132 C. H. TYLER TOWNSEND. 



nearly reaching base of third abdominal segment. Abdomen not 

 wider than thorax, elongate-oval, first segment hardly shortened ; 

 macrochaetse marginal and discal. Legs not long, only a little 

 bristly ; claws and pulvilli ( 9 ?) very short. Wings hardly longer 

 than abdomen, with costal spine, third vein bristly at base ; apical 

 cell closed in margin just before tip of wing; fourth vein curved, 

 apical cross-vein nearly straight ; hind cross-vein in middle between 

 small cross-vein and bend of fourth vein. Type, P. Indecmi n. sp. 



PiSeiidoniyothyi'ia iiidecisa u. sp. 9 .—Eyes light brown, frontal vitta 

 dark brown; sides of front, face and cheeks silvery, anterior pair of orbital 

 bristles strongest, directed forward and outward ; antennje and arista brown or 

 blackish ; proboscis brown, palpi yellow ; occiput cinereous, sparsely black-hairy. 

 Thorax silvery, with two narrow dark vittse. which are lost near suture ; scutelluni 

 black, more or less silvery. Abdomen deep shining black, segments two to four 

 narrowly silvery white at base, first segment with a lateral and a median marginal 

 pair of macrochietse, second with a lateral pair and a median marginal and discal 

 pair, third with a discal pair and six or more marginal ones, anal segment with 

 marginal and discal macrochaetse. Legs black, femora and tibiae more or less 

 bristly; pulvilli small, whitish. Wings grayish hyaline, tegulte nearly white, 

 halteres fuscous. Length of body 4. .5 mm. ; of wing 3.5 mm. 



Described from one specimen ; Carlinville, 111. (Chas. Robertson) 



