INSECUTOR INSCITI^ MENSTRUUS 77 



outer, each with stout filament with expanded pointed tip. 

 Second uncal plate furcate, the inner limb horn-like, the outer 

 slender, smooth, laterally directed ; a slender curved horn aris- 

 ing from the base of the inner limb. Articulated plate large, 

 trigonate, deeply emarginate outwardly. Plates at bases of 

 side-pieces also present, distinct, moderate, infuscated. Basal 

 appendages moderate, contiguous, oblique, with rather long 

 fine setae. 



The adult has some white scales on the sides of the head, 

 mesonotum with bright bronzy brown scales, abdomen with 

 basal segmental white bands, narrow at the base, broader out- 

 wardly. Legs brown, knees narrowly pale. Wing-scales on 

 the forks of the second vein moderately ovate. 



Type, male. No. 22745, U. S. Nat. Mus. ; "larvae in a ditch, 

 interior of the colony, January, 1919," Surinam (J. Bonne- 

 Wepster). 



Culex (Choeroporpa) idottus, new species. 



Clasp-filament narrowly snout-shaped, the spine appendicu- 

 late. Outer division of lobe of side-piece short ; a short inner 

 arm, bearing a long filament with hooked tip and a shorter 

 blade-shaped one; middle filament and the outer group of 

 three, approximate, almost sessile on the short column, the 

 lower outer one large and quadrately hooked, the articulation 

 subpedicellate and a little on one side. Inner division of lobe 

 of side-piece with the arms not separated, the inner about half 

 as long as the outer, each with a long crooked filament with 

 expanded pointed tip. Second uncal plate furcate, the inner 

 limb horn-like, the outer smooth, laterally directed ; a large 

 curved horn continuing the inner arm obliquely toward base. 

 Articulated plate large, trigonate, infuscated. Basal hooks 

 long, recurved, with pointed tips. Basal appendages rather 

 large and long-elliptical, separated, oblique, with many rather 

 long fine setae. 



The adult has the mesonotum bronzy brown, head with 

 white lateral scales; legs dark brown, without knee-spots, the 

 femora whitish below. Wing scales narrowly ovate, widest on 

 forks of second vein. 



