Genus Grabhamia. 



287 



they might be mistaken for Anopheles, owing to their horizontal 

 position in the water. They lie just below the surface film. 



Fig. 92. 



Grabhamia jamaicensis. 



Labial plate with hair on same (after Felt). 



Fig. 93. 



Pecten of G. jamaicensis. Theobald.' 

 (After Felt.) 



Pecten of another larva of G. 

 jamaicensis (after Felt). 



Rain-water pools of transient nature seem their favourite abode, 

 those found in the sewage ditch being exceptional. 



