104 NEW YORK STATE MUSEUM 



Adults bred from the pupae described above wore preserved in 

 alcohol, and hence the color characters are somewhat doubtful. 



Female. Brownish, abdomen pale, legs brown ;md white, daws 

 simple, no pulvilli nor enipodium ; fourth t;irsal joint one ha If MS 

 long :is the lil'th. posterior t;irsi ciliate with hair like setae, last 

 joint with only a i'e\v hairs; wings hare, without the crossvein-like 

 II,; length 3.5 mm. Head and month parts bn>\\ nish ; antennae 

 bro\\ n with white incisures; basal joint lrown. Thorax brown 

 i perhaps cinereous in dried specimens) with indications of dorsal 

 stripes. Alidomcii brown dorsally and white vent rally. Coxae 

 brown, fore and middle legs \\hite. \\ilh l>rowu knees and articu- 

 lations, hind legs brown, hasal H of the femora, hasal , l , of the 

 tibiae, and of metatarsi whitish. In some specimens the fore and 

 middle femora and tibiae have a brown ring near or beyond the 

 middle, and the posterior femora are vJiolK hro\\ n. Sometimes 

 the posterior tibiae also have a whitish ring near the lip and the 

 hind tarsi whitish. Ilalteres white with the tip of the knob some- 

 times darkened. 



Genus 7. Brachypogon Kiell'er 

 Bui. Soc. Ent. Fr. G9. 1899 



Belongs to the group Oeratopogon distinguished by 

 having the wings bare, in having media coalesced with R^, the 

 branches of the radius males. -cut. pnlvilli absent. (P1.17, fig.13). 

 Type (Vratopogon vitiosns Winn. No North American 

 species have thus far been described. 



XYLOCRYPTA Kleffer 

 Genus Xylocrypta Kieffer. Bui. Soc. Ent Fr. G9. 1899 



From the other genera of the group Ceratopogon it is 

 distinguished in having the wings bare, the media simple, 

 and the tarsal claws with teeth. Type species Ceratopo- 

 gon fasciata Meigen. 



Xylocrypta Kieffer is made a synonym of Palpoinyia 

 Kieffer by its author (1902). The name may be retained for a 

 group, including species, having a wing of the type shown on 

 pl.17, fig.16, and having femora either with spines (genus 

 P a 1 p o m y i a) or without (genus Ceratolophus). 



Genus 8. Ceratolophus Kieffer 



Belongs to the group Ceratopogon. Wings bare ; media 

 simple, Rj and R, connected by the crossvein-like R._, (resembling 

 P a 1 p o m y i a pl.17, fig.16) ; femora unarmed. 



