558 



HESPEEIID^. 



marginal series of broad vinous-brown spots, one at end of each vein. Thorax and abdomen 

 white; collar, top of head, palpi, and tip of abdomen pale ferruginous; tip of palpi and 

 antennae black ; legs pale ferruginous above, purple-brown beneath. 

 " Expanse 2| inches." (Moore, I. c.) 



One male specimen was taken by a native collector at Pu-tsu-fong, Western 

 China, in July. It differs only from the Bengalese type in Mr. Moore's 

 collection in having a rather deeper apical border to primaries ; the spots 

 at ends of median nervules are larger; the discal spots on secondaries are 

 very faint, except that between the costal and subcostal veins. 



The colour of apical border and also of the spots is rather blackish than 

 vinous brown, as mentioned by Moore in his description of C. pieridoidcs. 



Mr. Doherty*,who obtained male specimens near Margherita, Assam, says: — 

 " They fly in the darkest parts of the forest towards the end of the afternoon, 

 alighting, like the other butterflies of the Tagiades group, with outspread 

 Avings. In the morning they lie concealed, adhering closely to the underside 

 of leaves. No one who sees it floating lazily level wings up and down 

 the bed of a stream, its pure white upper surface singularly conspicuous in 

 the gloom of the jungle, can doubt that the species is protected. I see no 

 reason to suppose that it mimics any Pierid. In a very -vague way it resembles 

 the Geometrid genus Euchera, which is likewise protected, and has somewhat 

 similar habits. 



" The entire body and wings of this butterfly are saturated Avith a powerful 

 and delicious odour of mingled vanilla and heliotrope. This is often per- 

 ceptible as it flies past. After pinching the insect, the scent is sometimes 

 obvious for hours afterwards on one's fingers. After lying two weeks in its 

 paper, a dried specimen still gave out perfume. None of the sweet-smelling 

 I.epidoptera known to me, not even the Lethes, Eiipheas^ or Callidulas, have a 

 more powerful odour. Yet it seems to have no specialized scent-organ (such 

 as those genera have), unless the tufts on the hind tibia?, present in many 

 other Ilespcrians, be so considered. 



" J unluckily caught no female, though I once saw a male circling round a 

 dark-coloured Hesperian, which escaped. It is, pcrliaps, rash to speculate 

 wlicre certainty may before long be attained, but the female is most likely 

 dark." 



• .I(.urn. Asiat. Soc. liciig. 188!), p. IIW. 



