OF THE 
JQffo 39orfe 6|nforaoIogirflI Koriffg. 
Vol. VI. MARCH, 1898. No. 1. 
THE LIFE-HISTORIES OF THE NEW YORK 
SLUG CATERPILLARS—XIII-XIV. 
PLATE I, FIGS. I —12. 
By Harrison G. Dyar, A.M., Ph.D. 
Packardia geminata Packard. 
1864 — Cyrtosia geminata Packard, Proc. Ent. Soc. Phil. Ill, 343. 
1864— Cyrtosia albipunctata Packard, Proc. Ent. Soc. Phil. Ill, 344. 
1865— Cyrtosia ocellata Grote, Proc. Ent. Soc. Phil. IV, 322. 
1866 —Packardia geminata Grote & Robinson, Ann. Lyc. N. H. N. Y VIII 
373- ‘ ’ ’ * 
1880— Fackaraia goodellii Grote, Can. Ent. XII, 242. 
J ^ 94 —Packardia geminata, albipunctata Neumoegen & Dyar, Journ. N. Y. 
Ent. Soc. II, 109. 
Larva. 
^i—Dyar, Trans. Am. Ent. Soc. XVIII, 157. 
1891—Dyar, Can. Ent. XXIII, 277. 
1893— Packard, Proc. Am. Phil. Soc. XXXI, 107. (as “ Larva of Hetero- 
genea ( 7 ortricidia ?) ”) 
1894— Dyar, Ann. N. Y. Acad. Sci. VIII, 222. 
Special Structural Characters. 
Dorsal space moderately broad, flat, narrowing to both extremities, 
arched; lateral space broad, oblique, narrowing to the ends; subven- 
tral space two-thirds as wide as the lateral one, distinct, only slightly 
retreating, suddenly narrowed in front, tapering behind. Ridges 
tubercular and setiferous till the last molt, then smooth; subdorsal 
ridge obsolete, indicated by the rounded angular change in direction 
between back and sides; lateral ridge slight, dividing the lateral and 
subventral spaces, subtubercular even in the last stage. Sette at last 
rudimentary; in stage I with the structure and arrangement of Apoda 
y-inversa except that the subdorsal spines have the short branch very 
