AMERICAN DIPTEKA. 295 



longitudinal vein thick, reaching the margin a little before the extreme apex of 

 the wing, its anterior branch ascending straight to the margin ; the fourth vein 

 incomplete. 



Female.^The apex of the wing broader than in the male, the third longitudi- 

 nal vein extending further past the apex of the wing; the discal cell a little 

 larger; the legs with short pile, but the posterior femora and tibiae with scales 

 on both sides. 3 ram. or larger. 



District of Columbia (Osten Sacken). 



^v Eiupis distati!i« Loew (Fig. 127). 

 Cent. viii. 54. 



Female. — Black. Antennae black, slender, rather long. Proboscis black, 

 labrum testaceous towards the apex, reaching the middle coxae, labellae linear. 

 Thorax blackish gray, opaque, provided with faint black vittae and sparse black 

 pile; the pile in front of the halteres long, black. Abdomen purer black, shin- 

 ing, with very short black pile. Legs slender, almost black ; anterior tibiae, ex- 

 cept the base, and the, middle and hind femora on both sides peunate, the middle 

 and hind tibiae above likewise pennate, below ciliate with ordinary, very short 

 hairs. Halteres dusky yellow, almost fuscous. Wings blackish, the costal and 

 marginal cells darker, veins black ; the third longitudinal vein thicker than the 

 others, far distant from the costa, to which it sends an almost perpendicular 

 branch, so that the second submarginal cell forms an equilateral triangle; discal 

 cell rather large; the fourth longitudinal becoming more slender from the base 

 of the discal cell, and slightly retiexed towards the tip. 3.3 mm. 



Georgia (Poeppig, Berlin Museum), Numerous specimens from 

 Connecticut and Louisiana. 



The male has a small gaping hypopygiura which is iiigher than 

 the abdomen, central filament slender, bowed, the ti{) concealed, 

 middle lamellae rather large, the right one terminated by a peculiar 

 downward-hanging membranous appendage, upper lamellae inflexed. 

 Legs not pennate, but sparsely bristly, the bristles becoming long on 

 the outer edge of the hind tibiae, middle metatarsi as long as their 

 tibife, tarsi not spinose below. 



Einpis dolorosa Wheeler et Melander (Fig. 128). 

 Biol. Cent. Am., Dipt. Suppl., Nov., 1901, p. 370. 



Male. — Black. Eyes closely contiguous, with an acute angular emargination 

 on each side of the face above. Face shining black. Antennae black, about as 

 long as the head ; second joint more than half the length of the first ; third joint 

 longer than the first two together, narrowed on the distal half or more; style 

 slender, about half as long as the third joint. Proboscis black, as long as the 

 head and thorax together. Mesonotum very slightly dusted with white, shin- 

 ing; hair and bristles not abundant, black. Pleurae whitish-poUinose. Four 

 anterior femora and the middle tibiae and tarsi luteous-yellow ; front tibiae and 

 tarsi and the hind legs darker brown or blackish ; metatarsi not dilated ; legs 

 provided with rather sparse hairs. Wings somewhat broad, varying from brown- 



TEANS. AM. ENT. SOC, XXVWI. AUGUST, 1902 



