410 MOSQUITOES OF NORTH AMEEICA 



ish scaled, a broad white band at base of each segment; apices of segments with 

 rather coarse hairs ; apex of abdomen, particularly beneath, densely hairy. 



Wings moderate, hyaline ; petiole of second marginal cell one-fourth as long 

 as its cell, that of second posterior cell shorter than its cell; basal cross-vein 

 distant nearly twice its length from anterior cross- vein ; scales of veins brown, 

 with a blue reflection along the costa, outstanding scales ovate outwardly on 

 second to fourth veins and forks of fifth. Halteres whitish, with blackish knobs. 



Legs moderate ; vestiture black, with a blue and bronzy reflection on tibisB and 

 tarsi; femora whitish beneath except at tips. Claw formula, 0.0-0.0-0.0. 



Length: Body about 2.5 mm.; wing 3.5 mm. 



Male. — Proboscis long, straight, slender, gradually enlarged towards apex, 

 black scaled. Palpi exceeding the proboscis by nearly the length of the last two 

 joints, which, with the end of the long joint, are slender, and sparsely hairy; 

 vestiture entirely dark. Antennae plumose; last two joints long and slender, 

 rugose, pilose, black, the others short, whitish, with black rings at insertions of 

 hair-whorls. Coloration similar to the female. Abdomen «k>ngate, expand- 

 ing apicaUy, tip much enlarged by genitalia; lateral ciliation coarse and 

 rather short, brown, but not forming a distinct lateral fringe. Wings narrower 

 than in the female, ihe stems of the fork-cells longer, vestiture sparser. Claw 

 formula, 1.0-1.0-0.0. 



Length : Body about 3 mm. ; wing 3.5 mm. 



Genitalia (plate 10, fig. 71) : Side-pieoes as long as wide, subspherical, with 

 excavated base; lateral prominence divided, outer part slender, bearing an 

 irregularly expanded leaf -like appendage, an expanded filament and two setae ; 

 inner part divided, each portion bearing a filament with hooked tip, lower branch 

 very short and sessile. Clasp-filament thick, contracted mesiaUy, tip thickened, 

 hirsute without and pointed at tip with a stout claw and a spine in addition. 

 Inner branch of harpes long, slender, with comb-Uke tip. Harpagones divided 

 into several plates, one of them slender with expanded and excavated tip. Basal 

 appendages small, irregularly elliptical, setose. Penultimate segment of abdo- 

 men excavated below with a narrow thickened rim and hairy lobe on either side. 



Life history and habits unknown. 



Southern Mississippi Valley. 



Agricultural College, Mississippi, August 18, 1905 (W. V. Reed). 



CULEX CONSPIRATOR Dyar & Knab. 



Culex conspirator Dyar & Knab, Journ. N. Y. Bnt. Soc, xiv, 207, 217, 1906. 

 Gulex corispirator Busck, Smiths. Misc. Colls., quart, iss., lii, 68, 1908. 



Obiqinal Descbiption of CtrtEX conspibatoe: 



As in the preceding species, but differentiated by the characters given in the table. 



Collected by the junior author at Almoloya, Oaxaca, Mexico, in a large pot hole full 

 of clear water and in a shallow pool frequented by cattle at Las Loras near I*unt- 

 arenas, Costa Rica. The specimens were named " MeUinoconion atratus Theob." 



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 four to ten paired tufts along the posterior line in a 



straight row, none displaced, or the hairs obsolete or absent. 18 



18. Air tube without a crown of spikes, smooth throughout 19 



19. Air tube with long well-deflned tufts 20 



20. Body spicular-pilose 21 



21. Five tufts on tube with the basal one very long, the rest progress- 



ively shorter; abdominal hairs in threes on segments 3 to 6. 23 



23. Upper head hair single; tufts of tube all shorter than half its 



length 24 



24. Pecten of tube dense and fine, not as long as diameter of tube 25 



25. Dorsal hairs small; antennae pale at base conspirator 



