4 « 
Length 17 to 20 mm.; length of wing !<> nun.; expanse of wing 
34 to 35 mm. 
Localities :—Several females of this species were first Hail t» M 
by Rev. and Mrs. Billington, from Tshtimbiri. It has received its 
specific name as a mark of our appreciation of the interest shown in 
the work of the Expedition by the collectors A female was also 
caught, near the river, at Bolengi. The only male wc |hissc'n was sent 
to us by the Rev. M. Ave, from near Matadi. 
It is an extremely well-marked insect, and is easily recognised from 
the other African species of Tabanus both by the banding of the 
abdomen and the markings of the wings. 
Tabanus spp. incert. 
Six additional species of this genus were taken in the localities 
named below; but the specimens have all suffered from mould and 
other injuries, so that it is impossible either to identify them with any 
certainty or to give adequate descriptions of them. One can onl) 
add that two of these specimens arc referable to the Socialts group. 
Localities: I.uano on the Kwilu River (Major Malfeyt, June; 
1905); Matadi; Wathen, Leopoldville (Dec.) ; Lukolcla (Rcn White 
head, Aug.); Kuzu, in the region of the Lower Congo 
a EuropelnChouse^ TW ° ° f ^ Specimens werc cau g hl “ 
family 
SARCOPHAGI DAE 
Sarcophaga spp. 
Leopoldville (Dec ^ ^ re ^ e " tatlves of th >s genus were collects 
Malfeyt); and *Rasongo '(Apll) “‘t' ^ “ 
d.stnbuted one throughout ^ ‘ ^ *” 
Circumstances of capture - A ^ 
and in privies. Adult* 1 P c,me ns were caught in the c 
brought by natives h f hed laboratory front la, 
Some species are vivin * 01 larvae of Auchnterontyia lute 
deposited. Within a very Tew ^ ^ Ver >’ rap 
0 ten almost covered with them m,nutes ^ res hly excreted faeces 
