( 4 1.-) ) 



S. Clasjier witli frictiou-ticales ; no {tatcli of spiuos above liarjio ; jjeiiis-l'iiDiiul 

 mostly with special armature. 



Early stages not knowu. 



Hal). Tropical and Subtropical Auuriia, from Mexico to Buenos Ayres. 



Twelve species. 



The position of N. /it/postictu has been entirely misunderstood by the writers 

 ou Sphinyidae. The species has nothing whatever to do with '■'■ Ambuli/j-," with 

 which JVt/ceiyx is generally associated. It cannot be separated generically iVdin 

 ericea, cojfeae, etc. 



Key to the species : 



a. Forewiug below with conspicuous yellow 



spots from base to disc . . . .347. S. In/posticta. 

 Forewiug below without yellow si)ots in basal 



half . . . .' b. 



h. Yellow area of hindwing, above, extending to 



abdominal edge, at least in middle .... y. 

 Abdominal margin of hindwiug brow-n .... r. 



c. Basal area of forewing below yellow . . 351. S. tnritn. 

 Basal area of forewiug below brown . . . . d. 



d. Yellow area of hindwing, aViove, traversed by 



a broad discal band ..... 34'.i. S. cojf't'oe. 

 Hindwiug without continuous discal band . . . e. 



e. Forewing below variegated with ochraceous 



or white halfmoons . . . . . . . /'. 



Forewing below not variegated with ochraceous 



or white halfmoons, palpus without white 



dot ........ 3o0. A', magna. 



J. Hindwing above yellow, with a conspicuous 



black spot at end of cell, and another ou 



disc behind SO- ; forewing below almost 



unicolorous, with a patch of conspicuous 



whitish halfmoons anteriorly on disc . . 348. N. ertcea. 

 Hindwing above more or less rufous, seldom 



more ochraceous, with vestigial brown 



spots, autemedian band of forewing not 



filled in with black ; fringe of meso- 



thoracic tegula brown .... 3.i3. A', nirtifans. 

 Hindwing above yellow, ajiex of wing 



viuaceous-rufous ; fringe of mesothoracic 



tegula almost white : antemedian band of 



forewing tilled in with black ; white spot 



of palpus consi)icuous .... 352. S. maxiirlli. 



(J. Black submarginal line of forewiug, which 



runs from apex to hinder angle, strongly 



angulated in luidiUe . . . . . . . h. 



Black submarginal line of forewing, which 



runs from apex to hinder angle, evenly 



curved j. 



