346 Mr. A. R. Wallace on 



3. Thy ca pandemia, n. sp. (PI. VI. fig. 4, 4 a, $ .) 



Upper wings shorter and hind wings more elongated than in 

 T. pasitJtoe. 



Male. — Above, black, a white spot at the end of the cell of 

 all the wings, and at the outer angle of the uppers, which have 

 also the costa and a curved band of linear spots across the apex 

 decreasing to the outer angle within which is a linear mark, grey- 

 ish-white ; the lower wings have a rich yellow abdominal patch 

 only just passing the first median nervule, and a faint greyish 

 band from the inner margin across the cell. Beneath : the mark- 

 ings of the uppers as above but more distinct ; the lower wings 

 have the yellow spots as in T. pasilhoe, but smaller and brighter, 

 only the two spots between the cell and the outer row are absent, 

 and the spot in the cell is divided into two ; the semicircular red 

 band as in T. henningia, but still narrower. 



Expanse of wings 2|^ inches. 



Hab. — Borneo (Coll. W. W. Saunders, Brit. Mus.). 



A beautiful modification of T. pnskhoe, at once distinguished 

 by the absence of the band across the upper wings. 



4. Thyca egiaJea, Cramer. 



Pap'ilio egialea, Cr. 189 D, E, $; 258 E, F, $. P'lerh egialea, 



Bd. Sp. Gen. p. 450. 



Hab. — Java (Wall.) ; Sumatra, Biliton, Banca (Voll.). 



Vollenhoven in his Monograph of Malayan Pieridce (p. 7) gives 

 also " Ceram" as a locality for this insect, but I have no doubt this 

 is an error, and therefore do not include it among the localities. 

 The whole group to which this species belongs is restricted to the 

 Indian region. 



5. Thyca crithoe, Boisduval. 

 Pieris crithoe, Bd. Sp. Gen. p. 450 ; Voll. Mon. Pier. p. 7, $ . 



Female. — Has the patch on the upper wings whiter, two spots 

 at the end of the cell and those at the apex large and white ; on 

 the lower wings the white patch extends only in a narrow pro- 

 longation across the end of the cell. Beneath, differs from the 

 male nearly as above, and on the lower wings the yellow patch 

 does not extend so far up the wing, leaving a notched black band 

 between it and the red base. 



Ilab.— Java. (B. Mus. Coll. $ , ^). 



