Sept., 1913.] Melander: Synopsis of Diptera. 249 



Front nearly or quite bare, usually entirely gray ; acrosticlials in evident 

 rows, on the suture six rows ; crossveins but little clouded ; fifth vein 

 scarcely reaches the wing-margin. 2 mm. (Eur. ; Mich.) 



boletina Zetterstedt. 



CERODONTA Rondani. 



Largely yellowish species, the disk of the mesonotum cinereous black, more or 

 less marked with two paler vittae and with a yellowish spot before 

 the scutellum ; pleurae mostly yellow ; scutellum yellow in the middle ; 

 legs yellow, the tarsi brownish. 2 mm. (Mass.,* N. H., D. C, N. J., 

 W. Ind., La.,* Ind., 111.,* Tex.*) {Ceratomyza.) dorsalis Loew. 



Mostly black ; the mesonotum subshining black to the black scutellum, not 

 vittate ; pleurae mostly black ; legs black or blackish, the femora more 

 or less yellow. 2.5 mm. (Eur. ;* Mont.,* Wyom.,* Id.,* Wash.,* 

 B. C.,* Ore.,* Cal.*) femoralis Meigen. 



HEMEROMYIA Coquillett. 



Black, the face and cheeks yellow, the antennae, palpi and halteres brownish; 

 ocellar triangle and the orbits slightly polished ; four dorsocentrals ; 

 sections of the fifth vein proportioned one to five, the anterior cross- 

 vein at three fourths the length of the discal cell. 1.5 mm. (N. Mex.) 



obscura Coquillett. 



ANTINEURA new genus. 



Related to Agromyza, but the discal cell is open outwardly. Four 

 fronto-orbitals, the lower three convergent; cheeks receding, about 

 one third as deep as the eye-height; proboscis short and fleshy; arista 

 bare, a little more than twice the length of the third antennal joint, 

 its basal segment thickened. Mesonotum pollinose or shining; one 

 anterior and three posterior dorsocentrals, two rows of sparse acros- 

 tichals; four scutellars; one sternopleural ; two mesopleurals. Costa 

 continuing to the fourth vein, broken only at the end of the first vein ; 

 the auxiliary vein rudimentary, confluent with the first vein along 

 the middle of its course; second, third and fourth veins equally strong, 

 parallel, located in the anterior part of the wing, the fourth vein 

 ending before the wing tip; posterior crossvein entirely wanting, the 

 anterior crossvein before the costal break ; the vein between the first 

 and second basal cells weak; only the base of the anal vein evident; 

 the fifth vein gently curved, diverging from the fourth and ending at 

 the middle of the hind margin of the wing, gradually evanescent, but 

 its base as strong as the other longitudinal veins. 



Type species: Antineura togata, following. 



