294 



coloured cilia are some scattered fuscous-brown scales, two darker tooth-like 

 projections almost fuscous appearing on the dorsal margin of the second lobe. 



"Hind wings pale greyish brown ; the cilia cinereous, internipted with 

 white behind and at the points of the lobes. The third segment has long ciner- 

 eous cilia, interrupted with white at the apex; slightly beyond the middle of its 

 dorsal margin is a very small square projecting tooth of fuscous scales, pre- 

 ceded by a scarcely conspicuous white dash in the cilia. 



"The legs are white, dotted and barred above with fawn-brown ; the spurs 

 white, the joints above them being thickly clothed with fawn-brown scales, 

 from amongst which project some few almost erect white ones. 



"Abdomen whitish, faintly touched with pale fawn-colour at the sides and 

 above posteriorly. 



"Expanse scarcely 10 millims." 



The type series included three specimens taken "near Millville, in 

 Shasta County, California, on the 11th of July, 1871." Two are now 

 in the British Museum and the remaining paratype in the Fernald 

 collection. It agrees very closely with the description. The second 

 specimen which has been before us is in the National Museum. It 

 lacked the abdomen and was slightly more grayish than Walsingham's 

 figure, but we found no reason to doubt that it was true pygmaciis. 

 This specimen was labelled "Washington, D. C. July," so careful col- 

 lecting may prove the species to be much more common and wide- 

 spread than it seems. 



In common with other writers, we have had no opportunity to 

 study the structures of the species so as to settle definitely the status 

 of the genus of which it is the type, but the paratype which we have 

 seen appears to substantiate the customary usage. 



5. Trichoptilus lobidactylus Fitch. PI. XLI, fig. 2. PI. XLIX, 

 fig. 7. 



Ptcyophonis lobidactylus Fitch, Trans. N. Y. Agr. Soc. XIV, 847, 1854. 



Id., 1st. Rept. Ent. N. Y. 143, 1854. 



Morris, Cat. Lep. N. A. 54, 1860. 



Walker, List Lcp. Ins. B. M. XXX, 940, 1864. 



Fernald, Smith's List Lep. N. A. 88, 1891. 

 Aciplilus lobidactylus Dimmock, Psyche III, 389, 1882 (morph.). 



Id., op. cit. 404, 1882 (biol.). 

 Trichoptilus lobidactylus Fernald, Pter. N. A. 15, 1898 (in part). 



Dyar, Psyche VIII, 249, 1898 (biol.). 



Fernald, Bull. 52, U. S. N. M. 441, 1902 (in part). 



Meyrick, Gen. Ins. C, 5, 1910 (in part). 



Id., Wagner's Lep. Cat. pars 17, 4, 1913 (in part). 



