JOURNAL 
OF THE 
J2pfo ]9oph 6{ntoraoIogirflI SEorirtg. 
Vol. VI. SEPTEMBER, 1898. No. 3. 
THE LIFE HISTORIES OF THE NEW YORK SLUG- 
CATERPILLARS—XVI, WITH CERTAIN 
ADDITIONS AND CORRECTIONS. 
PLATE VIII. 
By Harrison G. Dyar, A.M., Ph.D. 
Tortricidia testacea Packard . 
Tortricidia testacea Packard, Proc. Ent. Soc. Phil, III, 337. 
“ “ Grote, Check List, Bombyces, no. 195. 
“ “ Smith, List. Lep. no. 1211. 
“ “ Kirby, Cat. Lep. Het. I, 551. 
“ “ Neumoegen & Dyar, Journ. N. Y. Ent. Soc. II, 
Special Structural Characters. 
Dorsal space moderately broad, narrowing only a little toward the 
extremities, arched; lateral space broad, oblique, concave; subventral 
space small, retracted. Ridges slightly prominent, never tubercular, 
furnished with single or furcate swollen-tipped setae in stage I, afterward 
with rudimentary setae which nearly disappear at maturity. Outline 
from dorsal aspect elliptical, notched at the anterior part of joint 13 to 
form a short quadrate tail. Skin covered with close, appressed, rather 
large, clear granules, which appear immediately after first molt, a little 
papillose on the margins, becoming smoother and increasing in number 
at subsequent molts. Depressed spaces large, well developed, deep, 
with sharp sides, the bottom flat and finely granulated. The spaces 
(1) to (8) are present, dividing the surface into a series of raised lat¬ 
ticed ridges. 
The larva is throughout very smooth. The coloration is green with 
a large red mark appearing in the middle of the back, finally reaching 
head and tail and the middle of the sides. 
1864— 
1882— 
1891— 
1892— 
1894— 
