234 Journal New York Entomological Society, f^'oi- ^^i- 



Tibiae entirely yellow 5; 



5. Abdomen usually with three pairs of dorsal black spots, and corresponding 

 lateral spots ; arista blackish ; legs yellow except the base of the 

 femora cinereous black and the end of the tarsi brown. 2-3 mm. 

 (Eur. ;* Mass., Col.*) juncorum Fallen. 



Abdomen entirely unspotted, lacking both the dorsal and the lateral mark- 

 ings; 2-3 mm. (Eur. ;* Col.,* Wash.*) aridella Fallen. 



Subfamily MILICHIIN^. 



Table of Genera. 



Costa prolonged as a pointed lappet at its break at the end of the auxiliary 

 vein ; lower f ronto-orbitals bent inward ; interfrontal stripes bearing 

 evident cruciate bristles ; abdomen often silvery ; last section of fourth 

 vein at most two times as long as the preceding section ; calypteres 

 with long cilia; cheeks very narrow; mesopleurae often bristly. 

 (Group MiLICHIINA.) 2. 



Basal section of costa not overlapping the outer section at the break before 

 the end of the first vein ; cruciate bristles sometimes reduced ; abdo- 

 men rarely silvery ; last section of the fourth vein at least three times 

 as long as the preceding section ; anterior crossvein beyond the costal 

 break ; mesopleurae rarely with bristles ; calypteres rarely with dense 

 cilia. (Group Madizina.) 7. 



2. Hind margin of eye not excised ; eyes pubescent 3. 



Hind margin of eye excised at the level of the antennae : this may be a 



narrow excision or may continue to the lower corner of the eye. . . .4. 



3. Mesopleurae bare ; proboscis not remarkably developed, palpi spatulate ; face 



broader. (Europe, Africa, Java.) Milichia Meigen, sens. str. 



Mesopleurae with three or four strong bristles ; proboscis elongate and 

 geniculate, the outer portion long and directed backward ; palpi slen- 

 der; face narrow. (South America, North America.) 



Pholeoinyia Bilimek. 



4. Mesopleurae without strong bristles ; first segment of male abdomen pro- 



jecting over the middle of the second segment 5- 



Mesopleurae with strong bristles ; posterior margin of the first segment of 

 the abdomen ^^J straight, not medially gripping the second segment ; 

 proboscis not lengthened. (South America.). . .PseudojnUichia Becker. 



5. Head and thorax roughened, with fine pubescence ; proboscis very long and 



geniculate. (South America.) Ulia Becker. 



Head and thorax smooth, the hairs and bristles normal; proboscis normal. 6. 



6. Four dorsocentrals ; pubescence of mesonotum scattered and coarse. (South 



America.) Eccoptomma Becker. 



One or two dorsocentrals ; pubescence of mesonotum close and short. 

 (Europe, Africa, New Guinea, Hawaii, North America, South 

 America.) Milichiella Giglio-Tos. 



