532 MOSQUITOES OF NORTH AMERICA 



Okiginal Description of Culex contebbens: 



Foem. Fusca; proboscis et palpi fulva, apice nigra; antennae nigrae, basi fulvae; 

 thorax vitta dorsali testacea; pectus testaceum; pedes fulvi, robusti, femoribus 

 tibiisgue apice nigricantibris, tarsis nigricantibus albido fasciatis; alae subcinereae 

 apud costam fuscescentes. 



Brown. Proboscis and palpi tawny, with black tips. Proboscis stout, straight, 

 pubescent, as long as the head and the thorax. Antennae black, tawny at the base. 

 Thorax with a testaceous dorsal stripe. Pectus testaceous. Abdomen wanting. Legs 

 tawny, pubescent, very stout; tips of the femora and of the tibise blackish; tarsi 

 blackish, with whitish bands. Wings grayish, brownish towards the costa; veins 

 brown. Length of the body 4 ? lines; of the wings 6 lines. 



United States. 



Original Description of Culex perterrens : 



Foem. Fusca, sat valida: proboscis testacea, apice fusca: pectus tesaceum; abdo- 

 men purpurascens, fasciis ventregue testaceis; pedes testacei, validi, pubescentes, 

 femoribus tibiisgue apice tarsisguc fuscis; alae cinereae, venis nigricantibus sub- 

 ciliatis; halter es testacei. 



Brown, rather stout. Proboscis testaceous, long, brown towards the tip. Antennae 

 brown, very little shorter than the proboscis. Pectus testaceous. Abdomen pur- 

 plish, with a testaceous band on the fore border of each segment; under side tes- 

 taceous. Legs testaceous, stout, pubescent; femora and tibiae brown towards the 

 tips; tarsi brown. Wings gray; veins blackish, slightly ciliated. Halteres tes- 

 taceous. Length of the body 4 lines; of the wings 6 lines. 



South America. 



Description of Female, Male, Larva, Pupa, and Egg of Psorophora ciliata: 



Female. Proboscis moderate, uniform, not tapered outwardly, the labellae 

 elongate, rounded triangular; pale brown, clothed with suberect, moderate, flat 

 scales mostly blackish with a slight iridescent reflection, not concealing brown 

 membrane ; setos rather numerous, black, short, not much longer than the scales. 

 Palpi one- third as long as proboscis, rather densely clothed with suberect black 

 scales and black setaa longer than those on proboscis. Antennre slender; tori 

 subspherical, yellowish bro\vTi, with a few hairs and scales within, succeeding, 

 segments subequal, blackish, pilose, the second joint yellowish at base and bear- 

 ing a few black scales; hairs of whorls sparse, black, not long. Clypeus promi- 

 nent, roundedly subtruncate, nearly twice as long as wide, nude, shining, pale 

 brown. Eyes black, contiguous at vertex. Occiput broad, well exposed, brown, 

 rather sparsely covered with broad, curved white scales, leaving a narrow bare 

 spa<;e along median suture, some black ones intermixed at the sides; a group of 

 yellow setse on vertex ; numerous rather short dark-brown bristles, densest along 

 margins of eyes but also distributed over entire surface. 



Prothoracic lobes elliptical, small but prominent, remote, brown, rather 

 densely covered with moderate black bristles. Mesonotum high and prominent 

 before, smoothly arcuate, dark brown ; a median dorsal stripe of dense, golden- 

 yellow, narrow, curved scales, even, shai-ply limited, and extending over the 

 ante-FCutellar space nearly to scutellum, intermixed \vith short black bristles; 

 on each side of this a bare stripe, each of about equal width to median stripe ; 

 bordering the bare stripes outwardly a narrow line of golden-yellow scales, again 

 bordered outwardly by a narrow line of dense, black, narrow, curved scales 

 mixed with black bristles ; outwardly from these stripes a broad, irregular area 

 of broad white scales extending to root of wing; ante-scutellar space white 

 scaled and invaded by the median golden stripe ; a broad bare stripe on each 

 side of ante-scutellar space; humeri bare; sides of disk with short black bristles 

 and towards roots of wings with pale-brown bristles. Scutellum trilobate, with 

 some narrow, curved white scales, golden ones medianly, each lobe with numer- 

 ous brown and yellowish bristles. Postnotum roundedly prominent, nude, 

 brown, with a triangular blackish basal area. Pleurae sparsely clothed with flat 

 white scales ; coxae shining brown with black scales and short dark bristles. 



