E. T. CRESSON, JR. 33 



short, onding opposite anterior cross-vein, setulose to apex; second vein 

 ending before apex of wing; third, curved so as to narrow the subinarginal 

 cell at middle, divergent from second and subparallel with fourth veins; first 

 basal cell twice as long as second; small cross-vein at middle of discal cell; 

 anal and second basal cells subequal, former truncate at apex. Length. — 

 6 to 9 mm. 



Neuroctena simplex Loew (PL II, fig. 21.) 



1862. Dnjomyza simplex Loew, Mon. Dipt. N. A., i, 128. 



Similar to anilis in color but the cross- veins are not, or at most the posterior 

 one faintly, clouded. Pile short and mostly black, only that on venter and 

 beneath femora pale. Frons with only one frontal bristle. Antennae erect. 

 Face slightly concaved, not sunken and with no overhanging frontal margin; 

 epistoma not prominent. Arista distinctly plumose. Length. — 4.5 to 7 mm. 



Described from the Middle States. Type should be in the 

 IMuseum of Comparative Zoology. I have not seen it. 



I cannot exclude this species from the genus on account of 

 the weakly produced epistoma, in which respect it is similar to 

 some species of the Sciomyzinae sens, strict. 



Spccimcits Examined. — 10 cf , 6 9- 



New York: Ithaca, June 6 to August 28, [Cornell]. 



NrwJerse-;: Delaware Water Gap, July 14, (C.W.Johnson), [Johnson]. 



Neuroctena fumida Coquillett. 



1901. Neurodena fumida Coquillett, Proc. U. S. Nat. Mus., xxiii, GIG. 



Similar to simplex. Abdomen except apex and ba.se, and all tarsi, black. 

 Arista, bristles and pile, black. Arista pubescent. Wings dark yellow. 

 Prescutellars wanting. Third costal section one-half to one-third as long as 

 ultimate section of fourth vein. First vein bristly at a])ical portion only. 

 Fore femora with bristles above. Hind femora with numerous anterior 

 flexor setulae. Length. — 5 to 5.5 mm. 



Type. — 9 ; Beulah New Mexico, August 17, (Cockerell), [U. S. 

 N. M., no. 5594]. 



Before me is a female from Carbonate, Columbia River, British 

 Columbia, July 7 to 12, (J. C. Bradley), [Cornell]; also a male 

 from Dutch Lake, Grant, Colorado, alt. 11,000 ft., August 11, 

 (E. C. Jackson), [Biol. Surv.l. 



This species is noticeable in its flattened face, with but slightly 

 prominent epistoma. In general it is less pilose and more strongly 

 setulose than the other species, especially as to the legs. It 

 might easily be confused with Renocera lo7igipes at first glance, 

 although considerably stouter. The limited series of bristles on 



TRANS. AM. ENT. SOC, XLVI. 



