70 M:-. F. W. Edwards on the 



Dr. A. Ingram has also bred E. chrysogaster, and sent 

 (23. iii. 1909) the following notes from Ashanti : — 



" l^otes relative to Eretmapodltes chrysogaster, Graham. 



" Ova appear to be laid singly like Stegomyia ova, often 

 not actually upon the surface of the water, but on the side of 

 the vessel almost in contact with the surface of the water. 

 Larvce are long and worm-like, bear some resemblance to the 

 larvse of Stegomyia, having a short syphon-tube hanging 

 almost perpendicular to the surface of the water when at rest, 

 and moving with a lashing worm-like motion when disturbed. 

 The most marked characteristic of the larva, however, appears 

 to be the length of time it can spend browsing at the bottom 

 of the vessel ; lying horizontally and crawling about like a 

 worm, it can remain 'below ' for longer periods of time than 

 any other Culex larva I have seen. 



" Pupce are very active when disturbed, but, like the larvae, 

 spend much time at the bottom of the vessel, ' sitting* in a 

 characteristic attitude upon their tails and swaying gently 

 backwards and forwards. 



" E. chryaogaster, like Stegomyia, is a ' house ' mosquito ; 

 the ova are laid in small collections of stagnant water in tins, 

 calabashes, &c. The eggs are never very numerous, less so 

 than those of Stegomyia ; at least Stegomyia and Eretma- 

 2')odites larvae are frequently associated together in small 

 collections of water, and tlie former are always in the 

 majority. 



" I have never known E. chrysogaster to ' bite.'' " 



" Akrokerri, Ashanti, 

 5/3/09." 



Brief Diagnoses of the Species. 



1. E. quinquevittatus, Theob. — Prothoracic lobes silvery- 



scaled. Mesothorax golden-scaled, with five sharply- 

 detined lines of black scales ; when denuded pale oehreous 

 brown. Hind tarsi of male simple. 



2. E. condei, Ventrillon *. — Prothoracic lobes with flat silvery 



scales. Mesothorax golden-scaled, with two longitudinal 

 lines and a continuous marginal line black; when 

 denuded pale oehreous brown. Hind tarsi of male 

 simple. 



I can see nothing to separate this species from 



* ' Archives de Parasitologie,' ix. 1905, p. 444. 



