100 



Sexes similar; the male somewhat more heavily marked than the female. 

 Expanse: $, 24 mm.; 9, 26 mm. 



Somewhat similar in general habitus to some of the species of 

 Phyciodes. The present species is not in the collection of the National 

 Museum from Mexico or South America; neither do the authors find 

 any species in the Biologia, nor in Seitz, which at all resembles it. 



Type localities and number and sexes of types: Holotype $, Chiricahua 

 Mts., Cochise Co., Ariz.; Allotype 9, Paradise, Cochise Co., Ariz. 



MEGATHYMIDAE 



Megathymus mariae sp. nov. 



6 . Head, thorax and abdomen mixed with blackish-brown, fulvous, and 

 grey. Ground color of primaries deep blackish-brown; basal area covered with 

 fulvous hair ; a fulvous spot near costa at end of cell ; an irregular fulvous 

 s. t. band composed of spots as follows, an outwardly oblique patch on costa, 

 one spot above and one below vein 5, parallel to outer margin, followed by 

 a disconnected band of three spots parallel to outer margin, placed respectively 

 between veins 4-3, 3-2, 2-1. Secondaries: ground color deep blackish-brown; 

 basal area covered with fulvous hairs ; a s. t. fulvous band, broken by the 

 black veins. Fringes of all wings fulvous and black checkered. Beneath : disc 

 of primary brownish-black; fulvous spots as on upper side, the apical spot 

 obscured by a conspicuous, apical, whitish-grey shade, which is continued thru 

 the terminal area to the inner margin, so that only the spot at the end of the 

 cell and the spots between veins 4-1 are distinct : secondaries blackish, suffused 

 with whitish-grey shadings; a whitish spot above cell; an obsolescent band 

 below cell, connecting in the anal region with a whitish s. t. band which is 

 practically a duplication of the s. t. band of the upper side, but whitish instead 

 of fulvous. Fringes as on upper side, but with the fulvous replaced by whitish. 



9 . Similar to male, but with the fulvous markings larger ; primary with 

 the spot at the end of the cell almost joined to the transverse s. t. band, which 

 is only interrupted by the black veins; apical grey shade on underside of pri- 

 mary not conspicuously obscuring the apical spots. 



Expanse: $, 44-48 mm.; 9, 45-54 mm. 



Genitalia: similar to ncumocgcni and polingi; uncus furcate, forming two 

 distinct hooks ; the harpes and their appendages quite different in shape from 

 allied species. 



In habitus intermediate between polingi and neumoegeni; froin 

 the former it may easily be distinguished by the fact that the widest 

 spot of the fulvous s. t .band is between veins 2-1 ; whereas, in a series 

 of thirty-six polingi before the authors, the spot between veins 2-1 

 is narrower than the spots between veins 3-2 and 4-3 ; the female 



