On the Tabaninae of the Family Tabanidie. 349 



XLIX. — Notes on the smaller Genera of the Tabauiuae of the 

 Family Tabanid^ in the British Museum Collection, h^ 

 Gerthude Ricarbo. 



Tabanin.e. 



The following table includes the genera comprised in the 

 second division ot" the Tabanidtie, easily distinguished from 

 those of Paugoniuse, the first division, by the absence of 

 spurs on the hind tibiae and of ocelli. The geuus Diti/lomi/ia, 

 formed by Bigot, is not included, as the one species for 

 which he created it belongs to Gastroxides, an ohier genus; 

 Bigot's genus must therefore sink. As regards Dasybasis, a 

 geuus formed by Macquart for an Australian species, I have 

 no knowledge of it, and its position in the table is only 

 based on his description. 



One new genus is included, formed for a species from 

 Ceylon. Remarks on Hiemutopota will follow later. 



Hind tibise with no spurs. Ocelli 

 absent. 



1. Thu'd joint of anteunte with four divi- 



sions, no tooth or angulation 2. 



Thirdjointof antennae with hve divisions. 5. 



2. Hings of the third joint of antennae so 



distinctly divided that the antennae 



appear as six-jointed Hexatonm, Meig. 



Kings not so distinctly divided ; the an- 

 tenna always appear as three-jointed. . 3. 



3. Wings marked with rings and circles of 



darker colouring Hcematopota, Meig. 



Wings not so marked 4. 



4. First cxnd second joints of antenna in the 



male pubescent, the third joint longer 



than the lirst. Eyes hairy Dasybasis, Macq. 



5. First joint of antennae globular, situated 



on a protuberant projection of the fore- 

 bead Bolbudimjia, Bigot. 



First joint of anteame not globular .... 6. 



6. Tbiid joint of autennte simple, not fur- 



nished with a tooth or distinct angular 



projection 7. 



Third joint of antenme furnished with a 

 tooth or a distinct angular projection. . 9. 



7. Body covered with metallic scales Lejjidoselaffii, Macq^, [Ha- 



clrus, I'ertyJ. 



Body metallic in colouring Sdasoma, Macq. 



Body without metallic scales and not 



metallic in colouring ; the liist antenual 



joint longer than is usual in Tabanus ; 



wings usually with brown markings . . 8. 



