Mr. W. F. Kirby on Odonala from Sierra Leone. 07 



Idalus pythia } sp. n. 



Male. — Head, collar, and tegulae pale greyish, fawn-colour j 

 antennas fawn-colour, the tips white; abdomen yellow, the 

 underside white, the anal segment pale greyish fawn-colour; 

 legs white. Primaries semihyaline yellowish white, the 

 basal half of the wing pale greyish fawn-colour, with several 

 yellowish-brown spots along the inner margin ; a largo, round, 

 pale greyish fawn-coloured spot with an indistinct darker 

 brown centre close to the apex : secondaries semihyaline 

 yellowish white, dark yellow along the inner margin. 



Expanse \{ inch. 



Ilab. Bolivia, Songo [Mas, Druce). 



Opharus amata, sp. n. 



Female. — Head, antennas, collar, teguke, thorax, abdomen, 

 and legs black ; abdomen banded with yellow. Primaries 

 olive-brown, palest at the base and along the costal margin, 

 the veins black ; a rather large indistinct blackish spot at the 

 end of the cell : secondaries semihyaline brownish black, the 

 fringe dark brown. 



Expanse 2 inches. 



Hab. Venezuela [Mas. Druce). 



IX. — Report on the Neuroptera Odonata collect?! by Mr. E. E. 

 Austen at Sierra Leone during August and September 1899. 

 By W. F. Kirby, F.L.S., F.E.S. 



[Plate II.] 



During Mr. Austen's visit to Sierra Leone, as a member of 

 Major Ross's expedition to inquire into the connexion between 

 mosquitos and malaria, he collected a considerable number of 

 dragonflies ; but as he captured long series whenever he was 

 able, the number of distinct species obtained amounted only 

 to eighteen. However, I am able to describe seven new species 

 in the present paper, two of which I have made the types of 

 new genera. 1 should also mention that specimens of most of 

 these have been in the Museum for some time, but have not 

 previously been described. 



In place of quoting full synonymy in the present paper, I 

 generally confine myself to quoting references to the original 



5* 



