84 NOVITATES ZOOLOOICAE XXIV. 1917. 



15a. Euchloe ausonia algirica (Oberth.). 



Anlhocharis tagis var. algirica Oberthiir, Etiid. Lipid. Comp. Fasc. III. p. 145 (1909) (Meoheria, 

 Prov. Oran). 



This form is very variable, especially in the shape of the wings and in the 

 marking of the underside. The shape varies from a quite rounded forewing 

 to a very pointed one, and on the underside of the hiiidwuigs the white markings 

 in the green of the hmdwuig vary from quite small spots and dots to large 

 splashes or broad, irregular bands ; these white marks also vary in themselves, 

 for in some specimens they are dead white, while in others they are lustrous 

 pearly white. The green varies also from dark dull green in some individuals 

 to bright grass green in others. 



The summer brood, gen. aest. fstvdonymus, although characterised by the 

 stronger admixture of yeUow with the green and the greater diffusion in the 

 bands and spots, is not nearly so different from the sprmg brood, gen. vern, 

 algirica, as are the spring and summer broods of crameri. 



The Tring series consists of 2,069 specimens. 



5 Djebel Tixa, Morocco, March 1905, W. Riggenbach. 



1 Tamarouth, Morocco, June 1904, W. Riggenbach. x 

 8 Mogador, Morocco, Staudinger.x 



30 Ain Sefra, May 1913, W. R. and E. H.x 

 18 Ras Chergui, May 1915, Faroult.x 



3 Djebel Mekter, May 1913, E. H. and C. H.x 

 5 Saida, May 1913, W. R. and E. H.x 



4 Tifrit, May 1913, W. R. and E. H.x 

 315 Berrouaghia, April 1914, Faroult. 



7 Boghari, May 1913, Faroult.x 

 1,363 Guelt-es-Stel, March— May 1911-1913, W. R., E. H., and K. J., and 

 Faroult.x 



5 Laghouat, March— April 1911-1912, W. R. and E. H. and Faroult. 



2 40 kilometres south of Laghouat, April 1911, W. R. and E. H. 

 60 Bou Saada, March— June 1911-1912, Faroult.x 



3 Biskra, March 1911, W. R. and E. H. 

 20 El Outaya, March— April 1911, Faroult. 



130 El Kantara, March— May 1908-1911, W. R. and E. H., Faroult and 

 Cheli Brahim.x 



15 Khenchela, May— June 1911-1912, W. R. and K. J. and Faroult. 



7 Lambessa, Kay 1909, W. R. and E. H. 

 68 Environs de Batna, AprU— May 1909-1915, Nelva. 



Where a x follows the name of the collector it denotes that some or all 

 of the specimens consist of the summer brood, gen. aest. pseiidonymus. 



In the British Museum are 2 Lambessa, April 1884, J. Merkl, Oberthiir 

 coll. ex Elwes coll. ; 1 Lambessa, May, and 1 El Kantara, May 1882, H. J. 

 Elwes ; 2 Mogador, Leech coll. (summer brood). 



The ? ab. poslochracea Rothsch., which is fau-ly common in the present 

 subspecies, is very much rarer in crameri from Algeria. I have it only from 

 Htvmmam Meskoutine. 



