of the Family Tabanida?. 95 



especially as to the inoras.satc or rylindrical first joint, but 

 the legs alTord good characteristics, lie considers the wings 

 very diflicult to describe, but gives some of the chief points. 

 To the above I am inelincnl to add the shape and size oE the 

 frontal callus as useful, the general shape of the anteniue 

 (which vary considerably), and to rely upon the presence or 

 absence of rings on the legs and the possession of a white 

 base to the tibiic. 



Tliough the markings of the wings may be relied upon as 

 a rule, there is uo doubt that they vary slightly in different 

 specimens of one species, as in the shape or length of the 

 ai)ical band and in the presence or absence of the pale 

 markings at the openings of the cells. The rings on the 

 legs also are not to be implicitly relied upon, a second faint 

 pale ring sometimes appearing in a species which, as a rule, 

 has only one ring ; this occurs ehicHy on the fore tibia). 

 jNfy tables are drawn up only for the females. 

 Those species marked with an asterisk denote there arc 

 specimens of them in the IJritish ]\Inseum collection. 



Tlirough the kindness of Mr. J. A. Gerald. Strickland, who 

 has devoted a great deal of time and trouble to the work, I am 

 enabled to give photographs of the wings of all the new 

 species but one, of four of Bigot's types, and of two of 

 Walker^s types, which it is hoped w ill be of assistance in the 

 identification of the species and will save the wearisome 

 labour of reading through long descriptions of the intricate 

 markings of the wings. The actual colouring of the wings 

 is given in the letterpress as nearly as possible as it strikes 

 the naked eye. The magnification is approximately ten 

 diameters. 



The species described by Wiedemann as Hmmatupoia 

 coarctata (Auss. zweifl. Ins. p. 578) from South Amereia does 

 not belong to this genus, but to Acanthocera, Macq., as 

 surmised by Bigot (Bull. Soc. Zool. Fr. xvi. p. 74, 1890), 

 and is included in my table of the latter genus in Ann. it 

 Mag. Nat. Hist. xiv. (7) p. 363 (1904). This genus does 

 not occur in South America. 



Palcearctic Region. 



For a catalogue of the Hcematopota of the Palaearetic 

 Region, that of Bezzi, published 1903 in his ' Katalog der 

 palaarktischen Dipteren,^ should be referred to. 



The following amendments to it should be noted, viz. 

 H. lusitanica, Guer., is a distinct species, not a synonym 

 of H. phivialis, L., and H. tristis, Bigot, is a synonym of 

 U. pluvialis, L., not a distinct species. 



8* 



