60 INSECUTOR INSCITI^ MENSTRUUS 



Inner division of lobe of side-piece with a long outer and short 

 inner arm, each bearing a long filament with expanded pointed 

 tip. Second uncal plate furcate rather shallowly, one limb 

 horn-like, the other rounded ; a curved horn well below the 

 middle of the stem. Basal hooks recurved, much broadened, 

 thin above. Basal appendages rather large, rounded, oblique, 

 setose, distinctly separated. 



Described from the Panama type. A specimen from Suri- 

 nam agrees, showing that this species is more widespread than 

 usual in the subgenus. It is possible that chrysothorax 

 Peryassu (1908) and chrysothorax Newstead and Thomas 

 (1910) are the same. These were described from Brazil and 

 Peru, but are not known to me in nature. 



Culex (Choeroporpa) elevator Dyar & Knab. 



Culex elevator Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, ;i17, 



1906. 

 Culex elevator Howard, Dyar & Knab (in part), Mosq. No. & 



Cent. Am. & W. I., iii, 414, 1915. 

 Culex apateticus Howard, Dyar & Knab (in part), Mosq. No. & 



Cent. Am. & W. I., iii, 321, 1915. 

 Cidex (Choeroporpa) elevator Dyar, Ins. Ins. Mens., vi, 106, 1918. 



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

 late. Outer division of the lobe of the side-piece with a slen- 

 der inner limb, bearing at its tip a long and a short filament, 

 both flattened and blade-like ; middle filament close to the three 

 on outer aspect of lobe, all flattened and blade-like. Inner 

 division of the lobe of side-piece with the two arms well sepa- 

 rated, the outer long, the inner very short, each bearing a long 

 filament with flattened and pointed tip. Second plate of the 

 unci furcate, the stem short and rather thick, without third 

 spine ; inner limb elliptical, erect ; outer limb at right angles, 

 flattened, appearing spine-like in side view. Tip of first plate 

 on a level with the outer limb of second ; a sharp angle at the 

 middle just above the excavation where the broad articulated 

 plate is inserted. Basal hooks long, well curled. Basal ap- 

 pendages small, fan-shaped, contiguous, tubercular, each with 

 about 10 setae. The pecten on the harpes is fine and delicate. 



Costa Rica and Panama, not received from other localities. 



