PLATE VI. 





Eggs of: i, Grabhamia jamaicensis ; 2 , Janthinosoma varipes ; j,Grabhamta 



discolor. -4, Janthinosoma postkata; 5, Psorophora ciliata;6, P. howardii. 



(Plates vi. to vin. drawn to scale, enlargement about 860 diameters.) 



