ENTOMOLOGY 885 
synonymizes Pangonia alternans Macquart and, if this synonymy is correct, the 
species could not belong in Scaptia, since P. alternans is described as having bare 
eyes. Surcouf (1921, ‘Gen. Insect., Tabanidae,’ p. 134) lists Pangonia fasciata 
Macquart as a variety of Tabanus barbatus Linnaeus, which he places in Corizo- 
neura, but gives no reasons for doing so; Macquart’s description of P. fasciata 
does not mention the eyes. As for Pangonia fulvifascia, Enderlein refers it with 
doubt to his genus Corizoneura and Walker’s description is silent about the eyes. 
Provisionally I include in Scaptia three Ethiopian species: S. senegalensis 
(Macquart), S. scoliiformis (Enderlein), and S. fulvifascia (Walker), the first 
one described from the Senegal, the other two from South Africa. None of these 
occur in the Belgian Congo, where the genus Scaptia is not represented so far as 
known. 
Buplex Austen 
Buplex Austen, 1920, Bull. Ent. Res., XI, p. 139. Type by original designation: Pangonia suavis 
Loew, 1858. 
Although several of the African species included by Enderlein in his genus 
Corizoneura (not Corizoneura Rondani, which equals Nuceria Walker) belong in 
Buplex Austen,! Enderlein’s Corizoneura does not seem to be strictly synonymous 
with Buplex. His genotype, Pangonia angusta Macquart, 1847, is an Australian 
species which, according to Ferguson (1926, Bull. Ent. Res., XVI, 4, p. 303) be- 
longs to Ectenopsis Macquart. 
In Corizoneura albifacies Ricardo, of South Africa, which Austen includes 
in Buplex, the frons of the male is quite wide, the eyes being broadly separated. 
As I have seen no other males of African species of Buplex, I am unable to state 
whether or not this peculiarity holds throughout the genus. 
Buplez is here restricted to the species with ocelli and would then contain the 
following Ethiopian forms: Corizoneura albifacies Ricardo (1914), Tabanus 
barbatus Linnaeus (1764) (= Pangonia alternans Macquart, 1855), Pangonia 
fasciata Macquart (1834), Buplex fuscinervis Austen (1920), Pangonia leucomelas 
Wiedemann (1828), and Pangonia suavis Loew (1858). Enderlein lists Cori- 
zoneura albifacies and Pangonia leucomelas under Ommatiosteres, but specimens 
before me have distinct ocelli. Moreover, Wiedemann included his P. lewcomelas 
in the group with ocelli. 
In the Ethiopian Region, Buplex appears to be exclusively South African. 
No species has been found in the Belgian Congo. It is possible, however, that 
the genus occurs outside Africa. 
Ommatiosteres Enderlein 
Ommatiosteres Enderlein, 1922, Mitt. Zool. Mus. Berlin, X, 2, p. 336; 1925, loc. cit., XI, 2, p. 267. 
Type by original designation: Pangonia bifasciata Wiedemann, 1821. 
Ommatiosteres differs from Buplex merely in the absence of ocelli and I am 
by no means convinced that this peculiarity is of sufficient value in this group 
to warrant its use as a generic difference in the absence of other characters. 
1 Others are more properly placed in Phara Walker ( = Cadicera Macquart) or in Metaphara Ender- 
lein. 
