IN CEKTALN LEPIDOPTEEA. 323 



antagonism to the projecting spines of the harpe. These points, in the closed condition of 

 the valves, meet at the very tip of the scaphium ; yet the scaphial teeth, which in some 

 species are long and formidable spines, are here minute and apparently useless. 



To complete the series of anomalies, I could find no trace of a penis. By so holding 

 the abdomen that the nearly level sun's rays shone into the cavity, I once or twice 

 detected a glittering point very far within ; whether this was a penis, or whether the organ 

 had been accidentally lost in my preparatory manipulation of the specimen, I dare not say. 



Papilio Doubledayi, Wall. (Plate XXXII. figs. 17, IS.) 



Va/re having the outline of a tall cone, edged by a very broad fringe of close-set hair- 

 scales — yellow at then' bases, and becoming pale scarlet at their tips — which are con- 

 tinued from the exterior surface. 



The harpe is commensurate with the valve itself, from which I am not able to 

 separate it. The extremity is double, the dorsal point continuing the general plane ; the 

 ventral really much longer, though not apparently, because it bends upward in the line 

 of vision ; it is fringed with fine short diverging hairs, proper to its point (i. e. not 

 continuous with the exterior clothing). The dorsal edge also bends up, and becomes 

 semi-erect ; its outline is so cut that, in the middle, it forms a sharp tooth, pointing 

 backward. Except this, I find no serrations in any part of the structure. The pre- 

 hensile function seems to be limited to the upcurved dorsal point, and to be feeble. 



The uncus and its accompaniments are exactly as in P. Rhodifer (infra), even to the 

 protrusion of the -wiry penis, with the single exception that the scaphium is here deeply 

 keeled, whereas the keel seems totally absorbed in P. Rhodifer. 



I subsequently examined another example, in which the penis was exactly as in 

 P. Rhodifer, except that the finger-point was not so produced, and the lower lip-like lobe 

 was rounded and of a deep red hue ; but the extruded bladder described there was here 

 a perfect little globe of translucent yellow substance, projecting like a bubble from the 

 expanding lip. 



A third example had the tip of the very same form, but without a trace of the vesicle, 

 the hollows of the bifid extremity white and shining. 



Papilio Phodifek, Moore. (A. D.) (Plate XXXII. figs. 19-21.) 



In the valve of this Andaman representative of the Coon group there is a marked 

 generic resemblance to that of P. Doubledayi, together with ample specific difference. 

 The description of the valve of Doubledayi will well suit this of Rhodifer, save that 

 the fringe, which is even broader, is of a purer scarlet hue, and the outline is still more 

 disguised by the dorsal projections. 



The harpe is again commensurate with the valve, and inseparable from it by mecha- 

 nical lifting ; though, as in Doubledayi, the brilliant glittering polish of the entire surface, 

 which distinguishes the harpe proper from the dull lining-membrane of the cavity, shows 

 in each case that it is organically distinct from the valve. Here the extremity is treble ; 

 the dorsal point, much larger, and directed much more laterally, than in Doubledayi, 

 stands erect; while the ventral division sends off from its surface, a little below its tip, 



•V' 



