FUNGUS GNATS OF NORTH AMERICA. 307 



e. Cubitus forks about opposite middle of petiole of media. 



I. manca n. sp. 

 ee. Cubitus fork^ distad of middl^^, of petiole of media. 



4. recens n. sp. 



1. Cordyla manca n. sp. 



Male and female. Length 3 mm. Head and antennae brown, 

 base of the latter and last 2 joints of palpi yellow, large palpal 

 joint dark brown; antennae of male 2-(-i3, of female 2+9 

 jointed. Thorax, abdomen and legs yellow, the mesonotum 

 more dusky with indications of 3 stripes ; posterior tergites 

 dusky yellow to brown, posterior margins yellow ; tibial spurs 

 and tarsi brown; setae black; hypopygium small (Fig. 115). 

 Wings grayish hyaline, costal cell brown (Fig. 224). Halteres 

 yellow. Ithaca, N. Y. 



2. Cordyla scita n. sp. 



Male. Length 2.5 mm. Fuscous ; last 2 joints of palpi^ 

 coxae, femora, tibiae and halteres yellow ; wings grayish hyaline, 

 costa cell dusky yellow (Fig. 225) ; tibial spurs and tarsi brown. 

 Antennae 2+13 jointed; hypopygium small (Fig. 116). Friday 

 Harbor, Washington (J.M.A.), July. 



3. Cordyla volucris Johannsen. 

 Genera Insectorum ; Fasc. 93. loi. 1909. 

 Male and female. Length 2.5 mm. Fuscous; base of each 

 antenna, last 2 palpal joints, coxae, femora, tibiae and halteres 

 yellow; wings grayish hyaline, costal cell more, grayish (Fig. 

 226) ; tibial spurs and tarsi brown. Antennas of male 2-|-i2, 

 of female 2-)- 10 jointed; hypopygium small (Fig. 20, pi. 7 

 Genera Insectorum, Fasc. 93). (Fig. 117). Bred from larvae 

 found in fungi. Ithaca, N. Y., Sept. 



4. Cordyla recens n. sp. 

 Male and female. Length 2.5 mm. Fuscous; base of an- 

 tennae, last 2 palpal joints, humeri, ventral segments 2, 3 and 

 part of 4 of abdomen, coxae, femora except tip of hind pair,, 

 tibiae and halteres yellow; tibial spurs and tarsi brown; wing's* 

 grayish hyaline, costal cell dusky yellow to grayish (Fig. 227). 

 Antennae of male 2-|-io, of female 2-f-9 jointed; hypopygium 

 small (Fig. 118). Ithaca and Caroline, N. Y., June, July. 



