SOME UNDESCRIBED RHOPALOCERA FROM SIAM- 179 



Described by Fruhstorfer (I. c.) as a distinct species, of which 

 he only knew the female Type in the Paris Museum. A single male 

 specimen obtained in the Me Song forest, Prae, N. Siam, in April 

 1918 seems undoubtedly to be the male of this race. The specimen 

 resembles L. t. lyolene de Niceville, but differs in having the 

 apical red of forewing above much wider, and the white patch 

 towards inner margin nearly twice as large. Unfortunately the 

 specimen is so damaged that it is impossible to be sure of the shape 

 of the hindwing. The basal and sub-basal markings are wanting, as 

 is said to be the case in the female described by Fruhstorfer, and the 

 other black markings are much reduced throughout as compared 

 with lyclene. In addition, the markings which in that form are 

 bluish, are in boulldi rather greenish, the discal markings of hind- 

 wing more approximated to cell, and the marginal and submarginal 

 bands narrower. 



Whilst very distinct from typical telesia Hewitson, we do not 

 consider boulleti worthy of more than subspecific rank, and therefore 

 treat it as a race of telesia. 



B. M. Type No. Eh. 137, d, Me Song forest, Prae, N. Siam, 

 April 1918. 



LYCM^WJE. 



GERYDINiE. 



12 Gerydus ancon siamensis Godfrey. 

 ( Plate V, figs. 8 and 9.) 



Journ. Nat. Hist. Soc. Siam, ii, p. 134, 1916, d. 



?. In addition to the pronounced sexual differences in the 

 shape of the wings etc., usual to the genus, has the pale area at the 

 end of forewing cell developed to form an irregular diagonal trans- 

 verse band, reaching from very near costa to vein 3 close to the 

 round white spot in area 2 distally. The ground colour of both 

 wings is a richer brown, not so grey as in the male. Below, the 

 general tone is rich ochreous, forewing markings as above, hindwing 

 with the short discal smoky band strongly developed. 



Length of forewing:. — 23 mm. 



VOL. IV, NO, 3, 1921. 



