NoVITATES ZOOLOGICAE XXI. 1914. 265 



XX. 



ON DIPTERA COLLECTED TN THE WESTERN SAHARA BY DR. ERNST 

 HARTERT, WITH DESCRIPTIONS OF NEW SPECIES. 



By ERNEST E. AUSTEN. 



PART IL* 



(Published by Permission of the Trustees of the British iluseum.) 



The material forming the subject of the present contributioQ, including the t}'pes 

 of new species described in the following pages, is in the British Museum (Natural 

 History). 



TABANIDAE. 



PANGONIINAE. 



Genus PANGONIA Latr. 



Pangonia maculata Fabr. 



{Syst. Ant!, p. 90 (1805).) 



Ten cJc? and thirteen ¥ ? from Hammam R'Irha, North Algeria, and si.K c?<? 

 and two ? ? from Hammam Meskoutine, North Algeria, May 1911 (Hon. L. W. 

 Rothschild and Dr. E. J. 0. Hartert). 



The British Museum (Natural History) previously possessed ? ¥ of tliis species 

 from Algiers and Hammam R'Irha, May 1911 (Hon. L. W. Rothschild), as also 

 a cJ and ¥ from respectively B6ne and Le Tarf, Algeria, 6. and 18. vi. 1890 (Rev. 

 A. E. Eaton). 



Pangonia sp. incert. 



One ? from Hammam Meskoutine, North Algeria, May 1911 (Hon. L. W. 

 Rothschild and Dr. E. J. 0. Hartert). 



This species, of which three t? c? and one ? from Constantine, Algeria, 10, 11. vi. 

 1894 (Rev. A. E. Eaton) were already contained in the Museum Collection, is closely 

 allied to the foregoing, but differs from it in having a much shorter face, in the 

 abdomen in both sexes being tawny-ochraceous instead of the third and following 

 segments in the ¥ being shining black or clove-brown, and in the wings being less 

 conspicuously spotted or blotched. 



TABANINAE. 



Genus TABANUS L. 



Tabanus nemoralis Mg. 



(Syst. Beschr. ii. p. 50 (1820).) 



One ¥ from Hammam R'Irha, North Algeria, May 1911 (Hon. L. W. Roth- 

 schild and Dr. E. J. 0. Hartert). ' 



Tabanus pulchellus Lw. 



(Verlt. sool.-bot. Ges. Wien, Bd. viii. p. 5117 (1858).) 



One t? from El Gol6a, Algerian Sahara, between 10. and 13. v. 1912 (Dr. E. J. 0. 

 Hartert and C. Hilgert). 



* For Part I. see this Journal, vol. xx. p. 460 (June 1913). 



