331 



The primaries appear to be gray with blackish marks, but under a lens 

 they are seen to be more ochreous-brown with dark brown patches, with white 

 irroration forming a trace of transverse wavy Unes and dotting the brown 

 costa. The brown triangular spot is poorly defined toward base of wing. Cell 

 with a brown spot. Our one female has the basal half of the cleft margined 

 with dark brown and the outer white line preceded by heavy dark patches 

 which are apparently continuous to the naked eye. Terminal area distinctly 

 hoary. Apex rather prominent. Fringes brownish gray with whitish bases 

 containing brown and white scales. Inner margin with numerous scattered 

 black scales and a few small clusters. Secondaries gray-brown with concolor- 

 ous fringes. Third lobe with a slight triangular scale tooth at middle, as in 

 carduidactyla, preceded by scattered black scales. 



We have the following note on the type : Unique type lacks the 

 subterniinal dark area of the compared specimen, this region being 

 even brown. Otherwise type is less contrasty. The two agree in the 

 form of markings, palpi, and fairly well in the scales of the third 

 feather of the secondaries ; here the compared specimen has a more 

 definite tuft. 



Grinneirs type was reared from the head of a composite flower 

 at Lake Merced, San Mateo Co., Cal., in May. Our specimen is 

 labelled "Larva in flowers of Grindelia robusta. Alameda Co., Cal. 

 Dec." Considering this similarity of larval habit and several peculi- 

 arities common to the two imagines, notably the long palpi and position 

 of the scale tooth, we think that the two specimens are of the same 

 species and that the adtlitional data supplied by ours may be applied 

 here without hesitation. 



14. Platyptilia orthocarpi Walsingham. PI. XLIH, fig. 4. 



Platyptilus orthocarpi Walsingham, Pter. Cal. Ore. 11, pi. I, f. 9, 1880. 



Dimmock, Psyche III, 403, 1882. 



Hy. Edwards. Bull. 35 U. S. N. M. 136, 1889. 

 Platyptilia orthocarpi Fernald, Smith's List Lep. N. A. 87, 1891. 



Id., Pter. N. A. 29, 1898. 



Id., Bull. 52, U. S. N. M. 443, 1902. 



Meyrick, Gen. Ins. C, 11, 1910. 



Id., Wagner's Lep. Cat. pars 17, 14, 1913. 



Barnes & McDunnough, Check List 150, 1917. 

 Head and palpi brownish ochreous, the latter moderate, oblique, touched 

 with white above and below. Antennae W'ith dark dots above. Thorax mostly 

 whitish in front and behind, brownish ochreous across tips of patagia. Legs 

 whitish with pale brownish shades, the fore and mid tibiae sometimes with 

 traces of stripes lost in the dark areas. Abdomen brownish ochreous with two 



