Pahearclic Region in the British Museum. 197 



remarked by others, I cannot follow him satisfactorily in 

 many of his minute differences, chiefly in the shape of the 

 palpi and the length of the forehead ; in the females they do 

 not seem marked enough for the identification of species 

 such as, for example, solstitialis and tropicus. 



The following species have been found in Algeria, collected 

 by the Rev. A. E. Eaton : — 



Atylotus tomentosus, Macq. ; Atylotus alexandrinus, Wicd.; 

 Atylotus rusticus, F. ; Tabanus autumnalis, L. ; Tabanus 

 cordiyer, Mg. ; Tabanus pvlchellus, Loew ; and one new 

 species described below. 



Atylotus tomentosus, Macq. 



One male " near Biskra, along the route of ' des Zibans ' 

 in the cornfields, on ' Ammin Yisnoga," 18.* v. 93 " {Eaton), 

 94. 114. 



One female from Constantine, 28. v. 95 {Eaton), 06. 137. 



One female " from Constantine, on the edge of the pine- 

 plantations on the top of the hill north of Mansoura, 

 11. vi. 94'' {Eatun), 95. 34. 



The male agrees with the figure in Explor. d'Alger. 

 (Lucas) ; the figure in Macquart's Dipt. Exot. is different 

 and apparently depicts a female specimen. 



Atylotus alexandrinus , Wied. 



One male from Colonne Voirol, Algiers, 5. vi. 93 {Eaton), 

 94. 114. 



There is also a male from Tunis {F. Moore), 68. 4. 



The third joint of the antennte is wanting; the first 

 posterior cell of the wings is narrowed at its apex, which 

 is not mentioned as a characteristic of A. alexandrinus 

 by any authors ; otherwise these specimens agree with the 

 description. 



Atylotus rusticus, L. 



r flaviceps, Zett. ; ? ntralis, Zett. ; Housselii, Macq. 



Two females "from Constantine, on the edge of the pine- 

 plantations on the top of the hill north of Mansoura; visits 

 'Ferula.' 11. vi. 94" {Eaton), 94. 114. 



The Tabanus Rousselii, INlacq., a species from Algiers, is, 

 I consider, a synonym of Atylotus rusticus, F. 



These specimens differ from the description of Atylotus 

 7'usticus only by the apex of the third joint of the antennas 

 being blackish ; the markings on tlie forehead, which seem 



