862 
REPORT OF THE HARVARD AFRICAN EXPEDITION 
* Tabanus canus Karsch. 
ce 
* %* 
* * 
* & & & He H * * * * * & *F * 
* & * &*# & He HH H & 
* * 
clarupes Ricardo. 
congoiensis Ricardo. 
coniformis Ricardo. 
denshami Austen. 
distinctus Ricardo. 
ditoeniatus Macquart var. bipunc- 
tatus van der Wulp. 
diversus Ricardo. 
fasciatus Fabricius. 
4 var. atripes van der Wulp. 
var. mixtus Surcouf. 
var. nigripes Surcouf. 
fraternus Macquart. 
fulvicapillus Carter. 
fuscomarginatus Ricardo. 
gedoelstt Surcouf. 
gratus Loew. 
canthinus Surcouf. 
arroratus Surcouf. 
laverant Surcouf. 
lufirensis J. Bequaert. 
maculatissimus Macquart. 
marmorosus Surcouf var. congoicola 
J. Bequaert. 
ce 
ce 
medionotatus Austen. 
muluba J. Bequaert. 
niveinotatus J. Bequaert. 
* nyasae Ricardo. 
obscurefumatus Surcouf. 
obscurehirtus Ricardo. 
i var. lubutuensis J. Be- 
quaert. 
obscurestriatus Ricardo. 
obscurior Ricardo. 
obscurtpes Ricardo. 
par Walker. 
quadrisignatus Ricardo. 
regnaultt Surcouf. 
ruficrus Palisot de Beauvois. 
ruwenzorii Ricardo. 
sagittarius Macquart. 
secedens Walker. 
severini Surcouf. 
sharpei Austen. 
socialis Walker. 
* Tabanus socitus Walker. 
ce 
x¥ + & & 
* ‘cc 
sufis Jaennicke. 
taeniola Palisot de Beauvois. 
thoracinus Palisot de Beauvois. 
ustus Walker var. disjunctus Ricardo. 
variabilis Loew. 
wellmanw Austen. 
zanthomelas Austen. 
* Thaumastocera akwa Grinberg. 
* Haematopota angustifrons Carter. 
* 3 
* * 
x & kK HH & ee eh oe Se oer Oe 
“ee FH He KF HH HH He KH F 
brunnescens Ricardo. 
brunnipennis Ricardo. 
ciliatipes J. Bequaert. 
copemani Austen. 
cruenta Austen. 
decora Walker. 
denshami Austen. 
diwisapex Austen. 
duttont Newstead. 
furva Austen. 
harpax Austen. 
hirsutitarsus Austen. 
hirta Ricardo. 
inornata Austen. 
insatiabilis Austen. 
laverant Surcouf. 
mactans Austen. 
masseyt Austen. 
neaver Austen. 
nigripennis Austen. 
ochracea (Bezzi). 
partifascia J. Bequaert. 
pellucida (Surcouf). 
pertinens Austen. 
perturbans Edwards. 
sanguinaria Austen. 
schoutedeni (Surcouf). 
similis Ricardo. 
stemulans Austen. 
tabanula J. Bequaert. 
torquens Austen. 
tumidicornis Austen. 
vecans Austen. 
vittata Loew. 
* Hippocentrum strigipenne (Karsch). 
* 
(a9 
versicolor Austen. 
On THE NATURAL GROUPING OF THE TABANIDAE 
The prevailing opinion among the specialists of the group seems to be that 
Enderlein’s recent classification of the Tabanidae into nine subfamilies and 
over one hundred and fifty genera does not express true relationships.! 
In 
view of the failure of this pretentious scheme of classification, any future at- 
tempt at a natural grouping of the horse-flies will probably be met with scepti- 
1 T have given a concise account of Enderlein’s views in 1924, Psyche, XX XI, pp. 36-40. 
