FUNGUS GNATS OF NORTH AMERICA. 113 



bb. Wing venation complete, no detached veins. i. Eiignoriste. // 



aa. Proboscis not greatly prolonged. 



b. Wing venation defective, several veins detached at base. 



cZ^-l^^^^U^y^^,.^/£i,^^ j> 2. Manota. / )V 



bb. Wings when present with complete venation, no detached veins, 

 c. Female wingless, in the male the media springs from the 

 radius at an angle, the crossvein being obsolete (Fig. 264). 



3. Pnyxia n. g. /// 

 cc. Both sexes with wings: crossvein present. 



d. Wings very distinctly hair}^' claws not denticulate. 



4. Trichosia. , '•; ' 

 (Id. Wings with microscopic setulag but not hairj'. 



e. Antennal joints of the male pedicillate and with whorls 



of hair; forks of media arcuate. 5. Zygoneura.,'/C^ 



ee. Antennal joints bare or with short hairs. 



f. Forks of media arcuate, and claws toothed. 



6. Metangela. 1^^ 

 ff. Forks of media not arcuate, or if so, claws not toothed. 



g. Claws toothed. 7. Phorodonta. fit 



gg. Claws not toothed. 



h. Face strongly produced. 8. Rhynchosciara. I fy 



hh. Face not produced. 9. Sciara. //^ 



I. Genus Eiignoriste Coquillett. 



Proc. Wash. Ent. See. Ill, 321, 1896. 

 Head, small, antennae filiform, pubescent, i6-jointed ; pro 

 boscis rigid, filiform, directed downward and backward, longer 

 than the head, palpi 4-jointed, the first joint very short; 3 

 ocelli ; eyes deeply emarginate. Wings bare, venation like 

 Sciara (Fig. 253). Entire insect Sciara-like in appearance 

 except for the elongate proboscis. Structure of eyes as in 

 Sciara. 



Table of Species. 

 a. Proboscis longer than the head and thorax. i. occidental's. 



aa. Proboscis slightly longer than the head, slender, horny. 



2. brevirostris. 



I. Eiignoriste occidentalis Coquillett. 



Proc. W^ash. Ent. Soc. Ill, 321, 1896. 

 Male and Female. Length 2.5 to 3 mm. Head and thorax 

 black, subshining. antennae, proboscis, palpi and halteres black- 

 ish brown, abdomen dark brown ; coxse and legs yellowish to 

 brownish, tarsi darker; hypopygium (Fig. 138V Wings hya- 



