17-4: INSECUTOR INSCITI^ MENSTRUUS 



ture. Abdomen blackish above, distinct dorsal, segmental, 

 basal, white bands except on first two segments, continuing as 

 lateral patches. Venter dark. Wings hyaline, scales broadly 

 elliptical, narrower near base of the wings. Legs bronzy 

 brown. Claw-formula: 1.1-1.1-0.0. Length: Body, 3 mm.; 

 wing, 2.5 mm. 



Genitalia : Clasp-filament without horn-like tuft, second 

 uncal plate with the apex with three points, one of them 

 more strongly chitinized than the others and hook-like. Harpes 

 with comb-shaped tip. Outer division of lobe of side-piece 

 branched, one long branch with a short expanded leaf, one 

 short one with a long terminal filament and three hair-like 

 appendages ; inner division divided, each part with a long 

 filament with bent tip. 



Larva : Head-hairs all single. Antennae spicular, a large 

 tuft at outer third. Body slightly spicular. Air-tube stout, 

 slightly tapering, six times as long as wide ; pecten on basal 

 two-fifths of about sixteen teeth ; five pairs of hair-tufts 

 beyond the pecten. Comb of eighth segment a triangular 

 patch. 



We found the larvae in a ground-pool at Kabelstation in the 

 interior, May, 1919. 



Cotype, No. 3270S, U. S. National Museum. 



Culex (Choeroporpa) nicceriensis, new species. 



Proboscis moderate, swollen at tip. Palpi long in the male, 

 short in the female. Occiput clothed with coppery brown 

 narrow curved scales, black upright forked scales and flat 

 white scales at the sides. Mesonotum black, with coppery 

 brown narrow curved scales. Scutellum with similar vestiture. 

 Abdomen blackish above, distinct dorsal, basal, segmental, 

 white bands, except on first two segments, continuing as lat- 

 eral patches. A patch of dull flat golden scales on the middle 

 of the first segment dorsally. Venter black. Wings hyaline, 

 scales broadly elliptical, narrower near base of the wings. 

 Legs bronzy brown. Length : Body, 2 mm. ; wing, 2 mm. 



Genitalia : Side-piece twice as long as wide ; a divided lobe 

 on outer third, outer division with a terminal filament with 



