48 LEPIDOFTERA INDICA. 



oblique, and very concave, radial from tlieir angle; lower median brancli at half 

 before end of the cell ; snbmedian vein straight ; internal vein recurved. Body 

 slender; thorax hair3' ; palpi short, scarcely extending beyond the head; flat, 

 squamose, third joint minute and pointed; legs slender, tarsi long; antennre 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 

 hght ; the posterior basal area of the wiug 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 rugse 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). 



TrPE,— 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, bave 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 Hecahe, 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-marls on the 

 underside of the forewing, in both sexes — as shown below: — 



* These two secondary sexual brands, as above described, aic present in the males of all the species 

 of true Terias, and were first correctly noticed by Mr. L. de Nici'ville, in Journ. As. Soc. Bengal, 1SS5, 

 p. 49; and erroneously stated as being present on the siihniedidn vein, by Capt. E. Y. Watson, in Journ. 

 Bombay Nat. Hist. Soc. 1894, p. 508. 



