OF OSHOGBO AND ILESHA DISTRICTS, SOUTHERN NIGERIA. 275 
SR IE 
1910. Gil 
—-. VI. | VIL VILL] 1X. | 
‘xa, | X01} 1 1 |u| I, |rv. | v.| Vv. 
Rainy Season. | — | — | — | -- | Rainy Season. 
z | 
i | 
II | 
TABANIDAE. i 
Chrysops longicornis, F.. | + 
Hippocentrum versicolor; Theo. pt] +t | | 
Haematopota decora, Walk. ...} +} + | 
Tabanus subangustus, Ric. | + | 
os quadrisignatus, Ric. ... | | | 
| | 
| 
++ 
i 
i 
= 
Bs 
Re 
A taeniola, P. de B. 
MUSCIDAE. | | | 
Glossina palpalis, R.D. ... odo | 
Stomoxys nigra, Macq. .«.. ee | + 
++ 
++ 
+ 
4+ 
HIPPOBOSCIDAE. 
| 
| | 
Hippobosca maculata, Leach ... | | } (ee | | 
| | 
Stegomyia africana.—This mosquito bites only at dusk ; just before and after 
sunset. Directly darkness comes, it troubles one no more. This was particularly 
noticeable in Oshogbo in March when, for a time, it was the only mosquito 
present. 
Mansonioides uniformis,—All specimens of this mosquito caught at Oshogbo 
after September, 1910, were affected with an immature parasitic mite. This 
species is common in Oshogbo in January and August. I could, however, get 
specimens whenever I chose in the Oshogbo Jail. I never succeeded in finding 
the larve. 
Culex duttoni is very common in Oshogbo during October. 
Tabanus subangustus.—This fly has also been caught by me in July, 1910, 
at Ibadan. It is very common in Oshogbo in May and October. The females 
are attracted by light and white clothing towards dusk and in the early morning. 
T'. thoracinus.—One specimen of this fly was caught on a window-pane in 
Ikirun Railway Station. It may have come into the district by train. 
Hematopota decora.—This fly is very common in Oshogbo all the year round, 
but especially so in November. It does not bite man if animals are present and 
it seems to be especially fond of horses. It is most troublesome in the early 
morning and late evening. 
Hippocentrum versicolor is the commonest biting fly in the Oshogbo 
district in June, July and August, excepting perhaps Stomoxys nigra. In my 
experience it is not seen during any other month. 
21367 G 
