except the upper and posterior parts which are pale brown where 

 usually withdrawn into segment 2, eyes black; cervical shield 

 darker than rest of body with dorsal white line less prominent 

 than on other segments, the sulxlorsal lines more prominent. 

 All prolegs now fully developed. 



4th stage — 15-l7mni. ; much more mottled and variegated 

 than preceding stage with black, browns, olivaceous, yellowish 

 and Mdiitish, the darker colors predominating ; two more or less 

 conspicuous sub-dorsal rows of black spots on segments 7-12, a 

 broad paler region on dorsum between these, in the middle of 

 which is a series of obscure lozenge-shaped darker spots; head 

 mostly black except the periphery (portion covered when re- 

 tracted) which is pale brown; two conspicuous whitish sub- 

 dorsal spots on segment 6 ; posterior sub-dorsal parts of seg- 

 ment 12 and upper parts of segment 13 yellowish; spiracles 

 black, a yellowish streak below them ; tubercles not conspicuous, 

 same color as place where situated, hairs short; 12th segment 

 quite swollen. 



5th and 6th stages — very similar to fourth stage, but usually 

 darker, almost black. When full-grown 26-32nun. long. When 

 disturbed the caterpillars drop from the leaf where feeding 

 and mostly lie straight and rigid, feigning death. W^hen smaller 

 they dropped and curled up when disturbed. 



The caterpillar in breeding-cage ate leaves of sweet potato, 

 bean, Porfvlaca, grass and ''honohono" (Commelina). They 

 did not take readily to sugar-cane. In nature they have not 

 been found injuring any cultivated plant or crop, but it is 

 possi])le that they might do so later on if they become more 

 abundant. 



The five molts occur at intervals of 3-9 days, usually about 

 4 days ; and the caterpillars become full-grown in 30-40 days. 

 The pupa is formed in the soil, an inch or two below the sur- 

 face. It is 13-1 5mm. long; uniform medium brown, eyes black, 

 Aving-, leg-, ajid antenna-cases extend to apex of 4th abdominal 

 segment; articulations between segments 4-7 movable; a row 

 of about 20 pits on dorsal part of basal margin of segments 5, 

 6 and 7, from the ends of these rows a band of punctures extends 

 around the ventral side; apex of abdomen blunt and rounded, 

 with two dark spines placed near together, their tips converging, 

 slightly ventrally curved. Pupal period 12-14 days. 



