8 
Psyche 
[March- June 
NOTES ON TABANIDiE (DIPT.) FROM PANAMA 
V. THE GENUS TABANUS , SUBGENUS 
BELLARDIA RONDANI 
By G. B. Fairchild 
Junior Medical Entomologist 
Gorgas Memorial Laboratory, Panama, R. de P. 
Subgenus Bellardia Rondani 
Bellardia Rondani, 1863, Arch, per La Zool., Modena, 
III, 1, p. 81. (with T. albonotatus Bell.). Enderlein, 1925, 
Mitt. Zool. Mus. Berlin, 2, p. 394. (Type, T. oculus Walker 
= T. albonotatus Bell.) Krober, 1932, Rev. Ent., II, 3, pp. 
290, 300 (in part). Borgmeier, 1933, Rev. Ent. Ill, 3, 
p. 288. Krober, 1934, Rev. Ent., IV, 2, p. 261 (in part). 
Lophotabanus Szilady, 1926, Biol. Hung., I (7), p. 25. 
Krober, 1929, Zool. Anz., LXXXIII, p. 120 (14 species, no 
type). Krober, in Borgmeier, 1933, Rev. Ent., Ill, 3, p. 295 
(Type, T. flavibarbis Macq. 1845) . Krober, 1934, Rev. Ent., 
IV, 3, p. 295. Bequaert, 1940, Rev. Ent., XI, 1-2, p. 289 
(Type, T. bifloccus Hine 1925). 
The species included in Lophotabanus by Szilady (1926) 
and later authors are, in my opinion, not subgenerically 
separable from T. oculus Wlk., which is the genotype of 
Bellardia Rond. 1863. The only difference seems to be the 
presence of a closed first posterior cell in oculus , but as a 
number of other species have this cell strongly coarctate, 
while differing in no other important respect, it would seem 
best to discard Lophotabanus entirely. The limits of the 
group are not clearly definable, some of the species showing 
many points in common with T. sorbillans Wied., and T. 
rubrof emorata Krob., species placed by Krober in Macro- 
cormus Lutz and Bellardia Rond. I am of the opinion that 
T. ferrifer Wlk., T. olivaceiventris, Macq. and other large 
species with a small black spot on the prescutellum only, 
show a greater resemblance to a group of large species in- 
