150 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



shorter or not longer than the abdomen, microscopically hairy. 

 Costa produced far beyond the tip of R4+5, but not reaching the 

 tip of the wing ; the subcosta ends over the small cell R-^ curved 

 toward the costa; Sc, (subcostal crossvein) proximad of the 

 small cell ; petiole of the fork of the media longer than the 

 R-M crossvein; cubitus forks proximad of the fork of the 

 media, but distad of the R-M crossvein ; anal vein very short 

 and incomplete (fig. 91). Winnertz reared specimens of this 

 genus from rotten stems of Carpinns betulus. 



Empalia tibialis Coquillett. 

 1901. tibialis, Coquillett, Proc. U. S. Nat. Mus. XXIII. 596. 



(Polylepta). 



Female. Length 5 mm. Head black, the face yellow and 

 rather densely covered with bristly hairs ; antennae brown, the 

 bases yellow, the third joint about twice as long as wide; mouth 

 parts yellow, the penultimate and antepenultimate joints of 

 palpi with leaf-like prolongation at the upper side of their 

 outer ends ; thorax polished, yellow, 2 approximated vittae on 

 the mesonotum and a transverse row of 3 spots on the metano- 

 tum dark brown, the hairs and bristles black ; scutellum brown- 

 ish yellow; abdomen yellow, the broad apices of the segments, 

 sometimes crossing the segment in the middle of the dorsum, 

 dark brown ; halteres and legs yellow, the tarsi yellowish brown ; 

 front tibiae each with a deep groove before apex of anterior 

 side, extending about one-third length of tibia; wings grayish 

 hyaline, costal cell tinged with yellow, subcostal vein obliterated 

 at its apex, the crossvein slightly before base of radial sector, 

 cubitus forking opposite the cell R^. N. H., N. J. 



This species, originally located in Polylepta, 1 think is more 



- naturally placed with Empalia. The straight course of R4+5 



seems to me to have greater value as a generic character than 



the incompleteness of the subcosta. See note under the genus 



Polylepta. 



8. Genus Dziedzickia Johannsen. 



Dziedsickia, Johannsen, Genera Insectorum 44. 1909. 



Hertwigia, Dziedzicki, Pamietnik Fizyjograf. V. 3. 1885. 



Eyes oval, somewhat notched out around the base of the an- 

 tennae, widely separated; ocelli 3 in number, the middle one 

 smaller, arranged in a transverse line on top of the head and 



