530 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.44. 



Head: rostrum and palpi dark brown; vertex brown, more yel- 

 lowish anteriorly; occiput light brown. Antennae, basal segment of 

 the scape brown, second yellowish, third light brown, whitish 

 apically, darker browTi subapically, each succeeding segment of the 

 antennae bi-nodose, dark brown on the nodes, lighter brown at the 

 constriction, and pale, almost white, at the ends. 



Thorax: pronotumpale yellow: mosonotum, pracscutum very light 

 brownish-yellow ^vith two broad dark bro-vvn stripes recurrent along 

 the lateral margin of the sclerite; a broad lateral stripe extending 

 from behind the pseudosuture to the transverse suture; pseudo-suture 

 black, scutum light bro\vnish-j'-ellow medially with a dark browni line 

 on either side; scutellum and postnotum brown, dusted with yellow. 

 PleuriB: dorsal portions of the epipleurte dark brown, remainder of 

 the epipleurae brownish-black, deepest medially. Halteres light 

 brown. Legs : coxse and trochanters dull yellow ; femora light brown, 

 extreme tip light j^cllow, sub-apical ring black; tibia light brown, 

 tip broadly black; tarsi white, the hindermost pair clearest white, 

 anterior pair has the extreme tips of the segments indistinctly brown. 



Wings: light gray, indistinct rounded clouds at the origin of Rs; 

 along the cord; at the fork of Rj+s; ^^ cross vein r; at the fork of 

 Mi+2, and at the fork of Mj and Cuj. Venation: Sc rather long, Sc, 

 ending rather nearer to the fork of R2+3 than Rs. Rs evenly arcuated 

 at its origin, in a line with R2+3; basal deflection of R^+j arcuated ; 

 basal deflection of Cuj at the fork of M; M3-1-CU1 longer than Mj 

 alone. (See fig. 18.) 



Abdomen brown ; sternum dark. 



Hypopj-gium: posterior margin of the ninth tergite (d) produced 

 caudad into a blunt, obtuse tooth; pleurje (c) very long, cylindrical, 

 thickly clothed on the external facies mth long hairs, bearing two 

 apical appendages, the upper one (a) is chitinized, cylindrical, blunt 

 at the apex and there armed with a sharp, recurved hook ; the lower 

 appendage (6) is not chitinized, or only feebly so at its tip, rather 

 shorter than the upper apical appendage and more pointed at its tip. 

 On the ventral aspect, the ninth sternite is broadly concave; the 

 anal tube (e) broad, distinct; guard of the penis entirel}^ hidden from 

 the ventral aspect, scarcely apparent from the dorsal aspect. (See 

 fig. 1.) 



Igarape Assti, Par&, Brazil (Parish), Jan. 19, 1912 (1 male); Jan. 

 30, 1912 (2 males); Feb. 4, 1912 (3 males). 



Specimens in Cornell University collectioTi and in author's col- 

 ection. 



POLYMERA SDPERBA, new species. 



Size, medium; flagellumof the antenme bi-nodose; cell Mj present; 

 wing dark-colored with white spots. 



Male. — Length, 5.8 mm.; wing, 5.8 mm.; antennae (about), 7.8 mm. 

 Head: vertex dark chestnut-red, paler, yellowish, on the occiput; 



