bars at 1/3 and 2/3, former rather broad, latter slender; a similar bar 

 crossing second segment at 2/3; cilia dark fuscous, on costa more blackish, 

 and barred with whitish on costal markings, beneath apex with two whitish 

 bars, on termen of second segment whitish except toward angles, on dorsum 

 mostly whitish with dark fuscous bars before and beyond cleft, and a dark 

 fuscous patch towards tornus. Hind-wings cleft firstly from 2/S, secondly 

 from 1/4, segments very slender; dark fuscous, third segment brownish- 

 ochreous from base to near 2/3 and at apex ; cilia fuscous, both margins of 

 third segment with a patch of blackish scales extending from before 2/3 of 

 segment to 5/6. 



"Colorado, U. S. ; one specimen." 



