ENTOMOLOGY 905 
with hairy eyes, in which the third antennal segment is not of the usual crescent- 
shape, but is without upper angle, slender, only slightly spindle-shaped in the 
middle and somewhat compressed laterally. This character is found occasionally 
in certain species of T’abanus and may perhaps be used for a division of sub- 
generic rank. The description of Ateloza fiilleborni Enderlein (1925, Mitt. Zool. 
Mus. Berlin, XI, 2, p. 344; 9; Langenburg, Tanganyika Territory) reads 
astonishingly like that of Tabanus producticornis Austen (1912, Ann. Mag. Nat. 
Hist., (8) IX, p. 30; ¢; Umbeluzi River, twenty miles south of Lourenzo 
Marques, Portuguese East Africa). The latter likewise has the third antennal 
segment elongate and narrow, awl-like, and has an appendix to the fork of the 
third longitudinal vein; it is not stated whether the eyes are hairy or bare. 
Enderlein mentions that in his species the upper branch of the fifth longitudinal 
vein (M;) is present only as a short stump on the discal cell, but this peculiarity 
is probably accidental. 7’. producticornis has also been recorded from Zanzibar 
and from the coast of Kenya Colony. Since Ateloza is preoccupied, I propose 
for this group the new subgeneric name Atelozella (Type: Ateloza fiilleborna 
Enderlein, 1923). 
5. Ancala Enderlein is a fairly natural group of Tabanus in which the fore 
tibiae are considerably swollen. Eyes uniformly colored in life, bare. Wings 
hyaline with dark cross-bands; fork of third longitudinal vein normally without 
appendix. This group is strictly Ethiopian and comprises: 7’. africanus Gray, 
T. fasciatus Fabricius, 7’. latipes Macquart, 7. brucez Ricardo, T. necopinus 
Austen, 7’. septempunctatus Ricardo, and T’. subvittatus Ricardo. 
6. Huancala Enderlein agrees with Ancala in having strongly swollen fore 
tibiae and bare eyes; but the eyes are marked in life with numerous rounded 
spots, the wings are speckled nearly all over with black and hyaline, and the 
fork of the third longitudinal vein bears normally an appendix. This group also 
appears to be strictly Ethiopian and contains only two species: 7’. maculatissi- 
mus Macquart and 7’. trroratus Surcouf. 
7. Tabanus, proper, still covers the majority of the Ethiopian species (about 
110). Enderlein states that some of the African species belong to his genus 
Straba, but I am unable to use that name for a group of even subgeneric value. 
According to the author, Straba differs only from typical Tabanus in the eyes of 
the male being sharply divided into an upper area of very large facets and a 
lower area of much smaller facets. In every other respect, however, 7’. bovinus 
and 7’. sudeticus are so similar that any system which separates them must be 
regarded as highly artificial. 
Some of the Ethiopian species at present left in T'abanus, proper, will probably 
be found to form other natural groups of equal value with those discussed above. 
Thus 7. rothschildi Sureouf and 7. morsitans Ricardo seem to form in some 
respects the transition between J’abanus and Haematopota. These two species 
might perhaps represent in Africa the subgenus Glaucops Szilady (1923, Biologia 
Hungarica, I, 1, pp. 17 and 18), based upon the Palaearctic T’abanus hirsutus 
Villers (= T. haematopotoides Jaennicke). 
Although, with the confusion now prevailing in the taxonomy of the Tabani- 
