18 CLARK — TWENTY-FIVE NEW SPHINGIDAE [v?Mrtil" 



a point 7 mm. from the apex half-way to SC5. A series of vein dots follows 

 the poetmediao line on the upper side of the wing. 



Hind wing below: yellow, faintly tinged with orange, and irrorated with 

 black transverse dots as on fore wing. Irregular clay-colored distal mar- 

 ginal hand, as in X. zurchcri, broadest between R2 and R3, where it at- 

 i mi- a width of 4 mm.; it is bordered with black basally. A dark brown 

 S-ehaped median line extends from anal angle to inner margin, curving 

 first basad, then distally, and lastly basad. Midway between this line and 

 the distal margin is a series of dark vein dots formed by a thickening of the 

 transverse irrorations. 



Xylophanes crotonis zikani subsp. nov. 



Al. ant. long., cf, 35 mm.; 9, 36, mm. Al. ant. lat., d\ 12 mm.; 



9,13 mm. Marg. ext., d\ 20 mm.; 9,21mm. 



Habitat. — Passo Quatro, Minas Geraes, southern Brazil. Two males 

 and one female in coll. B. Preston Clark, one male and one female in coll. 

 Z. J. Zikan. Received from Mr. J. F. Zikan, and named after him. 



This southern form of X. crotonis is smaller than either X. 

 crotonis crotonis or X. crotonis aristor. Its ground tone is brighter 

 green than in the latter, which in other respects it resembles 

 more closely than it does crotonis. The transverse lines of the 

 fore wing are well defined, as in aristor, the first and the 

 fourth lines being heavier and broader than the rest. All these 

 lines are straighter than in aristor. The thoracic patagiae are 

 whiter than in aristor, the pink tinge being less marked. 



There is a marked difference in the black basal area on the 

 under side of the fore wing. In aristor this area extends 

 heavily two thirds the distance to the wing tip along the costal 

 margin, and to a point but 6 mm. distant from the hinder angle 

 on the inner margin. In zikani this area becomes faint on the 

 costal margin half-way to the wing tip, and on the inner margin 

 extends barely half-way to the hinder angle. The posterior 

 margin of this black basal area in zikani is straight from costal 

 to inner margin, while in aristor the posterior margin is convex, 

 turning sharply toward the hinder angle as it approaches the 

 inner margin. 



