74 ENTOMOLOGICAL NEWS. [March, '03 



produced on the outer side : remainder of legs simple, ungues and pul- 

 villi minute. 



Halteres pale luteous. Tegular cilia short, sparse, dusky. Wings 

 normal, clear hyaline, strongly iridescent, costa nowhere thickened, 

 third and fourth veins parallel, posterior cross- vein short, perpendicular 

 to the wing-axis, less than one-half the length of the outer portion of 

 the fifth vein, sixth vein faint. 



Three males. I^ength 1.75 mm. Chester Co., Pennsyl- 

 vania, June 3, 1902 (J. Chester Bradley), Opelousas, Louisiana, 

 and Austin, Texas, May 2, 1902. These specimens from such 

 distant localities were taken in net sweepings, the Texan one 

 in the rank herbage along the Colorado River at the base of 

 Mount Bonnell. 



This curious little fly has its nearest relatives in the genus 

 Chrysotus, for which it shows its affinities by the contiguity of 

 the eyes below the antennae, the width of the vertex, the very 

 short antennae, the small pulvilli and the lack of true bristles 

 on the hypopygium. The depressions of the mesonotum in 

 front of the scutellum is not marked enough to exclude it 

 from this division. Moreover, a number of Chrysotus recently 

 described show greatly lengthened palpi, as albipalpus Aldrich, 

 for instance. The first species described, under this genus 

 were stout and possessed short legs and rather broad wings, 

 but forms later described show that a stature as slender as 

 that of the present species may obtain also. Its narrowed 

 wings and slender legs suggest an affinity to Didphorus, but 

 here also the middle legs are never longest, while the minute 

 pulvilli, the obliterated face and the glabrous hypopygium pre- .. 

 elude this genus. 



Curiously enough all other genera of Dolichopodidce have 

 their palpi either incumbent upon the proboscis or hanging by 

 its side. The enormous size of the palpi of philtnim in relation 

 to the minute proboscis naturally can not allow of this juxta- 

 position and the palpi are free to grow laterally. In the genus 

 Orthochile the palpi are ribbon-like, in Diostracus and Aphro- 

 sylus they are spoon-shaped, all the remaining members of 

 this family have the palpi small and comparatively scale-like. 

 Thus the present species departs in the shape as well as the 

 size and orientation of its mouth-parts. As an interesting 



