TNSKCUTOR INSCITI.T^ MKNSTRUUS 77 



11. Basal lobe broadly capitate with many setae 12 



Basal lobe narrowly capitate with few setae 13 



13. Stem of harpago short, filament longer than it.. dupreei Coquillett 

 Stem of harpago long, filament shorter than \t. .serratus Theobald 



1?>. Harpago long, sinuate ; filament sickle-shaped, 



tormentor Dyar and Knab' 

 Harpago moderate ; filament calla-lily-shaped 14 



14. Filament of harpago broadly oval with very short recurved tip, 



pertinax Grabham 

 Filament of harpago narrowly oval with long recurved tip, 



polyagrus Dyar* 



15. Filament of harpago with retrose spine scapularis Rondani, 



infiruiatiis Dyar and Knab, euplocamus Dyar and Knab, (condo- 

 lescens Dyar and Knab) ; tortilis Theobald, plutocraticus Dyar 

 and Knab, (balteatus Dyar and Knab), (bracteatus Coquillett) ; 

 trivittatus Coquillett, cuncatus Dyar and Knab, {angustivittatus 

 Dyar and Knab), (obturbator Dyar and Knab). 

 Filament of harpago not so modified 16 



16. A tuft of similar spines accompanying the spine of basal lobe... 17 

 Spine of basal lobe without accompanying similar spines 23 



' Aedes tormentor Dyar and Knab. 



Side piece long, slender; apical lobe prominent, narrowly conical, setose; 

 basal lobe expanded, long, narrow, setose on the outer third; a single spine in- 

 serted at basal third. Harpago long, reaching to middle of side piece, slenderly 

 columnar, flexuous; filament rather small, broadly sickle-shaped. 



Bred specimens sent by Dr. W. V. King, collected at New Orleans, Louis- 

 iana, September 15, 1914. 



' Aedes polyagrus, new species. 



Apical lobe of side piece conical, straight on inner side, sparsely setose; 

 basal lobe elongate, with a capitate rounded setose tip, the basal part bare; a 

 stout spine inserted at the middle of the margin. Harpago with long, slender 

 stem, reaching nearly to middle of the side piece; filament elliptical, with long, 

 recurved tip, the base rounded and projecting and marked with lines. Other 

 structures normal; basal appendages short, each with five setK. 



Adult male, Taboga Island, Panama, July 1, 1907 (A. Busck). The specimen 

 is denuded and moldy, no trace of the thoracic vestiture remaining. Probably 

 there was a narrow median silvery stripe as in pertinax. Legs black. 



Type, male, No. 21551, U. S. Nat. Mus. 



The original larval skin was preserved by Mr. Busck, but the bottle was not 

 examined at the time and has become dried out during the ten years that it was 

 sitting on the shelf. Therefore some of the finer characters are lost. It falls 

 in the table with serratus, rather than with pertinax, with which latter the geni- 

 talia would place it. 



Air tube short, conical, hardly twice as long as wide; pecten of 11 evenly 

 spaced teeth, followed by a 7-haired tuft well beyond the pecten. Lateral comb 

 of the eighth segment of about 10 smooth thorn-shaped scales in a nearly straight 

 row. Anal segment ringed by the plate. Anal gills apparently moderate. Head 



