No. 2305. ON SOME FOREST LEriDOPTERA—HEINRICH. 5T 



predominating color of the wing on outer half, a light golden brovai; 

 cilia black at base, paler beyond and shading again to black at 

 extremeties. Hind wings pale, smoky brown; underside lighter 

 with small patches of brown scales at apex and a thin interrupted 

 line of brown scales along termen; cilia grey. Fore and mid tibiae 

 and tarsi white, banded and dusted v/ith blackish brown; hind legs 

 white with a few scattered brown scales on tarsi. Abdomen grey- 

 ish white. Male genitalia of type figured. Alar expanse, 16-17 mm. 



Habitat. — ^El Paso County, Colorado, (W. D. Edmonston) [type 

 locality] and Palmer Park, Colorado (J. H. Pollock). 



Focd 'plant. — Pinus scopulorum. Tliree moths reared under Hopk.. 

 U. S. Nos. 10764« and 1393 1(Z from larvae inhabiting pitch nodules 

 and feeding on terminals of branches. Moths issued May 5, 8 and 

 25, 1916. 



Type.— Cat. No. 21799, U.S.N.M. 



This species is very close to E. metaUica Busck but easily distin- 

 guished by its lighter and more brilliant coloring. The tegumen 

 and basal half of the harpes of the male genitalia are also somewhat 

 broader than in metaUica. 



EVETRIA ALBICAPITANA ARIZONENSIS, new variety. 



Plate 1, fig. 4. 



From a number of cuttings of Pinus cemhroides from the Santa 

 Catalina Mountains, Arizona, infested hj nests of a TetralopJia species 

 were also reared two specimens of a nodule-makmg Evetria which I 

 at first thought were E. albicapitana Busck. A careful study of 

 the genitalia, hovrever, shovrs a rather consistent difference between 

 the two forms in the shape of the harps. The typical albicapitana 

 has the costa almost straight to the tip of the cucullus while m the 

 Arizona specimen it is distinctly concaved (figs. 4 and 5). The 

 Arizona specimens are also smaller than the smallest specimen vre 

 have of the true albicapitana. The head and face is pale rust color 

 rather than white, and the ground color of the forevv^ings is pale 

 rusty brown; lacking the rich dark reddish brown tinge of the 

 typical alhicapitana. Otherwise the two forms are identical. 

 "V'VTiile such differences are hardly sufficient in this group to justify 

 the erection of a new species, especially as we have such scanty 

 material from Arizona and are by no means certain as to the range of 

 albicapitana (we have it so far only from Canada, Wisconsin, Mon- 

 tana, and Idaho), they do compel at least a varietal differentiation 

 for the Arizona form. 



Habitat. — Santa Catalina Mountains, Arizona. (G. Hofer.) 



Food Plant. — Pinus cembroides. Two moths reared June 20 

 and 23, 1917, under Hopk. U. S. No. 13977 from larvae mining 

 the branches. 



Type.— C&t. No. 21800, U.S.N.M. Male genitalia of type figured. 



