ENTOMOLOGY 943 
Breucian Conao. — Kabalo, January 20, 1927; Luvungi, January 30, 1927. 
This species is widely distributed in the Ethiopian Region, from Senegambia 
and Eritrea to the Cape Colony. 
Tabanus sagittarius Macquart 
Tabanus sagittarius Macquart, 1838, ‘Dipt. Exot.,’ I, 1, p. 123 ( ¢; Cape of Good Hope). Surcouf, 
1909, ‘Et. Monogr. Taban. Afrique,’ pp. 92 and 105, Pl. II, fig. 14 (¢). 
Tabanus variatus Walker, 1850, ‘Insecta Saundersiana,’ I, Dipt., p. 64 (2; without locality). 
Austen, 1909, ‘Illustr. African Blood-Suck. Flies,’ p. 105, Pl. VIII, fig. 59 (9). 
Tabanus serratus Loew, 1858, Ofvers. K. Vet. Ak. Férhandl., Stockholm, XIV, (1857), p. 340 
9; Caffraria); 1860, ‘Dipteren-Fauna Siidafrikas,’ I, p. 39, Pl. I, fig. 21 (¢). 
Tabanus rubicundus Walker, 1848, ‘List Dipt. Brit. Mus.,’ I, p. 161 ( @; South Africa). 
Tabanus exclamationis A. Girard, 1881, Jorn. Sci. Ac. Lisboa, VIII, No. XXXI, p. 228 ( ¢; Angola, 
between 10° S. and 13°S., and 16° E. and 19° E.). 
BrEuGian Conao. — Elisabethville (Mich. Bequaert). Katanga (Valdonio). 
Uele River (J. Rodhain). Bolobo to Lukolela; Faradje (H. Lang and J. P. 
Chapin). 
This species seems to occur throughout the Ethiopian Region. Many of the 
published records are probably based upon incorrect identifications. 
Tabanus socius Walker 
Tabanus socius Walker, 1848, ‘List Dipt. Brit. Mus.,’ I, p. 160 (¢@; South Africa). Surcouf, 
1909, ‘Et. Monogr. Taban. Afrique,’ pp. 92, and 104, Pl. II, fig. 18 (9). 
A number of records of 7’. socitus have been published for the Belgian Congo 
and in a former paper I have referred to the species several specimens I had taken 
in the Katanga. One of these from Katobwe (near Bukama), and another from 
Lukonzolwa, are before me and appear to be true 7’. socius. Some of the other 
records may be due to wrong identifications. Moreover, I am in favor of Austen’s 
view that 7’. socius is a mere form of 7’. taeniola. Surcouf’s statements to the 
contrary are far from conclusive. It would seem that 7’. socius represents a 
variation transitional between 7’. taeniola Palisot de Beauvois (with more or less 
uniform median, abdominal stripe) and 7’. sagittarius Macquart (in which the 
stripe is replaced by a row of triangles). 
In so far as one can rely on published records in this difficult group, 7. socius 
is more or less typical of the savanna country, where it is widely distributed 
throughout the Ethiopian Region. 
Tabanus taeniola Palisot de Beauvois 
I 
Tabanus taeniola Palisot de Beauvois, 1805-1821, ‘Insectes Recueillis en Afrique et Amérique, 
p. 56; Atlas, Pl. I (Dipt.), fig. 6 (9; Oware and Benin, Southern Nigeria). Austen, 1909, 
‘Tllustr. African Blood-Suck. Flies,’ p. 102, Pl. VIII, fig. 61 (¢). 
Tabanus guineensis Wiedemann, 1824, ‘Analecta Entomologica,’ p. 21 (; Guinea). 
Tabanus subelongatus Macquart, 1845, ‘Dipt. Exot.,’ Suppl. I, p. 31 ( 9; Caffraria). 
Tabanus macrops Walker, 1848, ‘List Dipt. Brit. Mus.,’ I, p. 164 (7; Egypt). 
Tabanus longitudinalis Loew, 1852, Ber. Akad. Wiss. Berlin, p.658 (¢; Tette, Mozambique). 
Tabanus dorsivitta Walker, 1854, ‘List Dipt. Brit. Mus.,’ V, Suppl. 1, p. 23 (2; Gambia). Not 
Tabanus dorsivitta Walker, 1850. 
