no MAINE AGRICULTURAL EXPERIMENT STATION. I912. 



Table of species. 



a. Wing spotless. • i. ignobilis. 



aa. Wings marked with brown central spot and preapical cloud. 



b. Preapical fascia of wing distinctly crosses the media; length 



2.5 mm. 2. ornate. 



bb. Preapical cloud diffuse, its long axis parallel to the long axis 



of the wing; length 4 mm. 3. varia. 



I. Zygomyia ignobilis Loew. 



Berl. Ent. Zeitschr. XIII. 150. 1869. 

 Male and female. Length 2.5 mm. Fuscous, subopaque, 

 pile pale, appressed, sete black. Head black, antennae brown, 

 scape dusky yellow. Hypopygium yellowish (Fig. 97). Coxae 

 and legs yellow, hind margins and tips of hind femora brown 

 to blackish ; spurs and tarsi brown ; middle tibiae each with one 

 small and one large seta on the flexor surface. Wings grayish 

 hyaline (Fig. 214).. Halteres yellow. ''Aliddle States;" Ithaca. 

 N. Y. 



2. Zygomyia ornata Loew. 



Berl. Ent. Zeitschr. XIII. 150. 1809. 

 ]\rale and female. Length 2.2-2.5 ^''''i''''- Head blackish, 

 antennae fuscous, scape, base of flagellum and palpi yellow ; 

 hairs pale. Thorax and abdomen fuscous, ojDaejue, pile pale, 

 setae black; h3^popygium yellowish (Fig. 98). Coxae and legs 

 yellow, tips of middle and hind femora and hind tibi^, more or 

 less dark browm, tarsi largely brown. Wing cinereous hyaline, 

 yellowish toward the costa, a brown central spot, a preapical 

 fascia, and a small less distinct spot behind the cubitus (Fig. 

 216). Halteres 3^ellow. Wis.; Chicago, 111., (W.M.W.) June, 

 Aug.; Ithaca, N. Y., Aug. 



3. Zygomyia varia Staeger. 



Krojer: Tidskr. 266. 1840. (Mycetophila). 

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

 scape and palpi usually yellow. Thorax and abdomen brown- 

 ish black subopaque ; humeri reddish yellow ; hypopygium dusky 

 yellow ; hairs brown with a 3'ellowish tinge, appressed. Coxae 

 and legs reddish or rusty yellow, the tarsi and spurs, the tip* 

 of the hind femora, the extensor surface of the last and a spot 



