352 Mr. E. E. Austen on new 



<lisk and becoming obsolete towards the base ; the interstices 

 broad, plane, and smooth, the seventh distinctly carinate 

 behind. 



There is but one species like this — T. marginalis, no. 1329. 

 It has a more transverse thorax ; the humeral angles are 

 more rounded, so that the base of the thorax seems as wide, 

 or almost as wide, as they are. The elytral channels and 

 margins are wider ; the thoracic dorsal groove is deeper, and 

 the other sculpture differs, the sutural stria? only of the elytra 

 attain the apex, the others becoming obsolete there; it has 

 two ocular set£e. 



In T. carbonarius there is but one seta, placed close to the 

 inner and back part of each eye, and this seems to arise from 

 a minute swelling instead of a distinct puncture. The pos- 

 terior tibia? are slightly arched. In T. marginalis the hind 

 margins of the thorax arc thickened and flattened near the 

 posterior angles. 



? . Length 3£ lines ; breadth 1§ lines. 



Manawatu Flats, nine miles below the Gorge. 



One female, amongst other Oarabidse, collected by Mr. W. 

 W. Smith and Mr. Frank Park. 



[To be continued.] 



XXXVIIT. — New African Phlebotomic Diptera in 1 he British 



Museum [Natural History). — Part V. Tabanidcc (con- 

 tinued). By Ernest E. Austen *. 



TaHANINJE. 



Hippocentrum f, gen. nov. 



Allied to Hsematopota J, Mg. } but distinguished by the 

 head (at least in the ? ) being wholly or for the most part 



* For Parts I.-IV. see Ann. & Ma<r. Nat. Hist. ser. 8, vol. i. pp. 209- 

 228 and 401-428, and vol. ii. pp. 94-116 and 274-301. 



t lttttos, a horse; Kevrpov, a horse-goad. 



% I do not propose to follow Dr. Kertesz (' Catalogus Dipterorum 

 hucusque Descriptorum,' vol. iii., Budapestini, 1908, p. 201) in adopting 

 as the designation of this well-known genus the name CArysozona, Mg. 

 (' Nouvelle" Classification,' 23. 34, 1800), which, although actually 

 possessing three years' priority over Hcematopota , was, so to speak, still- 

 born, i. e. never entered into common use, and for more than a century 

 has remained buried in oblivion. This is surely a typical instance of a 

 case in which the rules of strict priority should be disregarded in favour 

 of expediency and common-sense ! 



