48 
LEPIDOPTERA INDIG A. 
i oblique, and very concave, radial from tlieir angle; lower median branch at half 
before end of the cell; submedian vein straight; internal vein recurved. Body 
slender; thorax hairy; palpi short, scarcely extending beyond the head; flat, 
squamose, third joint minute and pointed; legs slender, tarsi long; antennae short, 
club moderately stout. 
Male. Underside of foreiving , in both Wet and Dry forms, with a secondary 
sexual narrow linear depressed streak of pale violet glandular scales —extending 
along each side of basal portion of the median vein* to near the lower branch,— 
these streaks having an opaque appearance on holding the wing up to the 
light; the posterior basal area of the wing is also clothed with appressed glossy- 
white scales. 
Larva. —Cylindrical. Colour green, with a white line along each side shading 
into the green of the back. Head green; fine rugae across the back set with short 
hairs. Feeds on Cassia .” 
Pupa.—“ Suspended by posterior end and a thread at the middle; single 
pointed at both ends, the back, which is placed upwards, is gibbous; a sharp 
ridge runs along each side. Imago emerges in about eight days” (Dr. A. Leith, 
Bombay). 
Type.—T. Hecabe. 
This is a most difficult and puzzling genus of butterflies to study, from the fact 
that the species, having several broods during the year, and these broods, where 
occurring in areas—in which the seasonal and climatic changes are more or less 
well-marked—show certain distinctive features in their markings, these features being 
different, and recognizable, if carefully compared inter-se with those of the brood of 
the co-ordinate form of other localities. 
The species of the genus, within our limits, occur in the Hills and Plains, 
North and South, and the different climatic and atmospheric conditions, of these 
areas, have great influence upon the production of the various patterns of the 
markings in the broods produced during the year, especially in those areas where 
the climate is very wet, moderately wet, or extremely dry. The dominant species, 
and also the most widely distributed, is Ilecabe , this species, in a Wet and Dry form 
only, occurring both in our Northern and Southern areas. A characteristically 
noticeable feature, in all the species, is that of the numbers of the cell-marks on the 
underside of the forewing, in both sexes—as shown below :— 
* These two secondary sexual brands , as above described, are present in the males of all the species 
of true Tericts, and were first correctly noticed by Mr. L. de Niceville, in Journ. As. Soc. Bengal, 1885, 
p. 49; and erroneously stated as being present on the submedian vein, by Capt. E, Y. Watson, in Journ, 
Bombay Nat. Hist, Soc. 1894, p. 508, 
