515 



loijical Survey, F. G. Sanborn); Conlr;iI Missouri (liiloy); Waro, Tc\.. 

 ^larcli If! (HcllVagc); Grand Rapids, nioiilii nl' S;iskatclic\\Mn, July 11 

 (Sciidder); UocUy Mountains (Grofe); Colorado ( .Mmd i; 1 >idhis, Tex. (Boll. 

 JIus. Coin|). Zool.) ; \ ictoiia, N'anconver Island, July, coninion ((Jro1(di. ^^us. 

 Coiiip. Zoul.); All)any, Greg. (J. I lollciiian) ; Calilornia (Hehrcns); Mi'iido- 

 cino City, Cal. (A. Agassiz, Miis. Com. Zool); Niles, Cal., Fol)ruary 

 (Behrens); Sanzalito, Cal, January G-26, February 9-16 (J. Behrens). 



This is our most common Ibrni south and west of New England (where 

 it is replaced by If. tri/dsclafa), occurring in the Southern States in ]\rarch 

 and in the Middle ami Western States in April and May. It diilers 

 from H. trlfa.sciata by its longer fore wings, more pointed apex, anil oblicpie 

 outer margin, and its usually reddish instead of greenish bands, in the often 

 more sinuate, smoky, submarginal band, and, in those specimens which n)ost 

 nearly approach trlfasciatn, i. e., without reddish tints, tin; middle light band 

 is narrower, while the arrangement of the markings is very much the same. 

 The narrow and pointed fore wings are the best distinguisliing mark. To 

 H. sordidata it is closely allied in the shape of the wings, but differs entirely 

 in the style of the markings; the latt(!r not having the definite basal, middle, 

 and cxtradiscal black lines which characterize H. californiata and trifasclala. 

 An interesting variety (pi. 8, tig. 32), named l)y Professor Zeller Cidaria 

 h'lstriolata has been received from Saint Louis, '^lo., through Mr. Riley. 

 It is a bred specimen, and in excellent condition. The black lines are heavy 

 and almost suffused. The general tint of the wing is olive-green, w ith no 

 lines or distinct markings of any sort between the middle band and the i)asal 

 line; the middle band is nearly white, not reaching the costal edge, which is 

 heavily lined with black, connecting with the apical line; the band is dee])ly 

 scalloped, sending out a large two-scalloped ])rojection in the middle of the 

 wing, and below Iiecoming very narrow, the points of the scallops on o])posile 

 sides in the submedian space nearly dividing the band into isolated round 

 patches. A specimen from Kentucky bears a general resemblance to this, 

 but the ba.se of the wing and the mcnlian band iiave a distinctly yellowish 

 tinge. -A similar form also occurs in Texas. The specimen received from 

 Mr. Riley was 1j red from a pupa li)un(l under bark April 26. I have com- 

 pared Zeller's type (from Texas) in the Museum of Comparative Zoology 

 with Riley's specimen, and find no difference between them. 



In small examples, the median white band is apt to be very wide and 



