128 



American Midland Naturalist Monograph No. 3 



as basistyle, enlarged at base, constricted and slender to middle, broadly 

 expanded beyond middle, then tapering to a point and terminating in a short 

 stout claw (Ds-C) . 



LARVA. (Fig. 66). — Head much broader than long. Antenna about twice 

 as long as head, whip-like, sparsely spined basally; antennal tuft multiple, 

 barbed, arising from a notch on basal third; a pair of short, stout setae inserted 

 at middle of shaft; a short spine, seta, and membranous papilla at tip. Head 

 hairs: Preantennal (A) multiple, barbed; lower (B) multiple, barbed, reach- 

 ing anterior margin of head; upper (C) small, multiple, smooth; postclypeal 

 (d) small, multiple; sutural (e), trans-sutural (f) and supraorbital multiple. 

 Lateral spine of maxilla smooth. Upper lateral abdominal hairs single on seg- 



--IXT-L 



Fig. 65. Mansonia perlurbans (Walker). A. Hind leg. B, Palp and 

 proboscis of female. C, Male terminalia. 



