1022 REPORT OF THE HARVARD AFRICAN EXPEDITION 
REPORT UPON CERTAIN ECTOPARASITES 
OF MAMMALS 
By Proressor G. F. Ferris, Sranrorp University, CALIFORNIA 
Dr. J. Bequaert has submitted to me the ectoparasites of mammals collected 
by the Harvard African Expedition, which are herewith reported upon. The 
collection is small, but it contains material of exceptional interest. I have in- 
cluded in the report certain other material having a definite bearing upon that 
collected by the Expedition, this consisting of specimens taken by me some years 
ago from mammal skins in the United States National Museum. The types of 
the new species will be deposited at the Museum of Comparative Zodlogy, 
Cambridge, Massachusetts. 
HEMIPTERA 
POLYCTENIDAE 
Of one of those rare parasites of bats belonging to the hemipterous family 
Polyctenidae, three specimens are included. Thanks to the careful work of 
Jordan, it is possible to identify these quite positively. 
Eoctenes nycteridis (Horvath) 
Text Fig. No. 12 
1910. Ctenoplax nycteridis Horvath, Ann. Mus. Nat. Hungarici 8, p. 572; Pl. 14, figs. 2-5. 
1912. Hoctenes nycteridis Horvath, Jordan, Novitates Zoologicae 18 : 575-576; PI. 18, figs. 5-8 ( ¢). 
Previous Recorps. Thus far known only from one immature and five mature 
specimens, the adults all females from “‘bat,’’ Entebbe, Uganda, and from 
Nycteris hispida, Shirati, southeastern shore of Lake Victoria. 
PRESENT Recorp. A single adult male and two nymphs that seem certainly 
to belong to the same species, from Petalia arge (Thomas), Du River, Camp 
No. 3, Liperra (J. Bequaert). 
Notes. The species being at present known only from the female and nymphs 
it seems worth while to figure the male. The single adult specimen agrees closely 
with the description and figures given by Jordan, except in certain minute and 
undoubtedly insignificant details. According to this author the prosternum in 
the female is slightly emarginate at the tip, while in this specimen it is merely 
broadly rounded. Apparently also the specimen at hand has a smaller number 
of teeth in the pronotal comb. The beak of the adult is apparently but three- 
segmented — as is described for the species — but in the two nymphs it is 
clearly four-segmented, although Jordan describes the single nymph examined by 
him as having the beak three-segmented. 
I do not know that the spiracles have been described for any species of this 
group. I have here figured an abdominal spiracle (Fig. 12#). The other figures 
will supplement those given by Jordan. 
