LEPIDOPTERA 



677 



the back, but converge again on the seventh and eighth abdominal 

 segments. This yellow subdorsal line is bordered without by a milk- 

 white stripe; and extending from this stripe over the side of the bod\^ 

 there is a whitish shade which fades out below. The moth is ash 

 colored, with the fore wings crossed by two wavy lines between which 

 the wing is darker ; between the outer wavy line and the outer margin 

 of the wing there is a faint band. 



Antler ed larvcs: — Among the remarkable forms exhibited by no- 

 todontian larvae are those of the freshly-hatched larvae of the species 

 of Heterocampa. Figure 844 repre- 

 sents the first instar of Heterocampa 

 vdria, which has on the first thoracic 

 segment a pair of large antler-like 

 horns, and other horns on several of 

 the abdominal segments. In the 

 second instar all of these horns are 

 wanting except small vestiges of the 

 first pair. This species feeds on oak. 



The freshly hatched larva of 

 Heterocampa guttivitta is also ant- 

 lered. The horns borne b}" the pro- 

 thorax are four-branched and there 



are eight-pairs of horns on the abdomen. As in the preceding species 

 all of these horns are wanting in the second instar except vestiges of 

 the first pair. This species feeds especially on maple, but has been 

 found on other trees. 



Fig. 844. — Heterocampa varia, larva. 

 (After Packard.) 



Fig. 845. — Schiziira concinna, larva. 



The red-humped apple-worm, Schiziira concinna: — -The larva of this 

 species (Fig. 845) is common on apple and alhed plants. The head 

 is coral-red, and there is a hump of the same color on the back of the 

 first abdominal segment; the body is striped with slender black, 

 yellow, and white lines, and has two rows of black spines along the 

 back, and other shorter ones upon the sides. When not eating, the 

 larvae remain close together, sometimes completely covering the 

 branch upon which they rest. This species passes the winter in the 

 pupa state. The adults appear in June and July. 



