from Siam and Africa. 475 



Strongly suffused with greenish lavender-blue. Underside 

 very similar to that of canihodia, but much darker ; all the 

 lines and other markings much sharper and the double 

 subtnarginal bands deep brown. 



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



Hab. tSiara (near Kambusi, 8.5. 1914). 



Thauria laihyi siamensis, subsp. n. 



In Seitz's ' Macrolepidoptera of the World/ Herr Fruh- 

 storfer has treated the four forms of Thauria, known to him, 

 as SUBSPECIES of one species, Thauria aliris, Westw. — at tiie 

 same time remarking that his lathyi was almost worthy of 

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

 conial hairs in the cell of the hind wings. 



The Tring Mu-^eum possesses, however, from the Tenas- 

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

 2^seudaliris, with very narrow, yellow, oblique band on the 

 fore wings and large cellular androconial tuft on hind vvinos, 

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

 bands on fore wing and no cellular aiidroconia on liind wing 

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

 Museum a large series C^ S <S ■> "^ ? ? ) of «. pseudaliris and 

 2 ? ? of the form of (atkyi described below. This proves 

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

 is a quite distinct species. 



(^ . Differs from I. lathyi in being much smaller, the basal 

 one-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- 

 mensis. 



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



Bab. Siam (Hoopbok, 26. 4. li)14). 



Thauria lathyi amplifascia, subsp. n. 

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

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

 at vein 4. 



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

 Width of oblique baud {I. amplifascia ) : c? 16 mm. 

 $ 17 mm. 

 Length of fore wing [1. lathyi) : ^ 53 mu)., $ 61 mm. 

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

 ? 67 mm. 

 Expanse: /. lathyi, S 112 mm., ? 128 mm.; /. ampli- 

 fascia, (? 126 mm., ? 140 mm. 



