LEPTOCIRCIN.^. 135 



caudal area sparsely speckled with \vLite scales ; abdominal margin in the male 

 grooved along the base of submedian vein and i\\Qve furnisliecl ivith a radiating tuft of 

 androconial jJure white hairs ; cilia extending from the upper median to near end of 

 the tail, and the entire tip of tail pure white, the cilia from anal angle being white 

 only at the angles. Underside black. Forewing with the two bands as on upperside, 

 the basal area being clothed with greyish-white hairs, and the posterior margin to 

 the inner band with silk^^-white scales. Hindioing with the transverse white band, 

 as on upperside, but bent inward from its lower end and continued less prominently 

 in a zigzag line to the abdominal margin, below which portion are two short zigzag 

 white streaks, and on the upper submarginal area is a similar white streak; basal 

 area thickly clothed with greyish-white hairs and white scales. Bodij above, palpi, 

 and legs above, black ; abdomen beneath ochreous-white ; head, thorax, and legs 

 beneath greyish-white ; tarsal claws in both sexes bifid. 



Expanse, Ij-q to Inj inches. 



Habitat. — E. Bengal ; Burma ; Tenasserim ; Malay Peninsula ; Siam ; W. and 

 C. China. 



Distribution. — The Fabrician type specimen, in the Banksian Cabinet at the 

 British Museum, is recorded from Siam. Mons. G. A. Poujade {I.e.) records it from 

 the " banks of the Mekong from Pnom-Peng to Lora-bor, Siam." Mr. W. Doherty 

 (Pr. Zool. Soc. 1891, 251) found it "very common in Assam, ranging up to GOOU 

 feet. Specimens were taken on the Dibong, north of Sadiya, this probably being the 

 northern limit of the genus." Col. C. Swinhoe has received several specimens from 

 the "Khasia Hills, E.Bengal" (Tr. Eut. Soc. 1893, 315). Mr. W. S. Atkinson 

 obtained it at Cheri'a Punji, Assam. Col. C. H. E. Adamson obtained it at Bhamo, 

 Upper Burraah, being much less common than L. Meges " (List, 1897, 50), 

 Specimens from the Meple Valley, Burma, taken in October by Col. C. T. Bingham, 

 and from Beeling, Upper Tenasserim, taken in March by Capt. E. Y. Watson, are in 

 the British Museum. Mr. ~W. S. Distant records it from " jMalacca and Perak " {I.e. 

 366). Col. Swinhoe has examples from Perak, Malay Peninsula. Mr. J. H. Leech's 

 Collection contains examples from C. and W. China. 



Specimens which we have examined from Sumatra and Borneo, and referred to 

 by authors as L. Curius, have a narrower white discal band on both wings, and 

 also a narrower hyahne band on the forewing. These are, doubtless, referable to 

 L. Libelluloides. We have not seen authenticated Java specimens of Gurius. There 

 is an example in the British Museum, from the E. India Company's Collection, 

 labelled " Java," which was purchased from a dealer, but the locality of which is 

 doubtful. This latter specimen is similar to the Sumatra form. It is recorded from 

 Java by Fruhstorfer (Berk Ent. Zeit. 1896, 306). 



