60 Journal New York Entomological Society. [Voi. v. 



The species is single brooded in New York. The moths fly in the 

 last of June and in July. The eggs are deposited in the evening, before 

 ten o'clock, usually singly, or but few together, not in the rather large 

 patches of Sibine. They hatch in seven days. The larvae pass through 

 the usual eight stages, occasionally nine. In this case a stage is interpo- 

 lated between the last two. It usually is like stage VII, but may be 

 like the last stage with the presence of detachable spines. The first stage 

 is quickly passed through without feeding, but afterwards development is 

 more slow. Mature larvae may be found in September. 



The coloration of these larvae is much less conspicuous than that of 

 Sibine stimitlea and their defensive armor is weaker in proportion, the 

 spines being distinctly less venomous. 



Miss Morton has obtained fertile eggs of the Long Island form from 

 cocoons collected by INIr. Doll. The youngest larvce which I have found 

 in the field have been in stage III. 



Criticism of Previous Descriptions. 



The references to Abbot & Smith, Harris, Morris, Packard and 

 Duncan, given in Edwards' catalogue of transformations of N. A, 

 Lepidoptera under the heading E, cippiis, do not refer to this species, 

 but to E. ijidetennina or ^. siimulea. The present references are to 

 descriptions or figures of the mature larva and cover the principal col- 

 orational forms. This larva has been on the whole so slightly investi- 

 gated that there is little of a positive nature to correct. Dr. Packard's 

 latest description is full and very good. He says " there seem to be no 

 caltropes ... in the cuticle of this genus," but above (page 90) he 

 describes " a pale brown patch like a mass of sand " on the upper side 

 of the lateral horns of joints 6 to 11, which are really the patches of 

 caltropes, though he failed to recognize them. The detachable spines 

 are correctly located, but not described in detail. The lateral horns 

 are not referred to their respective segments, and the position of the 

 spiracle on joint 5 is not described. 



Dr. Packard's remarks on page 91 agree with my own views, except 

 that I regard this species as tending to become protectively colored, the 

 bright warning color having partly disappeared. Hence the habits of 

 concealment exhibited by the larvae. 



Description of the Several Stages in Detail. 

 My description of these stages of the Florida form will suffice for 

 the New York ones. At first all are alike, though the mature larva is 



