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Journal New York Entomological Society. 
[Vol. 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 stimulea 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 Mr. Doll. The youngest larvae 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. cippus , do not refer to this species, 
but to E. indetermina or S. stimulea. 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 11 a pale brown patch like a mass of sand ” on the upper side 
of the lateral horns of joints 6 to n, 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 
