98 Psyche [October 



7. Femoral bands present on all legs; palpi brown (Europe; 



Mass., det. Hough) annulipes Macquart 



Femoral bands weak or wanting on front and middle legs 8 



8. Vertex narrower than depth of eye; head largely yellow, 



punctured; halteres yellow 9 



Vertex much broader than depth of eye; head black except 

 narrow stripe on lower occipital orbits, deeply pitted; 

 halteres black. (Wash.,* Ore.) scrobiculata sp. nov. 



9. Palpi entirely black 10 



Palpi tipped with black; anterior femora apically dark; sides 



of thorax more or less yellow; first posterior cell basally 

 shaded. (Mex.) varipes Wulp 



10. Head, humeri, scutellum, posterior sides of mesonotum and at 



least sterno-mesopleural suture yellow. (N. H., D. C, 



N. J., Idaho.,* Wash.*) notata Loew 



Thorax entirely black, except a reddish scutellar spot, occiput 

 and frontal orbits mostly black. (Mass.*) . . erudita sp. nov. 



11. Black; antennae, broad apices of femora, tibiae and scutellum 



reddish; marginal cell dark gray, costal cell brownish. 



(Nev.) robusta Coquillett 



Blackish-green; antennae black; legs yellowish; wings hyaline. 

 ("U. S.") nigroviridis Walker 



Chyliza scrobiculata sp. nov. 



Female. Length, 6 mm. Robust, deeply and closely punctured, 

 with short dense woolly pale pubescence and short black bristles. 

 Head large, eyes oblique, lower occiput deep, upper occiput flat, 

 head coarsely punctured except the face and the shining vertical 

 triangle which reaches half way to the antennae, front opaque 

 except the periorbital stripes; head black except for an orbital 

 yellow stripe on lower occiput and a small orbital spot just below 

 the antennal level; antennae black above, yellow below, the third 

 joint thumb-shaped, half longer than broad, arista brown on basal 

 third, apically white; palpi broad, hairy and black. Thorax 

 entirely black except the outer part of the scutellum, metathoracic 

 callosities strong. Abdomen depressed, densely pubescent. Legs 

 including the coxae reddish yellow, the hind femora with a subapical 

 incomplete black annulus. Halteres black. Wings smoky black- 

 ish throughout, darkest along the costa and at the tip, second 



