NEW CULICINE LARVAE FROM THE GOLD COAST. 3 



Pupa. — There does not appear to be any distinctive feature about the pupa. 



Breeding" place. — The larvae were found in a hollow in a tree at Accra (fig. 2). 

 The waterj in which they were living was clear, but of a dark brown colour. A few 

 specimens of Culiciomyia nebulosa and two of Stegomyia unilineata were also bred 

 out from the larvae found in this tree. 



Fio;, 



2. A tree in a hollow of wliich were found larvae 

 of Stegomyia metallica, S. unilineata and 

 Culiciomyia iiehulosa. 



This particular strain of S. metallica was maintained in the laboratory and is 

 understood to be still flourishing now, seven months since the original larvae were 

 obtained. The mosquitos were kept in glass jars and were fed on honey and blood. 

 In this way generation after generation of larvae was bred without difficulty, and up 

 to the present no sensible effects have been observed as a result of this close in- 

 breeding. When isolated in single pairs, however, S. metallica did not breed readily. 

 (C250) a2 



