( 3G1 ) 



mnro inimorous ; S with tlirce-conicred or tlirce-tui'ti'il t.iil, side-tufts not ilcvcioiJed 

 iu ? ; seventh steruitc of ? loug trapezilbnu, witliout spines. IMeniiii of midcoxa 

 with faint indication of an angle. Legs slender, smooth-scaled : midtarsns with 

 rudimentary comb, no comb to hindtarsus ; spurs very une(]ual, long terminal one 

 of liindtibia rather longer than the second tarsal segment ; last segment of hind- 

 tarsus (claw excepted) shorter than fourth. Distal margin of forewing regularly 

 dentate, subbasal ])atch of moditied scales of underside rounded-truncate at end, 

 not acumiuiite : H- of hindwing central, D^ longer than D\ lower angle of cell 

 acute. 



c?. Tenth abdominal segment of the same type as in Pseitdosphinx, Ferigonia, 

 Mdilori/x, etc., both the tergite and sternite divided into two lobes ; the tergal 

 I ibes flattened, obtuse, hairy ; the sternal ones long, conical, acute, strongly 

 ihitinised, curved at end, contiguous with tiie tergite, and a little longer than this. 

 ( 'lasper elongate, tongue-shaped, narrowing distally ; a ])atch of many erect, small, 

 lanceolate friction-scales; harpe (Fl. XLV. f. 21.1—24) produced into an obtuse process, 

 which is more or less dilated at end, here sometimes sinuate, its surface smooth. 

 Penis-sheath (PI. LIII. f N. It) with a lirush of s[)ines inside, which break off easily 

 (being present as a rule only in fresh specimens, which have ajiparently not 

 coj)ulated) ; a series of teetli at the right and left edges of the sheath. 



?. Eighth tergite weak, membranaceous for the greater part; vaginal plate 

 with the lateral distal edge more or less free, ridge-like ; distal part scaled, mesially 

 ti-jangular ; orifice proximal, pear-shaped, situated in a large cavity formed by a 

 smooth proximal membrane. 



Larva cylindrical, somewiiat flattened, head strongly slanting in side-view ; 

 liorn short ; thorax with a black mesial patch anteriorly on tiiird segment, 

 generally marked with red and white ; dorsal surface darker in colour than sides 

 and ventral surface, the two colours often separated liy a longitudinal pale line. — 

 Food-plants: (\inra ; Morretna ; Jutropha ij). 



Ciirysalis glossy, polished, pale brown, wings striped with black, abdomen with 

 short transverse black dashes. 



Hub. Tropical and subtropical America : some species wandering nortliward 

 well into the Nearctic region, one as far as Canada. 



The s])ecies are not very difficult to distinguish if oiu^ keeps iu mind that tlie 

 sexes of several sj)ecies are remarkably diftereut, the c? c? of tliese being very much 

 darker on tiie forewing than the respective ¥ ? . Owing to this sexual dichromatism, 

 to individual variability, and to the carelessness of some authors, the synonymy of 

 some species is much involved. But the way was cleared for us, thanks to Mr. W. 

 Schaus, who corrected a number of errors committed by Grote and others. We 

 fear we have not put into the right place some of the species enumerated by Herr 

 von Bonninghausen from Rio de Janeiro under Grotean and Boisduvalian names. 



Key to the species : 



«. Hindwing yellow ...... 2'.I2. 



Hindwing cinnamon-rufous or brownish 

 black or greyish brown ..... 



h. Abdomen with sharply marked black belts . 

 Abdomen without sharply marked black lielts 

 c. Forewing black for the greater part . . 29;i. 



Forewing grey, with (cJ) or without (?) a 



mesial streak from base to apex . . 2'.I4. E. rllo. 



