182 MESSRS. RILEY AND GODFREY ON 



to mere dots, in places partially merged into the orange antemarginal 

 series. In addition there is a roundish black spot near the base of 

 area 7, touching vein 8, but only extending little more than halfway 

 across area 7 towards anterior margin of cell. 

 Length of forewing. — 15 mm. 



B. M. Type No. Rh. 127, 9, Me Song forest, Prae, N. Siam, 

 April 1918. 



The anteriorly jagged-edged and very much narrower orange 

 terminal band of the hindwing above and, on the hindwing below, 

 the absence of most of the basal and discal black markings together 

 with the substitution of black for orange in the marginal series, 

 readily distinguish this species from any of the forms of T. nyseus 

 Guerin, with which we are acquainted. 



16. Azams urios, sp. now 

 ( Plate VI, fig. 5. ) 

 tf. Uppersida, both wings. — Rich shiny purple, the cilia grey- 

 brown but whitish towards apex. Forewing. — Hind margin broadly 

 dark brown, broadest at costa; the Avhole of the disc of the wing 

 covered by a silky patch of modified scales. Hindwing. — Costal 

 area completely, and outer margin very broadly, dark brown. 



Underside, both wings. — Rather dark brown. Forewing. — 

 Two minute black light-ringed spots just below costa, one 

 slightly before, the other rather further beyond cell-end ; 

 a broad mark across cell-end, a discal series, interrupted at 

 vein 3, and a smaller and fainter antemarginal .series, are all com- 

 posed of oblong spots slightly darker than ground-colour and edged 

 internally and externally with light grey. In addition there is a 

 marginal series of oval rather darker spots and a dark brown ante- 

 ciliary line. Hindwing. — Similar to forewing, but the spots in the 

 discal and antemarginal series smaller and less regularly arranged, 

 the costal black spots much larger, the proximal one much nearer 

 the base. In addition there is a sub-basal series of the small black 

 spots, a larger black anal spot and a very much larger internally 

 orange-bordered black spot in area 2, resting on the margin. 

 Length of forewing. — 11.5 mm. 



JOUKN. NAT. HIST. SOC. SIAM. 



