84 Journal New York Entomological Society. [Voi. x. 



less shaded with bright reddish-brown. Bristles diverging in stellate 

 groups, of uneven length ; those of warts i and ii black ; the other 

 warts have the larger bristles black, the smaller ones whitish. Tho- 

 racic legs brown, abdominal ones concolorous with body ; venter 

 sooty olive. 



Stage IV. — Pronounced changes are only in size and the more 

 marked colors. Average length of larvae 1.25 cm.; width of head 1.5 

 mm. The white band is inclined to separate into spindle-shaped 

 spots. Lateral area dull brown ; below this brown zone dusky amber 

 to obscured orange. Warts black, shiny ; bristles on stigmatal tuber- 

 cles and below grayish with a few black ones. 



Stage V. — During this stage the larvae attain an average length of 

 2.2 cm. when resting. Width of head 1.8 ram.; width of third and 

 fourth segments 4 mm. Head black, polished ; setre of various 

 length, sparse ; epistoma, mouth parts and antennje sordid whitish, the 

 latter tipped with black. Neck pale reddish-brown. Body subdor- 

 sally and laterally more or less dark dull brown, with black tubercles 

 and bristles ; space below sooty-amber, variable in shade, warts black. 



Bristles of stigmatal warts and downward pale rust-red as is also the 

 hair bent over vertex of head. The dorsal white band is separated 

 into spindle-shaped or rounded spots, which in some individuals be- 

 come obscured. Stigmata elliptical, deep ochre with black rim. 

 Thoracic legs black, prolegs blackish above ; feet ochre. 



Stage VI. — Average length of larvte 3.0 cm.; width of head 2.5 

 mm. In general the whole area above stigmata is deep velvety black; 

 warts bright with black bristles. A row of prominent, mostly rounded, 

 spindle-shaped or even diamond-shaped white spots, from first to 

 seventh abdominal somites ; no spot or trace of one on the prothora- 

 cic or anal segments. On second, third and eleventh somites, the 

 white color is reduced to dots or a narrow line. Some of the larvae 

 have the white spots much obscured and dusky. In a few they are 

 dark slate- colored or scarcely traceable at all. Below the stigmata 

 to the pedal line the color is dull coffee -brown and the bristles as well 

 as those overshading the head are more or less rust-red. Thoracic 

 legs black, joints within greenish-white ; prolegs dull pale blackish. 



With some of the larv^ the stigmatal and suprastigmatal areas ap- 

 pear almost banded. This has its cause apparently in the insufficiency 

 of dark pigment spreading from the bases of the warts, the dusky amber 

 or orange color of the skin being not entirely overcome. 



