398 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



brownish; subapical band sometimes very pale. Basal band abbre- 

 viated, does not reach posterior wing margin and does not end in a 

 dark brown spot or cloud. Costa not blackened at tip of humeral 

 <;ross-vein nor at tip of subcosta. Subcostal cell (stigma) 2.5 (99 3.0) 

 times as long as broad at base. First costal section 1.07, second 2.11, 

 third 1.25, and fourth 0.79 mm. long; basal section of fourth longitu- 

 dinal vein (Ml) 2.02, median (penultimate) 0.45, and ultimate 2.17 

 mm. long. Inner cross-vein more obliquel}^ placed than outer (tp) 

 and as long as the penultimate section of Mi (0.45 mm.); tp 0.95 mm. 

 long. Wliole anal cell 1.38 mm. long, 2.9 times as long as apical 

 process (0.48 mm.). 



Preabdomen moderately shining, testaceous yellow, covered with 

 appressed yellowish and blackish hairs, 3.8 mm. long and 2.9 mm. wide. 

 In the specimen examined only the fourth tergite with a pair of small 

 blackish brown lateral spots. The 0.91-mm.-long fifth tergite approxi- 

 mately 1 .5 times as long as fourth (0.59 mm.). Sternites and membrane 

 testaceous yellow. 



Postabdomen brownish yellow; epandrium wide oval (Costa Lima 

 1934, fig. 1). 



Female: Like male. Length of bod}^ 6.6 (7.4) mm.; wing 6.7 (7.8) 

 mm. long and 2.5 (2.8) mm. wide, 2.7 (2.8) times as long as wide. 

 Head 1.18 (1.41) mm. long, 2.09 (2.50) mm. wide, and 1.80 (2.18) 

 mm. high. Frons at vertex 1.03 (1.23), and at anterior margin 0.82 

 (0.98) mm. broad, and medianly 0.91 (1.02) mm. long. Postpedicel 

 0.32 (0.40) mm. long and 0.22 (0.25) mm. wide, 1.5 (1.6) times as long 

 as wide. Eyes in profile 1.36 (1.63) mm. high and 0.77 (0.79) mm. 

 long, 1.7 (2.0) times as high as long (wide) and 4.3 (4.7) times as high 

 as genae. Genae below eyes 0.29 (0.37) mm. wide, nearly as wide as 

 inferior region of postcranium in profile (0.32 (0.45) mm.). 



Thorax with scutellum 3.0 (3.8) mm. long and 2.2 (2.7) mm. wide, 

 with the same characters as in male. 



Wings like that of male; first costal section 0.85 (1.07), second 2.23 

 (2.62), third 1.14 (1.34) and fourth 0.75 (0.79) mm. long. Basal 

 section of fourth longitudinal vein (Mi) 2.02 (2.27), penultimate 0.45 

 (0.50), and ultimate 2.09 (2.34) mm. long. Inner cross-vein (ta) 0.43 

 (0.52), outer 0.93 (0.95) mm. long; ta approximately as long as penulti- 

 mate section of Mi. Whole anal cell 1.34 (1.66) mm. long, 2.7 (2.8) 

 times as long as apical process (0.50 (0.57) mm.). 



Preabdomen 2.4 (2.6) mm. long and 2.8 (2.9) mm. wide, wider than 

 long; fourth to sixth tergites each with a pair of small lateral rounded 

 blackish brown spots; the pair on fifth tergite usually larger than the 

 others; third tergite sometimes also marked with a pair of small 

 lateral spots, usually lighter in color that the others. Fifth tergite 

 slightly shorter (0.36 (0.34) mm.) than the sixth (0.41 (0.43) mm.). 



