EXPLANATION OF PLATE VII. 



Fig-. 1. Pupa of Culex guiarti^ Blanch., lateral view. 



2. Diagram of the ventral view of the trumpets, the pupa resting- on them. 



3. Anal plates and segments of the same pupa ; dorsal view, to show the stellate hairs 



on the segments. 



4. Larva of Culex guiarti^ Blanch., dorsal view; the anterior dorsal plumes of the 



thorax are unusually long ; the hairs on segments 3-7 of the abdomen are 

 subplumose, and the siphon is longer than that of any other larva in the collection, 

 o. Anal plates of the pupa of Culex quasigelidus, Theo. ; ventral view, showing the 

 characteristic ^' cloud" or dark spot on the plates, and the plumes of branched 

 hairs on the segments 5 the contained imago is a male, as can be seen by the 

 ^' forcipes." 



6. One of the trumpets of the same pupa. 



7. Siphon of the larva of Culex quasigelidus, Theo. ; lateral view, the ventral side on 



the left. 



8. Antenna of the same larva. 



9. Characteristic tuft near the base of the antenna of the same larva. 



10. Siphon of the larva of Stegomgia I'oUinctor^ Graliam ; lateral view, with the 



ventral side on the left and showing a sub-siphonal plume of simple hairs. 



11. Spines on the siphon of the same larva. 



12. Anal segment of the same larva, lateral view ; the beard is denuded and is drawn 



as it exists on the soli!ary specimen examined ; it probably covers the greater 

 part of the ventral edge of the segment, 



