56 INSECUTOR INSCITI^ MENSTRUUS 



spine. No basal hooks. Basal appendages small, but with 

 many hairs. 



United States, Mississippi Valley region. 



Culex (Choeroporpa) peccator Dyar & Knab, 



Culex peccator Dyar & Knab, Smith. Misc. Colls., quart, iss., 



lii, 256, 1909. 

 Culex incriminator Dyar & Knab, Smith. Misc. Colls., quart, iss., 



lii, 257, 1909. 

 Culex peccator Thibault, Proc. Ent. Soc. Wash., xii, 20, 1910. 

 Culex peccator Howard, Dyar & Knab, Mosq. N. & Cent. Am. 



& W. I., iii, 318, 1915. 

 Culex incriminator Howard, Dyar & Knab, Mosq. N. & Cent. 



Am. & W. I., iii, 409, 1915. 

 Culex (Melanoc onion) peccator Dyar & Knab, Ins. Ins. Mens., 



V, 179, 1917. 

 Culex (Choeroporpa) peccator Dyar, Ins. Ins. Mens., vi, 104, 1918. 



The clasp-filament is thick, ending in a stout horn, the spine 

 slender and weak; on the outer side before tip is a separate 

 tuft of setse, not consolidated into a spine. Outer division of 

 lobe of side-piece with a very large leaf on the outer limb, pre- 

 ceded by a slender filament on a little pedicel of its own ; mid- 

 dle filament and the two of the inner limb all approximated, 

 the large one hooked but not expanded. Second uncal plate 

 furcate, one limb horn-like ; no third spine. First plate slender, 

 reaching to the lower limb of second plate, with a minute angle 

 near the middle, but no horn. Inner division of lobe of side- 

 piece with the inner arm reduced. 



United States, Gulf and South Atlantic regions. 



Culex (Choeroporpa) terebor, new species. 



Clasp-filament very narrow, the tip snout-like, the spine ap- 

 pendiculate ; crest-hairs very short. Outer division of lobe of 

 side-piece with a slender inner arm ; a long and a short filament 

 from its tip, the long one hooked ; middle filament stout but 

 not very long; outer filaments about three, closely grouped on 

 the side of the lobe. Inner division with the two limbs well 

 separated, the inner one short, but not reduced, each bearing a 

 long curved filament with expanded pointed tip. Second uncal 

 plate shallowly furcate, one limb free, the other extended in a 



