202 LEPIDOPTERA. 



arizonce, specimens of both sexes being in our collection sent 

 us by Morrison from the neighborhood of Fort Grant." 



Habitat. — Arizona. 



Records. — Carr Canyon, Huachuca Mts, Arizona, Septem- 

 ber 29th and August 15th (Skinner). 



Godman and Salvin in the Biologia Centrali- Americana 

 propose the name Pyrrhopyge arizoncB for the Arizona form 

 based on specimens sent by Morrison, the markings on the 

 underside of secondaries being evanescent. This is true of 

 all the specimens from Arizona that I have examined, none 

 of them showing the distinctive markings of the figure in 

 the Biologia of araxes (PI. 73, f. 15). 



MEGATHYMUS Scud., Rep. Peab. Acad. Sci., iv, 83, 1872. 



Meg-atliymiis yuccae Bd.-Lec, pi. 70, 1833.* 



" Expense of wings from 2.5 to 3 inches. Male. — Upper surface 

 deep umber-brown, the base of both wings tinged with yellow, the 

 markings yellow. The fore wings have a large spot in the outer end 

 of the cell that is subquadrate ; above this in the interspaces are three 

 small spots in an oblique line, but little more than mere dots. Beyond 

 these is a submarginal row of spots which begin in the usual line of 

 anteapical spots about four-fifths of the distance from the base to the 

 apex, but the two spots opposite the cell are nearer the outer margin, 

 and from these they gradually run till the last one is close to the poste- 

 rior angle. The first of the four anteapical spots is a mere dot, the 

 next three are a little longer than wide, the fifth and sixth are narrow 

 but reaching from vein to vein, the seventh and eighth are in the 

 median interspaces, and the ninth is above the submedian. The last 

 three are somewhat irregularly convex on the inner side, but less so on 

 the outer. Hind wings without spots, but with a yellow washing along 

 the outer margin. Underside deep brown, like the upper, but brighter, 

 the outer portion of both wings pearly gray, with a patch of the same 

 color on the middle of the costa of the hind wings, and a white crescent 

 below it, and the same scales sprinkled along the inner margin and 

 the faint streaks through the wings. The spots of forewings are re- 

 peated, but somewhat enlarged, the color paler yellow, whitish in the 

 costal region. Female. — The general color and markings of the fore 

 wings as in the male, but much larger. The spot in the cell extends 

 from vein to vein, and inward along the median a little way toward 

 the base, the three spots above nearly as long as the spot in the cell is 



* Riley, Tr. Ac. Sci. St. Louis, 323-344, 1876 ; id., 8th Mo. Etot. 

 Rep., 169, 1876; id., 9th Mo. Ent. Rep., 129, 1877. 



