from Siatn and Africa. 475 



stroiiirly suffused with greenish lavender-bhie. Underside 

 very siniihir to that of Cambodia, but much darker ;' all the 

 lines and other markings much sharper and the double 

 submarginal bands deep brown. 



Length of tore wing 72 mm,, expanse 151 mm. 



Hab. Siam (near Kambusi, 8,5. 1914), 



Thaiiria lathyi siamensis, subsp, n. 



In Seitz's ' Macrolepidopfera of the WorhJ/ Herr Fruh- 

 storfer has treated the four forms of Thaurt'a, known to hirn, 

 as SUBSPECIES of one species, Thnuria aliris, VVestw. — at the 

 same time remarking that his lathyi was almost worthy of 

 specific rank, as it lacked the conspicuous tuft of andro- 

 conial hairs in tiie cell of the hind wings. 



The 'i'ring Museum j)ossesses, however, from the Tenas- 

 serim Valley and Toungoo, Burmah, both typical Th. a. 

 pseudaliris, with very narrow, yellow, oblique band on the 

 fore wings and large cellular androconial tuft on hind wings, 

 and also a form of lathyi with large whitish-cream oblique 

 bands on fore wing and no cellular androconia on hind \\\u^ 

 (desciibed below). From Perak there are also in the Tring 

 Museum a large series (9 cj cJ , 3 ? ? ) of a, pseudaiiris and 

 2 ? ? of the form of lathyi described below. This proves 

 that lathyi occurs side by side with a. jjseudaliris and that it 

 is a quite distinct species. 



(J. Differs from /. lathyi in being much smaller, the basal 

 on<^-third of fore wing is suffused with much deeper, more 

 maroon rufous, and the oblique pale band of fore wing is 

 considerably wider and pure white. 



Length of fore wing 50 mm., expanse 106 mm. : /, sia- 

 iu('nf>is. 



Length of fore wing 53 mm., expanse 112 mm. : I. luthyi, 



JIah. «iam (Hoopbok, 26,4, 1^14). 



Thauria lathyi amplifascia, subsp. n. 

 (^ ? . Differs from /, lathyi by its larger size and by the 

 oblique pale band of the fore wing being quite twice as wide 

 at vem 4. 



Width of oblique band (/. lathyi) : (^ 6 mm,, $ 11 mm. 

 Width of oblique band (/. amplifascia) : (^ 16 mm,, 

 ? 17 mm. 

 Length of fore wing (/, lathyi) : J 53 mm., ? 61 mm. 

 Length of fore wing (/. amplijascia) : ^ 60 mm., 

 9 67 mm. 

 Exi)anse : /, lathyi, J" 112 mm., ? 128 mm.; /. amjdi- 

 fnscia, <S 126 mm., ? 140 mm. 



