374 Annals of the Carnegie Museum. 



yellow, the upper concave occiput blackish with the orbits narrowly yellow; face 

 light yellowish white or yellowish gray, with a very slight, transversely convex 

 carina; cheeks extremely narrow, hardly perceptible; (antennae are missing). The 

 mouthparts were demolished and not recognizable, but one of the palpi was still 

 loosely attached and before it was lost together with the rest of the mouthparts, 

 the writer made the following note: "palpi black, apparently cylindrical, clothed 

 with short hairs, not conspicuous in size." 



Mesonotum and scutellum dark brown-red, almost opaque, the former with the 

 minute setulas- black, the latter strongly convex. Under side of scutellum and 

 metathorax reddish yellow, shining, with the sides of the latter at base of wings 

 fuscous; the pleura lighter than the mesonotum, but not conspicuously so; legs 

 yellow with a brownish tint; the middle and posterior tibiae with a minute pre-apical 

 setula (halteres are missing). 



Abdomen black, slightly shining on basal two-thirds, very shining on the last 

 segments (may be the whole abdomen is very shining in well-preserved specimens); 

 the small first segment and venter brownish yellow; sides of second segment dark 

 honey-brown. 



Wings quite distinctly pointed, dark brown on anterior half, fuscous on the pos- 

 terior half and with the posterior cross-vein broadly and conspicuously bordered 

 with deep brown, which color extends into the first posterior cell and below widens 

 a little along both sides of fifth vein, reaching its apex; the dark brown and the 

 fuscous hyaline is limited by the fourth vein and the brown encroaches upon the 

 discal cell along the first section of fourth vein; there is a fuscous hyaline, transverse 

 dash from the base of the first posterior cell, which dash, gTadually narrowed, 

 reaches the marginal cell slightly beyond the second vein; apex of the submarginal 

 cell along the costa also fuscous hyaline; first posterior cell along the fourth vein 

 and at its apex narrowly fuscous hyaline, except the deep brown at posterior cross- 

 vein; second posterior cell the most diluted space of the wing and the darkest brown 

 of the wing surrounds the posterior cross-vein. 



The third longitudinal vein ends at the apex of the pointed wing; second vein in 

 its apical two-thirds straight; the distance between the tips of second and third 

 veins hardly two and one-third times the distance between the tips of third and 

 fourth veins, which are parallel in their apical course; the first posterior cell is only 

 very slightly wider at its middle than at its apex; the distance between the anterior 

 and posterior cross-veins is hardly more than one-third longer than the first section 

 of third vein; posterior cross- vein slightly longer than the ultimate section of fifth 

 vein; the anal vein does not stop abruptly, but continues as a curved fold nearer 

 the posterior margin; veins blackish brown, with the thinned apical portion of fourth 

 vein diluted. 



The fronto-orbital, vertical, and ocellar pair of bristles of almost equal size, with 

 the upper reclinate fronto-orbital and the outer vertical bristles a little more robust; 

 the upper reclinate situated slightly nearer to the inner vertical than to the lower 

 reclinate and a little higher up than the lower ocellus; an upper pair of setulac of the 

 occipito-orbital fringe a little larger and diverging; postverticals very minute, 

 hair-like, strongly convergent, touching at tips; on lower occipital orbit near the 

 eye a small weak setula, differentiated, however, from the minute setulae of the 

 orbital fringe. The anterior dorso-central is much shorter than the posterior dorso- 



