﻿Dec 1S95.] Dyar and Morton. New York Slug Caterpillars. 151 



Pupa. — This is characterized as follows by Dr. Chapman : Be- 

 longs to the Incompletje. Less solid and rounded than in the Obtect?e, 

 appendages partially free. Free segments extend upward to the third 

 abdominal ; 7th free in the male, fixed in the female. Dehiscence ac- 

 companied by freeing of segments and appendages previously fixed ; 

 pupa progresses and emerges from cocoon. (Trans. Ent. Soc. Lond. 

 1893, p. 118.) 



Moth. — We shall not treat of the structure or relations of the moth 

 in this series of articles. For the position adopted see Comstock 

 (Wilder Quart. Cent. Book p. 104) Chapman (1. c.) and Dyar 

 (Trans. N. Y. Acad. Sci., vol. XIV, p 54). 



Apoda y=in versa Packard. 



1S64 — Limacodes y-inversa Packard, Proc. Ent. Soc. Phil. Vol. Ill, p. 341. 



18S2 — Limacodes y-inversa Grote, New Check List, p. 17. 



1886 — Limacodes parallela Hy. Edwards, Ent. Amer. Vol. II, p. 10. 



1891 — Limacodes y-inversa Smith, List Lep. p. 28. 



1892 — Apoda y-inversa Kirby, Syn. Cat. Lep. Het. Vol. I, p. 553. 



1894 — Apcda y-inversa Neumoegen & Dyar. Jour. N. Y. Ent. Soc. Vol. II, p. 74. 



Larva. 

 1894 — Apoda y-inversa Dyar, Ann. N. Y. Acad. Sci. Vol. VIII, p. 221 (mature 

 larva). 



Special Structural Characters. 

 Dorsal space broad, narrowing slightly toward the extremities, end- 

 ing behind in the broadly quadrate joint 13, not strongly arched. Lat- 

 eral space broad, oblique, scarcely concave, narrowing a little toward 

 the extremities. Subventral space very small, contracted. Subdorsal 

 ridge at first prominent, later smooth, consisting of the rounded angular 

 change in direction of slope between back and sides. Lateral and sub- 

 ventral ridges moderately prominent, approximate, the lateral at first 

 tubercular, later smooth. Ancestral warts reduced ; in stage I the 

 subdorsal setje ia + ib on joint 4 and i + ii on 5-12 are represented by 

 single spines with a slight central process, which lean in alternating di- 

 rections on successive segments (PI. VI, fig. i); later the warts are repre- 

 sented by tubercles bearing two setce on subdorsal, one on lateral ridge 

 (PI. VI, fig. 8); in the last stage obliterated, the rudimentary setae persist- 

 ing. Subventral setse rudimentary. Depressed areas well developed, 

 though not extraordinarily so, rather small, rounded, slightly sunken, 

 not very sharply defined, smooth. The series numbered i to 8, inclu- 

 sive, may be distinguished. Skin at first smooth, later covered with 

 short secondary spines, and finally with closely-crowded, round, clear 



