FUNGUS GNATS OF NORTH AMERICA. 285 



Var. a. A number of specimens resemble both the above 

 and the following species {L. Hneola) in most particulars, dif- 

 fering from the former and resembling the latter in the pleural 

 marking; but differ from the latter in having hind coxse and 

 femora as in the former. In some specimens the head is 

 marked as in the former while others are marked as in the 

 latter. The forceps limb of a Wyoming specimen is shown in 

 figure 165. The last section of Ri is at least as long as the R-M 

 crossvein (Fig. 199). The preapical wing band is broad except 

 in the Carolina specimen. Sanford Univ. (J.M.A.) ; Marin Co. 

 (Hy Edwards), Calif.; Little Wind River, Wyo., (W.M.W.) ; 

 and N. C. 



II. Leia Hneola Adams. 

 Kansas Univ. Science Bui. II. 25. 1903. (Neoglaphyroptera). 

 Female.. Length 4 mm. Differs from L. striata in the fol- 

 lowing particulars : The brown of the occiput is sharply de- 

 fined, the center and sides being yellow ;' pleura with a brown 

 spot anterior to and above the middle coxse, metapleura above 

 hind cox£e brown ; the last 2 abdominal segments almost wholly 

 yellow; all trochanters, the posterior coxae and femora black, 

 the latter with a narrow longitudinal line on the inner and outer 

 sides, yellow ; the brown crossband on outer part of wing is 

 much broader. "Karn Co., Calif." 



12. Leia unicolor Walker. 

 List of Diptera, Brit. Museum I. 93. 1848. 



Body tawny ; head reddish brown above ; feelers and eyes 

 black; the former tawny at the base; palpi yellow; hips and 

 thighs yellow, shanks and feet dull tawny ; wings colorless ; 

 veins brown; poisers yellow. Length of the body 5 mm., of 

 the wing 10 mm. St. Martin's Falls, Albany River, Hudson's 

 Bay. 



Whether the species belongs to this genus cannot be deter- 

 mined from the description. 



13. Leia plebeja, n. sp. 

 Male and female. Length 3.5 mm. Length of wing 3 mm. 

 Pale reddish yellow ; antennze robust, longer than the head ana 

 thorax, six or seven apical joints somewhat infuscated ; face and 



