A Revision of the genus Tarucus. 281 



Tarucus bengalensis, sp, nov. Plates XIV, fig. 8; 

 XVI, fig. 8, and XIX, fig. 27. 



(J. Both wings pale violet-blue tinged with lilac, the colour being 

 solid and not showing the underside through, except to a very slight 

 extent. Primaries with a conspicuous spot closing the cell. Ter- 

 minal lines blackish. Underside very similar to mediterraneae, 

 but the small series of spots just beyond the cell in both wings nearer 

 the cell than in that species where they are close to the postmedian 

 lines. Postmedian and submarginal lines parallel and decidedly 

 broader than in the previous species. 



Genitalia nearer to T. alteratus, but very different from T. mediter- 

 raneae, the clasps are large and are suddenly excavated in a deepish 

 arc midway along the upper edge, from whence they extend in a 

 broad curve to the apex, which is straightish but sharply serrated; 

 the horn-like sclerites are very long, rather narrow at the base and 

 tapering quickly to a fine point, tliey are curved the reverse way to 

 those of the species already mentioned and extend well beyond the 

 apex of the clasp, the bristles are fine, longish, but few in number ; 

 the tegumen is of the usual pattern, less ample and with very long 

 falces; the aedoeagus is quite different from either of the species 

 referred to previously, being more of the balkanica jiattem; it is, 

 however, decidedly longer with the apex suddenly rediiced at rather 

 more than a third from the tip, and having a shorter pomted process 

 from the point of reduction. The tectorius is of moderate size and 

 well developed. 



Expanse 25 mm. 



Hub. Calcutta. 



Type in my collection. 



The genitalia are so different to the nearest allies that 

 there can be no question as to the advisability of naming 

 the insect, even though at present it is unique. 



The androconia are broadly oval, the curve distally being slightly 

 broader than the proximal section and the sides are also somewhat 

 rounded; there are eighteen rows of lamina, the sculpturing being 

 fine and rather close. 



Tarucus mediterraneae, sp. n. Plates XIV, figs. 7-76; 

 XVI, fig. 7; XIX, fig. 26. 



(J. Upperside lilac blue, with a black bar closing the cell in the 

 primaries only, anal spot in secondaries distinct, terminal borders 

 very narrowly blackish. Underside, white with dark markings. 



