j 884.] lepidoptera from aden 491 



30. Teracolus nouna. 



Anthocharis nouna, Lucas, Expl. Alg., Zool. iii. p. 350, n. 14 

 pi. 1. fig. 2 (1849). 



<$ 2 , Huswali, 30th March and 18th May ; 6* , Haithalkim, 5th 

 and 20th April, 1884. 



The specimens agree tolerably closely with the figures by M. Lucas. 



31. Teracolus saxeus. 



Teracolus saxeus, Swiuhoe, P. Z. S. 1884, p. 441, pi. 40. figs. 1, 2. 



cJ, Huswah, 14th March, 1884; ?, 9th September, 1883; ?, 

 Lahej, 9th September, 1883. 



Differs from the preceding in the subapical oblique orange band 

 on the primaries below being of double the width, and in the much 

 more pink colour of the under surface of the secondaries ; the female 

 also is destitute of the oblique brown hue near the inner edge of the 

 broader orange apical patch. It is, of course, possible that the two 

 may be dimorphic forms of one species, but this can only be satis- 

 factorily decided by breeding. 



32. Teracolus yerburii. 



Teracolus yerburii, Swinhoe, P. Z. S. 1884, p. 441, pi. 39. fig. 12. 



Haithalkim, 4th and 5th April; Shaik Othman, llth May, 1884. 



Occurs also at Lahej according to Major Yerbury. The species 

 had evidently been some time on the wing when obtained, as only 

 one of the six examples received was uninjured. 



33. Teracolus swinhoei, sp. n. 



<$ . Allied to the preceding species, from which it differs as 

 follows : — Wings longer, the primaries with rounded apex and ex- 

 ternal angle, upper surface sulphur-yellow instead of milky white ; 

 the black-brown apical patch of primaries more oblique, with the 

 band of five orange spots decidedly narrower, more oblique, less 

 angular, and with narrower blackish inner edge ; secondaries with 

 the grey basi-costal scaling continuous with the outer edge of the 

 costal blackish spot, the apical patch unbroken ; the squamose grey 

 band, from the apical patch to the subniedian vein, further from the 

 outer margin and paler than in T. yerburii ; the black marginal 

 spots much larger ; under surface tinted with sulphur-yellow through- 

 out, bright sulphur-yellow over the basal half of the primaries and 

 the external border, the subapical orange band much brighter and 

 (as on the upper surface) narrower and more oblique. Expanse of 

 wings 42 mm. 



Haithalkim, 5th April, 18S4. 



" The only specimen."- — J. W. Y. 



34. Belenois lordaca. 



Pieris lordaca, Walker, Entom. v. p. 48. 



^ $ , Huswah, 14th and 30th March ; 5 , Haithalkim, 5th April, 

 1884. 



The males are smaller than one in the Museum collection from 

 Pkoc. Zool. Soc— 1884, No. XXXIV. 34 



