NO. lOGi). SYXOPSIS OF SBOTROPICAL LIMXOBiyjE— ALEXANDER. 529 



Ilabiiat — Ilolotype. — Male, Igarapc Assii, Para, Brazil; Fci)niarv A, 

 1912 (Parish). Allotype. — Female, Igarape Assii, Para, Brazil; I'ol)- 

 riiarj- 7, 1912 (Parish). Paratype. — Female, Igarape Assii, Para, 

 Brazil; Jamiary 19, 1912 (Parish). 



Types. — In Cornell Univei-sit}- collection. 



Paratype. — In author's collection. 



POLYMERA CONJDNCTA, new species. 



Size small; flagellar scgnionts of the antonnse bi-nodose; wing with 

 cell M, absent ; M3 +C1I1 longer than M3 alone; tarsi not lighter colored 

 than the tibia?; thoracic pleura? unicolorous with the dorsum. 



2Ialc. — Length (abdomen unbroken) ; female, 2.S mm. ; wing, male, 

 3.0 mm. 



Female. — Length, .3 mm.; antennas, male, 4.4 mm. 



Male. — Antennte dark brownish-black, not annulated, the flagellar 

 segments bi-nodose, deeply but broadly constricted medially; a group 

 of outstretched hairs extending from each node. 



Thorax light brown, rather yellowish; mesothoracic postnotum 

 dark colored ; pleuras not clearly darker than the rest of the thorax. 

 Halteres pale. Legs brown, the tarsi not paler, excepting the poste- 

 rior tarsi, wliich are rather paler browTi. 



Wings light brownish-gray. Venation: Sc short, Sc, ending 

 slightly before, or opposite to, the fork of Rs; Rs rather square at 

 its origin; R2+3 long; basal deflection of R4+5 long. Mj^-j fused 

 to the wing margin. Cu, +M3 much longer than Mj alone. Basal 

 deflection of Cu, slightlv before, or opposite to, the fork of M. 

 (See fig. 7.) 



Abdomen brown, darker than the Ihoi-ax. 



Female. — Antcnnse short, segments simple, browai; coloration as 

 in the male, ^'enation as in the male, but cross vein ?■ inserted 

 nearer to the fork of R,+3, and R, is almost at a right angle to R3 

 at its origin. 



Uahitat — Ilolotype. — Male, Igarape Assu, ParA, Brazil, Feb. 4, 1912 

 (Parish). Allotype. — Female Igarape Assii, Para, Brazil, Feb. 4, 1912 

 (Parish). 



Types. — In Cornell University collection. 



POLYMERA OBSCIIRA Macquarl. 



Polymcra obscura Macqu.\kt, Dipt. Exot., vol. 1, pt. 1, IS.'iS, p. 65, pi. 8.— 

 WiLLisTo.v, Trans. Ent. See. Lend., 1896, p. 297.— Huktee, Trans. Amer. 

 Ent. Soc., vol. 26, 1900, p. 292.— Alexander, Psyche, 1911, p. 200. 

 Polynicrafusca Keetesz, Cat. Dipt., vol. 2, 1902, p. 242. 

 Male. — Length, 5.2 mm.; wing, 5.8 mm.; antennae, 7.5 mm. 

 (about).; hind leg, femur, 4.6 mm. ; tibia, 4.8 mm.; middle leg, femur, 

 4.8 mm. ; tibia, 5.3 mm. 



69077°— Proc.N.M. vol.44— 13 34 



