94 
Journal New York Entomological Socieiy. 
[Vol. VI. 
THE LIFE-HISTORIES OF THE NEW YORK 
SLUG CATERPILLARS.—XV. 
PLATE VI, FIGS. I—II. 
By Harrison G. Dyar, A.M., Pii.D. 
Heterogenea flexuosa Grote .* 
j88o_ Limacodes flexuosa Grote, North Am. Ent. I, 60. 
!88o_ Limacodes ccesonia Grote, North Am. Ent. I, 60. 
1 894_ Heterogenea ccesonia and flexuosa Neumoegen & Dyar, Journ. N. Y 
Ent. 80c. Ill, 74 - 
Larva. 
j878_Glover, Ill. North Am. Ent. pi. 95, fig. 19. 
1893 _Packard, Proc. Am. Phil. Soc. XXXI, 105 (as “full grown larva of 
Heterogenea sp.”). . 
! 8 qc— Dyar & Morton, Journ. N. Y. Ent. Soc. Ill, 146 ( in synopsi )• 
1896 _Dyar, Journ. N. Y. Ent. Soc. IV, pi. VI, figs. 3 and 4 (as Tortncxdia 
pallida'). 
Special Structural Characters. 
Dorsal space narrow, of even width, scarcely narrowing at the ends, 
gently arched; joint 13 rounded prominent. Lateral space broad, 
oblique, narrowing to the extremities; subventral space small, re¬ 
tracted. Subdorsal ridge slight; indicating the change in direction 
between back and sides; lateral ridge rather prominent, overhanging 
the subventral space. Outline elliptical, joint 13 only slightly notched 
on the sides, not forming a quadrate tail. Depressed spaces (i)-(S) 
present, the subventral ones (7) and (8) only indicated, the others 
sharp edged and deep, large, dividing the surface into latticed ridges as 
in Toriricidia pallida , (4) the largest, transversely elongated, the lower 
segmental (5) moderate, the intersegmental (6) very small, alternating 
exactly in line with the lower edge of (5). Skin surface covered with 
coarse clear granules, the depressed spaces finely granular in the base. 
In the first stage the setae are arranged as in T. pallida , but disappear 
at the first molt when all the structural characters are assumed nearly 
in their mature form. Coloration of the pattern and colors of T. 
pallida , modified in detail. 
* This is not a Heterogenea ; but I reserve generic corrections till the end ol 
these articles. 
