Oct., 1915 Bulletin of the Brooklyn Entomological Society 87 



Phorticoides flinti, sp. n. 



Male. Black-brown subopaque. Head subopaque ; f rons covered with 

 gray pruinescence; orbits yellowish, especially anteriorly; face and cheeks 

 yellow; antennae brown, third joint whitish yellow; labrum glossy brown; 

 proboscis and palpi dusky yellow. Thorax subopaque, dorsum with dense 

 gray pruinescence ; disc with seven vittae, median one broad and con- 

 spicuous, its anterior extremity narrowed ; submedian pair slender and 

 poorly defined ; submarginal pair slender, extending from posterior mar- 

 gin to middle of disc; marginal pair as broad as median vitta; pleurae 

 yellowish, with two broad longitudinal vittae, one on upper margin and 

 the other over upper portion of sterno-pleurae ; scutellum brownish, disc 

 with grayish pruinescence, apex yellowish ; postnotum glossy black. Ab- 

 domen black, glossy; anterior margins of segments with a subtriangular 

 silvery pruinose spot on the lateral angles. Legs pale yellow ; fore coxae 

 with a brown spot on anterior surfaces ; femora and tibiae biannulate, one 

 subbasal, the other subapical; apical joint of all tarsi brown. Wings clear, 

 veins yellow. Halteres pale yellow. 



Frons, viewed from above, over one half the head width; ocellar region 

 slightly elevated ; ocelli in an equilateral triangle, distance between outer 

 margin of posterior ocelli and eye margin about twice as great as distance 

 between outer margins of those ocelli ; postvertical bristles widely diver- 

 gent, each about half as long as outer vertical one, the latter scarcely more 

 than half as long as inner vertical ; the single orbital bristle slightly longer 

 than outer vertical one, located about midway from base of latter to base 

 of antennae; orbits with a fe,w weak setulae anterior to the bristle; center 

 stripe bare ; ocellar bristles strong, slightly divergent, subporrect ; face 

 concave, median carina weak ; viewed from in front the eyes are decidedly 

 convergent below; antennae rather large; second joint with a few dorsal 

 setulae; third joint elongate, its length about over 1.5 its breadth, upper 

 margin rather acute at apex, lower margin rounded apically; arista long 

 plumose, situated near base on dorsum ; mouth margin slightly protuber- 

 ant; cheek narrow, about one sixth as high as eye, marginal bristles rather 

 numerous ; eye twice as high as long, surface with sparse hairs ; labrum 

 protuberant ; proboscis fleshy ; palpi normal. Mesonotum with two pairs 

 of dorso-central bristles; disc with rather sparse setulae; prescutellar bris- 

 tles present ; mesopleura without bristles ; sternopleura with two bristles 

 on upper margin ; scutellum with four bristles, the basal pair weak. Hy- 

 popygium inconspicuous. Wing rather large ; distance from humeral vein 

 to end of first about two thirds as great as next division; costa not broken 

 anywhere ; second vein arcuate, bent towards third at its apex ; fourth 

 vein very slightly divergent from third at its apex, its apical portion about 

 two and a half times as long as its preapical, the latter nearly twice as 

 long as outer cross vein and slightly shorter than last section of fifth ; 

 inner cross vein very slightly before apex of first, costa without spines. 



Length, 2 mm. 



