MAY FLIES AND MIDGES OF NEW YORK 129 



median line. Pleura variegated reddish and fuscous. Abdomen 

 pallid, each segment with a black or fuscous basal fascia, wider 

 on the more posterior segments. The legs covered with whitish 

 or pale yellow pile ; the extreme tips of the tibiae are black ; the 

 first pair of tarsi are black from the tip of the metatarsus on- 

 wards, the base, however, of the second joint in the male being 

 pallid; the second and third pairs have pale first and second 

 joints excepting the extreme tips ; the remaining joints are black, 

 though in the male the base of the third joint is pale. The fourth 

 tarsal joints are all simple and sublinear. Halteres white. Wings 

 bare, suibhyaline, crossveins fuscous or black. Washington D. C. 

 (Loew.) Fork of cubitus petiolate. (S. Henshaw, in litt.) 



5. Procladius thoracicns Loew. 

 1866 T a n y p u s Lw. Berl. Ent Zeit 4 



Male. Reddish, shining, flagellum of the antenna, scutellum, 

 and abdomen, excepting the base of each segment, black fuscous, 

 the legs yellowish, the tip of each tibia and each tarsus, except- 

 ing the base, black, the fourth joint of the latter short, that of 

 the middle and hind pairs obcordate, the wings bare, subhyaline, 

 the crossveins fuscous. Length 4.5 mm. Wing 3 mm. 



Head yellowish red, the first joint of the antenna the same 

 color or dusky red, the flagellum and its hairs fuscous. Thorax 

 reddish, shining, the color of the humeri verging upon yellow, 

 the scutellum blackish fuscous, the metanotum reddish or sub- 

 fuscous. Each segment of the abdomen with fuscous black un- 

 evenly distributed, so that often they are wholly black excepting 

 the basal joints. The legs are pale yellow, the extreme tips of 

 the fore femora and of all the tibiae are black, the fore tarsi 

 have the last four joints and the apical third of the first joint 

 black; the middle and hind tarsi from the tip of the second 

 joint are black; all the fourth tarsal joints are short, those of 

 the second and third pair of legs are obcordate. Halteres white. 

 Wings bare, subhyaline, crossveins fuscous. Washington, D. C. 

 (Loew.) Fork of cubitus petiolate. (S. Henshaw, in litt.) 



6. Procladius concinnus Coquillett 

 1895 T a n y p u s Coq. Proc. Acad. Nat Sc. Phil. 308 



Light yellow, three vittae on the thorax reddish yellow, the 

 middle one bordered each side with black, the lateral ones chang, 

 ing into black posteriorly; a dot at each front angle of the 

 scutellum, middle of metanotum, a fascia at base of each ab- 

 dominal segment except the first, apices of tibiae, of metatarsi, 

 of the second joint of middle and hind tarsi, the whole of the 

 remaining joints and the last four of the front tarsi black, 



