NOVITATES ZOOLOGICAE XXIV. 1!I17. 83 



generation, I jumped to the conclusion that Rober's melanochloros must be an 

 aberrtation of the summer brood. Instead of which it was founded on very 

 late individuals of the spring brood, wViich were remarkable for the reduction 

 of the white spots in the green of the hindwings ; in fact, Rober gave two names 

 to the same insect, viz. belia melanochloros to actual specimens or a description 

 he had of Batna individuals captured in May, and tagis mauretanica, which 

 he gave to the figure of pechi Oberth. nee Stdgr., which was captured by J. Merkl 

 at Lambessa in April. As there are specimens of both melanochloros Rober 

 and algirica Oberth. among the spring brood of ausonia from Guelt-es-Stel, 

 and intermediates between these and the typical individuals of this race, it is 

 quite clear that they are only extreme aberrations, and however regrettable it 

 is, there being only these two names available for the Central and South Algerian 

 race, and algirica Oberth. being the oldest, the subspecific name becomes 

 Euchloe ausonia algirica Oberth. Now, as both these names were applied only 

 to the spring brood, the summer brood is without a name, and I propose to 

 call it pscudonyvms, and this subspecies must be altered in the table to : 



Enchloe ausonia algirica Oberth. 

 gen. vern. algirica Oberth. 

 gen. aest. pseudonymus Rothsch. 

 Central and South Algeria. 



The higher Atlas specimens of ausonia sometimes stand somewhat in between 

 the two North African local races, as was to be expected.] 



15. Euchloe ausonia crameri Butl. 



Euchioe crameri Butl., Entom. Month. Mag. vol. v. p. 271. No. 2 (1869) (South Europe ! !). 



This is the form which occurs on the littoral, in the Tell, and on the northern 

 slopes of the Northern Atlas chain ; it is quite similar to Spanish and Portu- 

 guese specimens, and does not appear to be quite so variable as the next form. 



1 Rabat, Morocco, 1914, A. Thery.x 

 39 Moroccan Frontier, May 1914, Faroult.x 

 49 Masser Mines, May 1914, Faroult.x 



7 Nedroma, May 1914, Faroult.x 

 27 Lalla Marnia, May 1914, Faroult.x 



3 Tlemcen, April 1913, VV. R. and E. H. 

 27 Titen Yaya, May 1915, Rotrou.x 



4 Oran, April 1913, W. R. and E. H. 



5 Environs d' Alger, January — February 1913, Captain Holl. 



13 Blida les Glacieres, May— June 1907-1908, Dr. Nissen and AV. R. and 

 K. J.x 



21 Hammam R'ihra, May— June 1908-1913, W. R., E. H. and K. J.x 



5 Constantine, May 1882 and 1908, W. R. and E. H. and H. J. Elwes.x 

 119 Hammam Meskoutine, Jlay- June 1909-1914, W. R., E. H., and K. J.x 

 42 Souk Ahras, April 1914, W. R. and K. J. 



29 Envii-ons de Tunis, March— Mayl908-1915, E. Blanc and Max Bartel.x 

 Those marked with a x after the collector's name include or consist entirely 

 of the gen. aest. butleri. The Tring series ex Mauretania consists of 391 specimens. 



