PROCEEDINGS OF THE 



ENTOMOLOGICAL SOCIETY OF WASHINGTON 



VOL. 23 MARCH 1921 No. 3 



DESCRIPTION OF A NEW GENUS OF NEMOCERA. (Dipt.) 



BY W. L. MCATEE. 



Mr. D. W. Coquillett identified the fly here described as 

 belonging to the genus Eupeitenus 1 Macquart, of the Bibionidae, 

 relying, however, overmuch on "Macquart's well-known inac- 

 curacy" to cover discrepancies between the characters of his 

 specimen and those given in the original description and figure. 

 As a matter of fact the rly not only does not belong to the genus 

 Eupeifenus, nor to the family Bibionidae, but is so aberrant a 

 genus that it is the type of a new sub-family characterized by 

 Mr. Raymond C. Shannon in the appended paper. 



Axymyia new genus. 



Second longitudinal vein long, extending into terminal fourth of wing, radial 

 sector forking anterior to median crossvein, third vein forked, its upper branch 

 joining second vein at its termination, fourth vein extending to apex of wing; no 

 discal cell; fifth vein forked, a little beyond median crossvein; anal vein not 

 reaching wing margin (venation well shown in Coquillet's figure); thorax some- 

 what humped and swollen, head inserted low; antennae 15-jointed about as lony 

 as height of head. 



Genotype: Axymyia furcata new species. 



Axymyia furcata n. sp. 



Female: General color hiscous, paler along sutures and incisures; eyes black, 

 ocelli on a prominent tubercle which is rather darker than surrounding surface; 

 basal joints of antennae and area about insertion of antennae pruinose; halteres 

 pale fuscous; legs the same, terminal joints of tarsi darker; wings slightly fumose, 

 veins brown. 



Type a female, Germantown, Pa., April 26, 1908, H. S. Har- 

 beck (U. S. N. M.). Pnrutype female, Great Falls, \'a., April 

 20, 1916, W. L. McAtee (Biological Survey). The species has 

 been collected also in Dead Run Swamp and near the mouth 

 of Dead Run, Va., and at Ithaca, N. Y. 



Rediscovery of the Bibionid Genus Eupeitenus. Km. News, Vol. \\, \O. 

 3, March, 1909, p. 10'.. fig. 



