160 THE CANADIAN ENTOMOLOGIST 



Habitat. — Kansas . 



Holotype. — cf, Jetmore, Hodgeman Co., Kansas, July 18, 

 1917 (Alexander). 



Allotype. — 9 , Larned, Pawnee Co., Kas., Aug. 1, 1917 

 (Alexander). 



Paratypes. — 4 9 s, Icf , with the allotype. 



A review of the species of this genus in the United States will 

 be found in the Proceedings of The Academy of Natural Sciences 

 of Philadelphia, October, 1916, p. 508-528, Figs. 17-33, wings, 

 and 59-91, hypopygial details. The lettering of the appendages 

 is explained in that article under the consideration of G. cognatella 

 and G. florens. 



The majority of these specimens were taken along the Arkansas 

 River near Larned; in life the specimens appear very pale and 

 teneral as though not fully coloured. The immature stages are 

 spefit in the moist sand along the river, pupae being secured from 

 which the adults were bred. 



Genus Molophilus Curtis. 

 Molophilus perflaveolus, new species. 



Antenna? of the male not elongated; general coloration very 

 light yellow; male hypopygium with four long, slender, chiti'nized 

 appendages that are slightly curved toward their tips. 



Male. — Length about 3.5 mm.; wing 5 mm. 



Rostrum and palpi dark brown. Antennae with the basal 

 segments yellowish, flagellar segments brown, oval, slightly elon- 

 gated, bearing long verticils that are much longer than the seg- 

 ments that bear them. Head reddish yellow, darkest on the disk 

 of the vertex. 



Mesonotum light orange-yellow, the interspaces with a whitish 

 bloom, on the praescutum bearing numerous long, erect hairs. 

 Pleura orange-yellow, sparsely white pruinose. Halteres light 

 yellow. Legs with the coxae and trochanters yellow; femora light 

 brown, paler basally; tibiae and tarsi light brown. Wings light 

 yellowish; veins yellow with long, pale hairs. Venation some- 

 what as in M. flutonensis; basal deflection of Cin longer than the 

 deflection of Ms; Cui+Ms not twice the length of the deflection. 



Abdominal segments light brown; hypopygium elongated, 

 light yellow, the pleural hooks black; abdomen clothed with 



