igir.] G. RiCARDO : The Oriental Tabanidae. 337 



Ricardo, in the antennae. Bigot seems to have overlooked the 

 second joint, which is very small, and described the third joint as 

 the second one ; the first joint is long, cylindrical, and the third 

 joint very wide, the basal division being large and swollen ^ the re- 

 maining divisions very small. The abdomen is black, with the 

 segmentations grey ; the two rows of spots mentioned by Bigot are 

 hardly noticeable. The legs have two rings of light colour on the 

 middle and posterior tibiae, and the base of the fore tibiae is 

 yellowish. The wings have two indistinct rosettes, Ricardo, Ann. 

 Mag. Nat. Hist. (8), i, p. 59. 



This species probabl}" belongs to this group with the first joint 

 of antennae very stout and it is possible that my new species 

 validicornis is identical, though it is apparently distinguished by 

 the presence of fringes of hair on hind tibiae, said to be absent in 

 Bigot's species ; a further examination of Bigot's type with regard 

 to the markings of wing is imperative before coming to a 

 decision. 



Since writing this paper I have received from M. Surcouf of 

 the Paris Museum a copy of his paper in Bull. Mus. Hist. Nat, de 

 Paris, 1909, No. 7, p. 453, in which he establishes a new genus 

 Potisa for this species and suggests my H. ruhida will belong to it 

 also, but as already remarked I have left this species near H. 

 singular is owing to the peculiar markings of wings. The confor- 

 mation of the first joint of antennae in these species H. pachy- 

 cera, validicornis and annandalei hardly seems to justify the estab- 

 lishment of a new genus divided off from Hacmatopota, as the 

 shape of the antennae in Haematopota varies very considerably, but 

 only in small gradations, while the t^'pical markings of wings and 

 other characteristics remain the same. 



Group V. 



The third joint of antennae broad and flattened on its first 

 annulation, the last three annulations forming a narrow apex; the 

 first joint incrassate, nearly as long as or longer than the first annu- 

 lation of the third joint. 



This group is allied to the genus Par haematopota established 

 by Grunberg (Zool. Anzeig., xxx, p. 360) in 1906 for a new 

 East African species which he named P. cognata. Speiser in Hy- 

 men Dipt., vii, p. 360 (1907), added H. vittata, Loew, to this new 

 genus [Mr. Austen states this is incorrect, see African Blood-Suck- 

 ing Flies, p. 122 (1909)] and remarks that H. decora, Wlk. [H. dor- 

 salis, Loew, is now a synonym of this species), and its related species 

 — differing from other Haematopota species by the peculiar form of 

 the third antennal joint — form a connecting link with Parhaema- 

 topota, the establishment of which as a genus is only justified pro- 

 visionally, in the present imperfect state of our knowledge. It 

 certainly seems advisable to refrain for the present from creating 

 new subgenera, and to rest content with grouping allied species 



