—143— 



taken for part of the leaf rib. During the last stages, if disturbed, 

 it raises the front part of the body, drawing down the head and ex- 

 posing the \i\id mark usually concealed in the fold of joint 4. At 

 the same time it knocks its head and the anterior jwrtion of its body 

 \iolently from side to side. This demonstration, with the sudden 

 appearance of tlie highly colored spot, is doubtless intended to 

 terrify its enemies. 



The duration of the tirst three stages is about four days each, 

 but the last two continue twice as long or more. Pupation occurs 

 in a slight cocoon composed of lea\'es or other loose material, at the 

 surface of the ground. 



Pupa. — Long and slender; \ery lively in its motions if dis- 

 turbed, often giving itself a peculiar rapid rotary motion, the point 

 of the cremaster and head of the pupa only touching the ground. 

 Color very shiny red-brown, curiously marked with black, as foUow^s: 

 on the head above between the eyes, legs and antennae cases each 

 with a streak centrally, wing cases in all the interspaces between the 

 veins somewhat interrupted basally, thorax marked obscurely with 

 several streaks following around its edge, each abdominal segment 

 has a transverse band posteriorly and many little transverse streaks, 

 beside marks between the segments, all becoming more extended 

 posteriorly, so that the last segment is nearly all black, only a brown 

 line being left. Spiracles black ; cremaster flat and broad, with two 

 excavations below, narrowing more abruptly for its last half and 

 ending in a thick blunt spine, all densely punctured. Body sparsely 

 punctured, more thickly between the segments. The wing cases 

 show obsolete creases. Length of pupa about 60 mm. ; greatest 

 diameter 12 mm. Duration of this stage about twenty days. 



Food-plant, Carica papaya. Larvae from Dade County, Fla., 

 near Lake Worth. 



Dilophonota ello Linne. 



Egg. — Nearly spherical, smooth, and of a dark green color. 

 Diameter about 1.5 mm. Laid singly on either surface of the leaf 



First Larval Stage. — Head pale yellow, the mouth paler, 

 but the eyes and ends of jaws black. Width probably 6 mm. Body 

 pale green, with a dark dorsal shade _ Later it is seen to be annu- 

 lated and dotted with small, pale whitish spots. An obscure white 

 subdorsal band. The caudal horn is black, 2.5 nVm. long. Length 

 of larva 6 mm. 



Second Larval Stage. — Head pale greenish yellow, not 

 shiny. Mouth and palpi paler; an obscure vertical pale line. Eyes 



