20.1 lUIOPALOCERA MALAYAN A. 



yellow, whii-h covers the whole abdominal margin to the middle of the wing, beyond which are three 

 large oval spots near the outer angle ; another baud of yellow crosses the lower half of the cell, and 

 reaches up to the inner margin near the base of the wmg." 



Exp. wings, "'2| inches." 



H.\is.— Malay Peninsula; " Malacca— Mount Ophir— (coll. Wall.)." 



This, iudgiiiy from Mr. Wallace's figure aud description, is a very distinct species, and 

 from its general absence in collections, appears to be a very scarce one. As Mount Ophir is 

 given as the precise locality where the species was taken, it may probably be peculiar to that 

 little— entomologically — known and worked district. 



Genus PEIONEEIS. 



I'nnm-ris, ^Vallace, Traus. Eut. Soc. ser. 3, vol. iv. p. 383 (1867); Butl. Cist. Eut. vol. i. p. 39 (1870);* 

 Moore, Lap. Ceyl. vol. i. p. UO (1881). 



Anterior wings somewhat elongately subtriangular ; costal margin arched at base, the apex 

 subacutely rounded; outer margin oblique, inner margin slightly concavely sinuate. Costal nervure 

 extending to nearly two-thirds the length of costal margin ; first subcostal nervule emitted near middle 

 of cell, second at a short distance from first, third and fourth bifurcatmg at about two-thirds the length 

 of third, third and fifth bifurcating at about one-fourth of the length of third from end of cell ; upper 

 disco-cellular nervule very oblique and longer than the lower ; cell extending to more than half the length 

 of wing, median uervules situate wide apart. Posterior wings somewhat elongately subovate; costal 

 margin oblique to apex, which is broadly rounded; outer margin convex and slightly aud irregularly 

 sinuate. Precostal nervure curved outwardly ; costal nervure couvexly rounded ; first subcostal nervule 

 emitted near middle of cell, second midway between bases of the first and of the discoidal nervule ; 

 disco-cellular uervules oblique, the uppermost much the longest ; first aud second median uervules a little 

 closer together than second and third; submedian nervure nearly straight; internal nervure recurved 

 and reaching to about two-thirds the length of abdominal margin. Body somewhat large and robust; 

 head aud pronotum very hairy ; palpi long, and clothed with very long hairs beneath ; legs long ; anteuus 

 long, with a gradually thickened apical club. 



Costal margin of the anterior wings minutely serrated. 



This is a very distinct genus, both by its neuratiou aud also by the peculiar character 

 of the serration of the costal margin of the anterior wings, which is immediately discovered 

 if the finger is passed from the apex towards the base. In colour and markings the species 

 approximate towards those of Delias, or, as Mr. Wallace remarks, "seem to mimic" them, 

 as in all the cases the species of Delias " are very abundant, and are weak, slow-flying insects, 

 while the mimicking species of rrioneris are rare, and in all cases the pairs which resemble 

 each other inhabit the same district, and they often are known to come from the same 

 locality." t 



rrioneris is a somewhat small genus, and its species are distributed from Continental 

 India and Ceylon throughout the Indo-Malayan region. One species is found in the Malay 

 Peninsula. 



* In describing this genus Mr. Butler has omitted one of the subcostal uervules to the anterior wmgs. 

 t Trans. Ent. Sec. ser. 3, vol. iv. p. 383 (1867). 



