272 MOSQUITOES OF NORTH AMERICA 



outer row of cilia from a collar; a row of rounded transverse prominences on 

 outer margin bearing hair-tufts; dentition of four teeth on a process, the first 

 longest; a spine before, a small tooth and a large trifid one at base, a long, 

 smooth filament and a row of feathered hairs within; process below slightly 

 curred, obscurely furcate, with a longitudinal and a transverse row of hairs; 

 basal angle small, the row of hairs within with enlarged dentate bases ; a row of 

 long hairs at base. Maxilla elongate, vnth conical tip, divided by a suture; 

 inner half with a row of long hairs on margin, some of the basal ones feathered, 

 two rows of cilia within; a row of long hairs at tip, running down along the 

 suture ; outer half with two filaments near the middle, a spine on other side and 

 small granules on margin. Palpus small, with four rather long, irregular digits. 

 Thorax rounded, wider than long; abdomen moderate, the anterior segments 

 shorter, lateral hairs multiple on first segment, double on second to sixth ; skin 

 pUose; tracheae rather broad. Air-tube long, slightly tapered, five times as long 

 as wide ; pecten reaching basal two-fifths ; single teeth broad, with five to seven 

 branches ; three two-haired tufts, the middle one placed laterally. Lateral comb 

 of eighth segment of many spines in a large triangular patch; single spine 

 widened outwardly, with an apical fringe of spinules. Anal segment longer than 

 wide, ringed by the plate, which has a row of small spines on the posterior 

 margin; dorsal tuft a group of long hairs on each side; a single lateral hair; 

 ventral brush well developed, confined to the barred area. Anal gills long, twice 

 as long as the segment, gradually tapered. 



The larvae live in ground-pools of dirty water. Mr. Busck got them in a stag- 

 nant ditch containing horse-manure. 



Island of Trinidad, West Indies. 



Montserrat (Trinidad), larvae in a ditch, June 27, 1905 (A. Busck). 



The specimens originally referred here from Dominica, Mexico, and Costa 

 Eica have, upon further study of the material, been transferred to Culex vindir 

 cator, Culex proclamator, and Culex juiilator, respectively. The specimens 

 which we determined for Mr. Busck, from Panama, as this species, we have 

 lately transferred to Culex revelator. We have now before us but the single 

 female type from Trinidad. These species are all closely allied, with but slight 

 differences both as adults and larvs. They separate well, however, by our tables. 



CULEX JU6ILAT0K Dyar & Knab. 



Culex inquisitor Byar & Knab (in part), Joum. N. Y. Bnt. See., xiv, 211, 1906. 

 Culex juhilator Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 201, 1907. 

 Culex juhilator Busck, Smiths. Misc. Colls., quart, iss.. Hi, 68, 1908. 

 Culex juhilator Theobald, Mon. Culic, v, 614, 1910. 



Obioikai, Description of CntEX jtjbilatob: 



?. — ^Proboscis rather long and slender, not swollen towards the apex, clothed with 

 black scales, not ringed; palpi short, black scaled; occiput clothed with narrow 

 yellowish scales, margin of the eyes narrowly white, the upright forked scales brown 

 with yellow luster; mesonotum light brown with golden luster; pleura pale gray; 

 abdomen subcylindrical, truncate at apex, black scaled above with faint bronzy luster, 

 segments 2 to 7 with a median basal triangular spot of white scales, the spots on the 

 posterior segments smaller, eighth segment with a white basal band, which is 

 laterally enlarged, a row of white lateral spots, ventral area white scaled; legs black 

 with bronzy luster, the tarsi with very narrow yellowish-white rings at both ends of 

 the joints, last joint of hind tarsi narrowly whitish tipped; claws simple; scales of 

 the wing-veins brown, long and narrow. Length 3 mm. 



cJ'. — ^Palpl considerably longer than the proboscis, the apical half with numerous 

 long brown hairs, wholly brown scaled, without rings; antennae strongly plumose; 

 abdomen slender, depressed, dark-scaled above with faint bronzy luster, the segments 

 with sllvery-whlte basal bands which are produced triangularly in the middle, eighth 

 segment entirely white scaled. Length 3.6 mm. 



