Tabanus. D I P T E R A. 217 



Genus IV. Tabanus. 

 Linn. Syft. Nat. page 999. 



The mouth of the Tabanus is extended 

 into a flefhy probofcis, terminated by two 

 lips. 



The roftrum is furniihed with two 

 pointed palpi placed on each fide of, and 

 parallel to, the probofcis. 



Scopoli affigns the following characters to the 

 Tabanus : 



The mouth armed with a probofcis, on which 

 are five bridles ; thefe bri files are feated (as in 

 his Conops, Anthrax, &c.) at the bafe of the 

 roftrum, and extended almoft to its extremity. 



The fheath is univalve and obtufe. 



The palpi are two in number, acuminated, 

 porrected, parallel, and incumbent upon the 

 roftrum, fo as to form a kind of fecond or upper 

 valve to the fheath, 



The fpecific characters of the Tabani are 

 chiefly taken from the colour of the eyes, which 



this 



