PLATYPTILUS. < 



but crossed by a slender pale waved line running 

 parallel to it. A brownish line runs along the 

 base of the cilia, terminating in a brownish- 

 fuscous shade at the anal angle. The cilia on 

 the dorsal margin are brownish fuscous except 

 immediately before the anal angle, where they 

 are very pale fawn-colour. 



Hind wings fawn-brown, with paler cilia, except those 

 on the dorsal margin of the third lobe, which 

 are tinged with brownish fuscous. 



Legs and spurs very pale fawn-colour. The hinder 

 extremities of the third pair of tibiae slightly 

 darkened. 



Expanse 36 millims. 



I took three specimens of this large and distinct 

 species on M'Leod Creek, near Mount Shasta, Cali- 

 fornia, at the latter end of August 1871. 



Platyptilus cardui. 



(Plate I. Fig. 6.) 



PteropJiorus carduidactylus, Riley, Rep. Ins. Miss. i. 1869, pp. 180, 



181, pi. 2. figs. 13, 14. 

 Platyptilia cardui, Zell. Stet. ent, Zeit. xxxii. p. 17*J ; Verh. z.-b. 



Ges. Wien, 187'3, xxiii. p. 318. 



I have adopted Zeller's name for this species in 

 preference to the mixed name originally given to it 

 by Professor Riley. It occurred in Northern Cali- 

 fornia in Junel872, flying among mixed growth at 

 springs on a hill-side. The specimens are perhaps 



