316 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XX. 



71. Ergolis ariadne, Johanssen. (PI. F, fig. 36). — Male and female : forewing 

 truncate at apex ; termen angulatecl at interspace 5 and again at apex of 

 vein 3, concave between ; tornus obtusely angulate. Hindwing : termen more 

 or less deeply scolloped. Male upperside : ochraceous rufous ; a prominent 

 white, small, subcostal spot before apex of forewing; two or three dark brown 

 marks in cell of both fore and hindwings, followed by subbasal, discal, two 

 postdiscal, subterminal and terminal slender, sinuous, dark brown lines, 

 crossing from costa of forewing to vein 1 of hindwing ; discocellular nervules 

 of both wings defined by short, dark brown lines ; cilia white, alternated with 

 brown. Underside : ground-colour brown with an ochreous tint, and some- 

 times a slight greyish suffusion. Fore and hindwings : some dark chestnut- 

 brown spots or loop-like marks at base, followed by subbasal, discal and post- 

 discal, broad, chestnut-brown, sinuous bands, interniptecl on the forewing by 

 the sex-mark of specialized scales (the subcostal vein and veins 6 and 7 on 

 the upperside of the hindwing are prominently pale and shining and there 

 is a large, discal patch of specialized, very dark, shining scales on the 

 underside of the forewing extending to the base of wing, upwards into the 

 cell and to vein 4) ; the postdiscal band on the hindwing traversed by series 

 of transverse, dark spots in the interspaces. Lastly, both wings crossed by 

 a subterminal zigzag and a terminal, irregularly sinuous, dark brown line. 

 Antennae, head, thorax and abdomen ochraceous rufous. Female similar, 

 slightly paler in colour, of course without the specialized sex-marks. Exp. 

 52-56 mm. 



Larva (PI. I, fig. 11). — The larva is like those of Cupha, Atella, except 

 that the head is furnished with a pair of long horns ; the colour is black with 

 a striated white, broad, dorsal band on segments 6 — 11. Head square from 

 front view, rather small, with two very divergent, long, hard, cylindrical 

 horns, one from the vertex of each lobe, as long as segments 1 — 4 together, in 

 the plane of the face, set with a cluster of short spines at tip and a few 

 along the shafts ; they are separated widely at base and more or less squarely ; 

 the surface of head is- smooth except for two rows, of spines one slightly an- 

 terior to the other, down each cheek ; a few hairs about jaws ; colour of head is 

 black. The body is cylindrical with the segments well marked; anal segment 

 high, overhanging the anal prolegs or claspers ; neck narrower than head. 

 The body spines are all more or less of the same size, except the subspira- 

 cular ones which are small ; the pedicels or shafts of the subdorsals of seg- 

 ment 4 and segment 12 are thicker than others ; the spines of segment 2 are 

 also small ; each spine consists of a shaft from the extremity of which proceed 

 three or four fine, sharp, smooth spinelets at an angle of 45° to the shaft ; 

 all spines are perpendicular to the surface of body and slightly swollen at 

 the origin ; they are arranged as follows : — segment 2 has a subdorsal, simple 

 one and a lateral and subspiracular spine branched at extremity into four 

 points : the subspiracular spine on base of leg ; segments 3 and 4 have a 



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