486 WILLIAM T. M. FORBES 



mayrana Hiibner, the reverse of apiciana, being blackish brown, with a fine, clean- 

 cut yellow or white stripe from base to apex. 



centrovittana Stephens, with the yellow or tawny longitudinal stripe crossing the 

 typical transverse pattern; which is rather clean-cut and moderately contrasting 

 in shades of brownish gray, as in the typical form. 



The forms in this list were all described from Europe, but most or all are repre- 

 sented in America; besides these, the following were originally described from 



American specimens : 



llavivittana Clemens, with a yellow dorsal stripe below the fold: it may be con- 

 sidered the representative of combitstana. 



perspicuana Robinson, pale gray with contrasting blackish base. 



celiana Robinson, red-brown with normal pattern in violet-gray; and yellowish, 

 rather than black, tufts. 



hudsoniana Walker, from west of Hudson Bay; described as blackish, with a paler 

 quadrate patch in the cell and no other decided markings. (I have not seen 

 it, and Kearfott notes that it is not a form of hastiana. A black form of 

 hastiana occurs, however, at McLean, New York.) 



ptychogrammos Zeller, perhaps also a distinct species, described from Texas; 

 dwarf (15 mm.); gray, with well-marked brown costal triangle; a longitudinal 

 black streak in fold to three-fourths, and the black triangle edged inwardly with 

 black. 



albilineana Kearfott, violet-gray, with a white stripe from base to apex, leaving 

 a gray costal edge, and edged below with blackish. (I am not at all sure that 

 this is a variety of hastiana. Very possibly the tufting is unstable and several 

 of these nominal species should be united.) 



18. P. maccana Treitschke. Tufts almost obsolete, but with the antemedial one 

 in the fold distinct; a black dot or streak, sometimes slightly raised, in ceil Cu,, 

 almost directly below the lower tuft in cell; unlike the hastiana series, where the 

 tuft or dot if present is well basad of the discal ones. Dull brown, somewhat 

 shaded and frosted with pale violet-gray; usually very slightly, but in the only 

 specimen seen from the United States, heavily, except for the dark base and the 

 triangular patch on costa. Two fine, somewhat irregular, oblique lines from costa, 

 the inner at two-thirds way out, much as in P. fishiana, which however is per- 

 fectly smooth-scaled. 20 mm. 



Larva on Vaccinium and Lcdum. 

 Europe; Winchendon, Massachusetts. 



19. P. maculidorsana Clemens. Light violet -gray, shaded with brown beyond the 

 principal row of tufts, which are all practically in line. A triangular dark patch 

 on inner margin near base, with the black tuft in the fold at its apex, as in some 

 specimens of hastiana. 17-20 mm. 



Variety inana Robinson is all light dull gray, and wholly without contrasts. 

 New Hampshire and New Jersey to Nevada; apparently only the variety in 

 Nevada. 



20. P. variana Fernald. Outer tuft in fold directly below the outer discal ones, 

 which are more erect than in the hastiana group; tuft or black dot in Cu t far 

 basad of them, resulting in a long inward-projecting tooth on the outer boundary 

 of the pale antemedian fascia. Markings white, gray, and black; or often with 

 yellow, either as a basal patch or a longitudinal stripe; antemedial fascia broad, 

 paler, often pure white, preceded and followed by narrow blackish irregular bands, 

 which often are contrasting. 



New York to British Columbia; the larva on spruce and often very common 

 northward. New York: Mt. Whiteface, just below the tree line. 



21. P. permutana Dupouchel. Reddish wood-brown, shaded with yellow, especi- 

 ally toward base of wing; with a blackish patch near base of inner margin; and 

 shading at apex and beyond the antemedial fascia. Tufts strong, the one toward 



