NOTTTATES ZoOLOOIOAE XXIV. 1917. 311 



the costa anteriorly, about 4 mm. from apex distally, crosses M' posteriorly, but 

 there becomes less sharply defined and is confluent with a narrow light-browii, 

 silver-dusted patch on middle of hindmargin ; ocellus flesh-tinted in centre, 

 containing the white cell-streak, interruptedly bounded by silvery scahng, 

 crossed by a silver streak along base of R' and containing between this streak 

 and its hinder edge a double black mark (verj' small between R' and M", larger 

 between M' and W-) ; a thick black mark in cell just proximally to the ocellus 

 and a less thick one between the radials distally to it ; postmedian line slender, 

 slightly sinuous, light-brown, from hindmargin to R% where it becomes absorbed 

 in the elongate patch ; submarginal grey spots elongate, thick, the anterior two 

 less so ; terminal Une almost interrupted at the veins, slightly lunulate and 

 thickened between ; fringe white, traversed by a feeble central grey shade 

 except at apex, tornus and opposite the veins. — —Hindwing with the ocellated 

 marking pear-shaped, light olive-brownish, its narrow anterior part containing 

 the long, very slender concolorous cell-streak (which shows up on accoimt of an 

 equally slender white circumscription), its bread posterior part (about the base 

 of R', M', and M=) roundish, containing a slightly misshapen ring of dark, silver- 

 mixed scaling, from the narrow anterior opening of which projects a line of 

 silvery scaling along the proximal edge of the cell-mark— noticeable also in the 

 preceding species ; postmedian line complete, greyish, rather thicker than on 

 forewing, becoming brown at abdominal margin ; subterminal grey spots large, 

 rather rounder than on forewing ; pairs of small dots against the veins between 

 these and termen (traceable also on posterior part cf forewing). 



Underside ^^-hitish, with costal margin of forewing smoky to near apex ; 

 median imtches present, more smoky, containing white cell-marks ; distal 

 markings faintly discernible. 



Khasis, October 1896. Type in coll. Tring Museum. 



The descriptions of this and the preceding were drawn up quite independenth-, 

 but it now occurs to me as conceivable that it may be a remarkable aberration. 

 The structure seems to agree, and the hindwing is quite similar except that 

 the cell-patch is slightly narrowed. Ihe only known Prohlepsis with similarly 

 shaped markings on the forewing is the very distinct Palaearctic species phoe^ 

 bearia Ersch. 



43. Problepsis delphiaria (Guen.). 



Argyris delphiaria Guen., Spec. Gin. Lip. x. 14 (1858). 



Problepsiodes argerUisquama Warr., Nov. Zool. vi. 337 (1899) (syn. nov.). 



I think the above synonymy will be found correct. To no other known 

 species does Guenee's description apply, though it is unfortunate that he does 

 not mention the antennal structure in detail, and that the locality vhich he 

 gives — "Central India"- — is by no means helpful. It seems a comparatively 

 rare species, and the only authentically ascertained range is Burma to Singapore, 

 though the Tring Museum possesses one old specimen merely labelled " India." 

 Warren (Nov. Zool. xvi. 126) clearly recognised this species as the true delphiaria, 

 though he does not seem to have discovered in it his own argentisquama of ten 

 years earlier. P. vulgaris Butl. (III. Het. vii. 23. t. 125. f. 2), of which aitenuata 

 Warr. (Nov. ZooL. xvi. 126) is a slight and unimportant aberration, and avri- 

 cuUfera Warr. (Nov. Zool. iv. 59) apparently merely a small form — perhaps 



