CULEX DECLAKATOE 269 



hairs of different lengths on each side ; ventral brush confined by the chitinous 

 ring. Anal gills longer than the segment, rather bluntly tipped, equal. 



The larvae live in the water in hollow trees. 



Island of Trinidad, British West Indies. 



Sangre Grande, bred from larvae in hollow trees, September, 1906 (F. W. 

 Urich). 



CULEX DECLARATOR Dyar & Knab. 

 Oulex declarator Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 206, 211, 1906. 

 Oeiqinal Descbiption of Culex declabatoe : 



Antennal tuft placed well outward, the member all dark. Head hairs in fours; 

 body pilose; lateral hairs in twos after the second abdominal segment. Air tube 

 five times as long as wide, the pecten reaching one-third. Lateral comb of the eighth 

 segment large; anal gills short and blunt. 



Collected by Mr. Busck in a lagoon pool far from habitation on the south coast of 

 Trinidad. The adults were named " Culex pipiens L." by Mr. Coquillett. 



The following is an abstract of the table : 



1. Antennae with the tuft outwardly placed, the part beyond slender. . 5 

 5. Air tube four times as long as wide or over 7 



7. Anal appendages four, normal 8 



8. Air tube with three paired tufts posteriorly outwardly, the middle 



one moved laterad out of line, usually situated near or not 

 much beyond the middle of the tube 9 



9. Body spicular or pilose 10 



10. Dislocated tuft of tube not, or scarcely beyond the middle 11 



11. Anal processes broad and bluntly rounded 12 



12. Air tube gently tapered uniformly; body pilose declarator 



Descetption of Male and Labva op CtriEx declabatoe (Female Unknown) : 



Male. — Palpi long, slender, broken in the unique specimen. Proboscis broken. 

 Antennae rather short, plumose, the two long terminal segments clothed with 

 rather long cilia, the others shortened, with black rings at the insertions of the 

 hair-whorls; hairs of whorls long, moderately abundant, blackish. Occiput 

 clothed with narrow, curved brown scales, scattered, dark-brown, erect, forked 

 scales on vertex, whitish recumbent ones on sides, ocular margin white scaled. 



Mesonotum deep brown, with coppery-brown, narrow, curved scales and two 

 very narrow, naked dorsal striae; scales around ante-scutellar space paler; rows 

 of long, coarse, black, sparse setae and groups of similar setae along the sides, 

 particularly over roots of wings. Scutellum clothed with pale, shining, narrow, 

 curved scales and with a group of long setae on each lobe. Postnotum brownish 

 with a prominent, well-defined median carina, nude. Pleurae blue green, with a 

 few scattered white scales ; coxae luteous. 



Abdomen subcylindrical, depressed, above blackish brown, the segments ex- 

 cept the first with white basal bands occupying about one-fourth of the segments ; 

 on the seventh segment the band is very narrow in the middle but greatly 

 broadened at the sides and extends down about two-thirds of the lateral margins ; 

 eighth segment short, more than half white sealed; ventral surface clothed 

 with dirty-white scales; lateral ciliation of long brown hairs. 



Wings rather broad, with narrow brown scales along the veins, those toward 

 the apices slightly broadened and denser; petiole of second marginal cell more 

 than half as long as its cell, that of second posterior cell shorter than its cell ; 

 basal cross-vein more than its own length behind anterior cross-vein. Halteres 

 pale, large, apices of knobs white scaled. 



Legs brown, with a strong bronzy luster, particularly on under surface; 

 femora pale beneath nearly to apex, tibiae darker towards apex, extreme tips pale ; 

 hind legs, with apices of first, second, and third tarsal segments pale and bases 

 of all the tarsal segments narrowly pale ringed; white marks obsolete on fore 

 and mid legs. Claw formula, 1.1-1.1-0.0. 



