( 575 ) 



The figures of intermedins and eknomius do not quite agree. This is partly 

 dne to Speiser's figures being taken from a ? , while Kellogg and Paine figure a cJ. 

 Moreover, there are several fairly obvious inaccuracies in the drawings. lu Paiae's 

 figure, (■(/., tlie jironotuni is too broad anteriorly, while in Speiser's drawing the 

 elytra are too wide, laterally too evenly rounded, and apically too straight. The 

 sutural slit is continued to the base as a distinctly impressed linear groove in 

 the specimens, but not in Speiser's figure. 



The similarity in the detail of structure between intermedius and spasinae 

 (adult) is very close. But, besides the much shorter elytra, intermedius is easily 

 recognised by the posterior abdominal tergites not bearing a row of long bristles 

 at the apex. 



The male has only one row of bristles on the abdominal tergites, apart from 

 the additional lateral bristles, while the female has two or three rows and bears in 

 addition two very long bristles on the sixth and seventh segments, one being placed 

 on each side at some distance from the centre. 



The prosternum has the same shajje as in E. spasmac, the anterior margin 

 being rounded in the centre (within the excision) and the intercoxal process being 

 long, narrow, pointed, and strongly chitinised. 



The British Museum collection contains : 



3 (J cJ (among them the type of eknomius) and one ? , received by the Entomo- 

 logical Research Committee (Tropical Africa), from Harold H. King, who found the 

 specimens on a bat at Khartum on September 3, 1909. 



Specimens in other collections : 



1 S from the same source in the collection of Professor Kellogg ; 



1 i and 1 ? in the Konigl. Zoologische Musenra of the University of 

 KOnigsberg, from Egypt, off Taphozom perforutus. 



3. Eoctenes nycteridis Horv. (1910) (PI. XIII. fig. 5—8). 



Ad. et iuc. — Roslro triarticulato, articulo apicali duobus primis multo longiore; 

 prosterni jirocessu intercoxali ajjice param sinuato obtuso ; tarsorum quatuor 

 posticorum unguibus basi dente magno iustructis. 



Patria : Africa orient. Germanica ; Uganda. 



Clmoplax nycteridis Horviith, Ann. Mas. Nut. Hwig. viii. p. 572. tab. 14. figs. 2. 3. 4 (1910) 

 (Shirati, Tictoria Nyanza, off Nycteris hispida, one specimen). 



The artist who drew Horvath's figures did not consult the specimen very closely, 

 as is quite evident from the upper and under sides of the prothorax and from the 

 hind tarsus, which latter is not a Polyctenid tarsus at all. For this reason we 

 consider the four ? ? from Uganda which are in the British Museum to belong to 

 nycteridis in spite of all the difl'erences from those figures * Horvath's specimen is 

 doubtless also a ? . The proboscis is drawn as consisting of four segments (a small 

 basal one and three others), which we attribute to an oversight on the part of 

 the artist ; and the claws in the enlarged drawing of the fore tarsus are certainly 

 quite wrung. The following description is taken entirely from the British Museum 

 specimens. 



Adult specimens. — We know only the ? sex. There are three dorsal combs as 

 in the adnlt examples of the preceding species of Eoctenes. The bristles on the 



* Dr. Uorvatb, to whom \vc sent our ilrawiiigs for comparison with the type of nycteridis^ informs 

 us that they agree with bis specimen. 



