134 



NEW YORK STATE MUSEUM 



yellow, the extreme tips of the tibiae and the apical half of each 

 tarsus black. Length 3.3 mm. Wing, 3.1 mm. 



The species resembles T. nervosus (European), but the 

 yellow base of the antennae and the white halteres distinguish it 

 with certainty. ' Shining pitchy black, palpi fuscous; face and 

 front sordidly ferruginous; antennae fuscous, the scapus and the 

 basal joints of the flagellum yellow. Pleura ferruginous; pectus 

 yellow. The fore legs pitchy black, the coxae and basal third of 

 each femur yellow; the middle legs yellow, the bases of their 

 tibiae infuscated, the tips of the tibiae and the part of the tarsus 

 from the tip of the metatarsus fuscous black; the hind legs yellow, 

 the tip of tibia and the part of tarsus beyond the tip of the second 

 joint fuscous black. Halteres yellowish white. Wings cinereous 

 hyaline, bare, the more delicate veins pale fuscous, the heavier 

 ones dark fuscous. New York. 



To the above description may be added that in a newly 

 emerged specimen the dorsum of the thorax is distinctly striped, 

 with the space between the .stripes yellowish. The fourth tarsal 

 joint is longer than the fifth, and but little broadened. Legs 

 sparsely haired. Fore tibia about twice as long as its meta- 

 tarsus. Wing venation as figured. One bred specimen. Ithaca, 

 N. Y. 



13. Procladius scapularis Loew 

 1866 T a n y p u s Lw. Berl. Ent. Zeit. p.2 



(PI.27, fig.4) 



Male. The abdomen white and black annulate, the fore tibiae 

 and the fore metatarsi white excepting their tips. 



Female. Abdomen wholly black, the fore legs excepting the 

 bases of the femora black. Length 3 to 3.7 mm. Wings, 2.5 to 

 2.7 mm. 



Male and female. Black, the humeri and the upper half of the 

 pleura white, the legs white and black variegated, the wings bare, 

 with a central black spot covering the crossveins, the fourth tarsal 

 joint short, obcordate. 



Head white, the disk of the occiput pitchy black; antennae of 

 the female short, fuscous; of the male antennae the first joint 

 is black, the flagellum subfuscous. The thorax of the male is 

 black and opaque, that of the female is pitchy black and sub- 

 shiny; the humeri, the collar, and the upper half of the pleura 

 white in both sexes. Scutellum same color as the thorax. Abdo- 

 men of the male black, excepting the whole of the first two seg- 

 ments, the posterior margin of the third, the posterior four-fifths 

 of the fourth, and the posterior one-half of the sixth, which are 



