59 



First vein bristly on nearly its entire length, frontal vittti next th e 

 an touna> ooaroi'l}''. wider than eill i cr .side of the front , abdomen 

 and legs AvaryTiig- from yellow to black, fonrth vein son)etimes 

 almost obsolete beyond the bend; l§ysth, 4 to C mm. White 

 Mountains and Franconia, X. H. ;A'X>istnct of Columbia; south- 

 ern Illinois, and (lermany. A female specimen from (rermany 

 received from Zeller, and by him labeled Thryptocera inlipennis 

 Fall. (DipteraSueciie, Muscidie, p. 18; 1820: Tar//ma. Thryp- 

 tocera amcricamt Toww^awA^ Canadian Entomologist, Vol. XXIV, 

 J). 69; March, 1892. Gymnopareia sp., Brauer and Bergenstamm 

 in litf.) pilipennis Fallen. 



Genus LASIONEURA Coq. 



Lasioneiira Coquillett, Journal N. Y. Ent. Soc, Vol. Ill, p. 50; .Tune, 1895. 



Our species is black, the frontal vitta, first two joints of antennfe, /^i^',pc^>.^^ 

 face, cheeks, palpi, coxie, femora, tibia' and sides of abdomen at base, '^^h'-*'{^4Z,<-^ 

 yellow; three postsutnral and three sternopleural macroclmetfle; length, r °^ 

 5 mm. From the type specimen. Santa Cruz County, Cal.; and 

 Washington. (Loo, cit.) johnsoni Coq. 



Genus CHiETOPHLEPS Coq. - ^^ .. 



ChoetopTileps Coquillett, Jouniiil New York Eut. Soc, Vol. Ill, p. 51 ; June, 1895. 



Our single species is black, the palpi yellow; three i^ostsutural and 

 three sternopleural machrocha*tre; abdomen of female bearing a com- 

 pressed, rounded process thickly beset with short spines on the 

 underside of the second segment, and there is a short lifth segment, 

 both of which are absent in the male; length, -l to 5 mm. From the ^ ^ , 



type specimen. Massachusetts, Maryland, and District of Columbia. ^"^ '^^Vy 

 (Loc. cit.) -, setosa Coq. •^^^-^ ■ 



•■ r T.V.lV^f — ^ ^'^J^ Genus CELATORIA Coq,^-=r-/<^- >^ ' ^' ^ ' ^ ' 

 Celatoria Coqnillett, Insect Life, Vol. II, p. 235; February, 1890. 



Brauer and Bergenstamm, who did not recognize the species upon 

 which this genus is founded, erroneously state that Celatoria is syn- 

 onymous with Besseria.' Some of the principal differences existing 

 between these two genera were pointed out by the writer in an article 

 published in Psyche.^ A specimen of Celatoria diahroticw submitted 

 to the above mentioned authors was by them pronounced to belong to 

 a new genus near Xeiera. Our two species have three postsutnral and 

 three sternopleural macrocha^tie: 



Palpi yellow, front in both sexes wider than either eye, front pulvilli ^,v»/.„-«!e;-- 

 of male about one-half as long as the last tarsal joint; length, 4 zf.'^i/ 



to 6 mm. District of Columbia, College Station, Tex., and Cali- 



'Zweif. Kaia. Muh. Wieu, VI, p. 189; 1893. 

 s Vol. VII, p. 251 ; 1895. 



