i6 NYMPH ALID.E. NYMPIIALIN.1<:. EURIPUS. 



neut, naked. Palpi, scaly, obliquely porrected, not elevated much higher than the middle of 

 the eyes, porrected to about half the length of the head ; the tips converging, scaly, except at 

 the base beneath, and on the back of the terminal half of the second joint, which are hairy. 

 Terminal joint small, ovate-conic. Antenna, strong, rather more than half the length of the 

 forewing ; terminated by an elongated, rather slender club, the tip of which is slightly curved 

 outwardly. Thorax, elongate-ovate, robust, woolly, spotted with white in front. Abdomen, 

 rather slender. FoREWiNG, elongate-triangular. Costal margin not strongly arched ; apex 

 rather obtuse ; outer margin about two-thirds of the length of the costa, very slightly scalloped, 

 its anterior portion rather convex, but emarginate below the middle ; anal angle strongly 

 rounded ; inner margin equal in length to the outer margin. Subcostal nervure having the 

 first branch arising at about one-fourth of the length of the wing ; second branch arising rather 

 beyond half the length of the wing ; third branch arising at about two-thirds of its length, 

 and extending to the tip ; fourth branch arising halfway between the third and the tip, extending 

 to the outer margin below the apex ; terminal portion of the nervure more oblique. Uppet disco- 

 cellular nervule extremely short, transverse, arising at about one-third of the length of the 

 subcostal nervure ; middle disco-cellular very short, curved, forming the base of the lower 

 discoidal nervule ; loiuer disco-cellular obsolete, so that the discoidal cell is open. Median 

 nefvure strong ; its third branch not strongly arched at the base. Hindwing, subtriangular ; 

 costal margin much arched at the base ; outer margin deeply scalloped ; the margin between 

 the discoidal and the third median nervule being somewhat elongated into a very short truncated 

 tail. Pmcostal nervure slightly oblique in a direction from the body, and forked at the tip. 

 Subcostal nervure branching near the base. Upper disco-cellular nervule forming the straight 

 base of the discoidal nervule and the loiv.r disco-cellular obsolete, the discoidal cell being open. 

 Forelegs, of the male small, feathered, the tibia shorter than the femur, and the tarsus 

 nearly eqial to the tibia in length, exarticulate, and destitute of apical claws ; annulated 

 alternately with black and white hairs. Of the fetnale about the same length as those of the 

 male, more slender, and clothed with fine scales, the tarsus furnished with apical claws. 

 Middle and hindlegs, strong; tibice and tarsi armed beneath with rows of minute spines ; 

 the middle pair longer than the hind ones ; claws rather large, sickle-shaped, and very acute." 

 {Westwood, I.e.) 



This genus comprises about ten species inhabiting the Himalayas extending westwards 

 as far as Masuri, and eastwards through Assam, Sylhet and Burma to the Malay Peninsula. 

 It occurs in the Eastern Ghats and South India, but has not yet been discovered in Ceylon, 

 the Andamans or the Nicobars. Species are found also in Borneo, Celebes, the Philippines 

 and Japan. 



The females of several species are highly mimetic, resembling various species of Euplcea 

 so closely as to be easily mistaken for them on the wing, the resemblance being not only in 

 shape and markings but also in manner of flight and in the habit of resting in exposed 

 positions. The males have quite a different appearance, their flight is rapid instead of soaring, 

 and they rest with closed instead of open wings. The females are also very variable, and in 

 some cases distinctly polymorphic. E. halitherses has at least three forms of the female which 

 mimic three different species of Euplcea. The males are fairly constant in form and style of 

 marking as well as in colour. They are deep indigo blue with whitish elongated patches 

 and spots on the interspaces, most prominent on the hindwing. In the two Indian species the 

 haustellum is black, in the genus Hestina which is really closely allied to Euripus, but is arti- 

 ficially distantly separated from it in this work, owing to the second subcostal nervule of the 

 forewing in the typical species being given off from the costal nervure before the end of the 

 cell, it is chrome yellow. 



Key to the Indian species of Euripus. 



A. Both sexes with the base of the hindwing on the underside marked with carmine. 



30s. E. CONSIMILIS, India, Burma. 



B. Both sexes with the base of the hindwing on the underside unmarked with carmine. 



306. E. HALiTHEKSES, Eastern Himalayas, Assam, Burma. 



