340 A Monograph of Culicidae. 



CULICADA ONONDAGENSIS. Felt (1904). 



Culex onondagensis. Felt. 



Bull. 79, Ent. 22, N. York St. Mus., p. 304, PI. V., fig. 2, and PI. 17, fig. 3 



(1904), Felt. 



Head with yellowish and silvery scales. Thorax with golden 

 yellow scales, grey posteriorly. Abdomen dark brown with 

 broad median and lateral stripes of silvery grey, basal pale 

 bands, apex mostly silvery white. Legs with speckled femora 

 and tibiae, legs with apical banding, fifth of hind pair white. 

 Wings with mottled scales. 



The following is Felt's original description : — 



" Antennae dark brown, sparsely clothed with fine whitish hairs, with 

 sparse basal whorls of dark brown hairs on the segments, basal one brown t 

 clothed internally with yellowish scales. Palpi short, dark brown, with 

 a few silvery white scales towards the apex. Apical portion of proboscis 

 dark brown, basal part lighter with a few whitish scales. Occiput rather 

 thickly clothed with yellowish and silvery scales, with a few black ones 

 interspersed. Prothorax ornamented with a thick covering of golden 

 yellowish scales, becoming greyish posteriorly. Scutellum similarly 

 clothed and with no long setae. Halteres capitate, basal and apical 

 portions fuscous. Pleura brownish, clothed with rather thick irregular 

 patches of whitish scales. Abdomen dark brown, with a distinct broad 

 median and somewhat broken lateral stripes of silvery grey scales slightly 

 tinged with yellow. Basal bands of first and second abdominal segments 

 somewhat indistinct, those of the third and fourth well marked, the 

 dorsum of the remaining segments nearly covered with silvery white 

 scales. Ventral surface sparsety covered with silvery grey and yellowish 

 scales. Femora and tibiae mostly yellowish with somewhat brown scales,, 

 which are flecked where thick with white. Fore and mid tarsi brown 

 with apical white rings, hind tarsi with the apex and the extremities of 

 the segments distinctly ringed, except the distal of the fourth, fifth snow 

 white. Claws unidentate. Wings hyaline, clothed with intermixed brown,, 

 straw yellow and colourless scales, the narrow long ones mostly trans- 

 parent. Petioles of the first and second fork-cells about three-fourths 

 the length of their respective cells. 



" Habitat. — Lake Onondaga, Syracuse, U.S.A. 



" Time of capture. — September (19th)." 



Observations. — This is evidently a very distinct species which 

 Felt now places in his genus Culicada. 



