452 NEW YORK STATE MUSEUM 



forms are consequently found much later in the season. This 

 larva is a very difficult one to rear. Abraded adults present a 

 strong resemblance to Culicada subcantans and C. 

 abfitchii. Males of this species are easily separated from the 

 two last named, since the basal clasp segments bear a conical tuber- 

 culate process thickly set with numerous long, stout setae, a struc- 

 ture practically absent in Culicada abfitchii, and one that 

 is represented only by a rudimentary lobe and a conspicious slightly 

 curved, chitinous spine in Culicada subcantans. 



Female. Proboscis about two thirds the length of the body, 

 dark brown, rather thickly flecked almost its entire length with 

 silvery white scales. Palpi dark brown, flecked with white scales, 

 particularly at the base of the segments. Basal segment of anten- 

 nae reddish brown with a minute internal patch of white scales; 

 other segments dark brown with sparse basal whorls of long, dark 

 setae and a scanty clothing of fine, yellowish hairs. Occiput 

 with a conspicuous median group of hairs at the juncture of the 

 eyes and with a broad median stripe of silvery white scales, and 

 somewhat indistinct patches of brown scales. Numerous erect, 

 white and black, fork scales posteriorly. Laterally the posterior 

 portion of the head is thickly clothed with yellowish white scales 

 inclosing a small dark patch. Mesonotum with broad, submedian 

 vittae of thick, dark brown scales becoming grayish and obsolete 

 posteriorly. Sublaterally there is a somewhat irregular area of 

 silvery yellow scales, the central posterior portion shaded with 

 dark brown scales and on the lateral anterior angles there are 

 conspicuous patches of dark brown scales. Pleura rather sparsely 

 and irregularly clothed with silvery white scales. Scutellum 

 sparsely clothed with yellowish white scales and with a conspic- 

 uous median and smaller lateral groups of long, golden yellow 

 setae; postscutellum smooth, light brown. Halteres with the 

 apical portion slightly fuscous, basal part yellowish transparent. 

 Abdomen dark brown with distinct basal bands, slightly prolonged 

 mesially, very narrow laterall}^ or sublaterally, in some specimens 

 distinctly prolonged laterally, of silvery white scales, those of the 

 sixth and seventh segments occupying half and three fourths 

 respectively, of the dorsal area; eighth segment nearly naked, the 

 tip of the terminal lobes dark brown. Ventral surface rather 

 thickly clothed with yellowish white scales except for a more or less 

 obsolete broken median black line and a brown patch at the lateral 

 posterior angles of each segment. Coxae pale yellowish, sparsely 

 clothed with whitish scales. Femora largely light yellow with 

 more or less irregular flecking of dark brown scales. Tibiae much 

 darker than the femora. Apex brown, articulation yellow. Tarsi 

 dark brown, those of the posterior legs with broad distinct basal 

 bands on the second, third and fourth segments, which are nar- 

 rower and nearly uniform on the mid and fore tarsi. Basal bands 

 of the first tarsal segments illy defined. Claws unidentate, con- 

 cave surface of teeth finely serrate. Wings with the costa thickly 



