352 PROCEEDESTGS OF THE NATIONAL MUSEUM vol. 104 j 



colored, in dried specimens with or without irregular, intensely yellow, 

 opaque spots. ||! 



Coxae and legs pale ochraceous yellow, except distitarsi of hind legs, ' 

 and two last tarsomeres of midlegs, which are yellowish brown; 

 bristles and hairs are yellow with brownish tinge, except anterodorsal 

 row of rather closely spaced bristles of hind tibiae, which are slightly 

 darker in color. 



Hal teres pale ochraceous, nearly whitish in color. m 



Wing with the usual pattern of the genus, but basal band abbrevi-" 

 ated, forming at apical process of the anal cell a diffuse and rounded 

 small translucent brown spot, hardly extending over anal vein ; a very 

 short section of costa blackened at tip of subcosta in some of the ex- 

 amined specimens ; anterior third to half of humeral cross-vein brown- 

 ish black. Stigma about 2.3 times as long as wide basally. First 

 costal section 0.70 (0.68), second 1.52 (1.43), third 0.82 (0.86), and 

 fourth 0.52 (0.50) mm. long; first section of the fourth longitudinal 

 vein 1.36 (1.41), penultimate 0.38 (0.43), and ultimate 1.16 (1.09) nma. 

 long; inner cross-vein (to) 0.32 (0.32), outer (tp) 0.66 (0.61) mm. 

 long, ta slightly shorter than distance between both cross-veins, and 

 almost parallel to tp; fifth longitudinal vein which forms the posterior 

 limit of the discoidal cell hardly excurved; the whole anal cell 0.98 

 (0.88) mm. long, 2.4 (3) times as long as apical process (0.41 (0.27) 

 mm.). 



Preabdomen subshining ochraceous yellow, opaque, sometimes 

 infuscated and translucent. Basal double tergite (segments 1+2) 

 covered with pale yellowish, other tergites mostly with dark brown 

 appressed hairs; shape of preabdomen wide-oval, 1.6 (1.5) mm. long 

 and 1.5 (1.4) mm. wide. Only fifth tergite marked with a pair of 

 subquadrate lateral black spots; fifth tergite 0.47 (0.43) mm. long, 1.5 

 (1.6) times as long as fourth. Sternites, membrane, and postabdomen 

 pale ochraceous yellow. 



Epandrium wide-oval, nearly round; two pairs of shining black 

 gonapophyses, posterior pair nearly as long as the anterior but very 

 acute. 



Female: Like male. Length 4.5 (5.1) mm.; wings 4.6 (4.5) mm. 

 long and 2.0 (2.0) mm. wide. Head 0.75 (0.85) mm. long, 1.36 (1.31) 

 mm. wide and 1.13 (1.13) mm. high. Frons at vertex 0.59 (0.60), 

 at anterior margin 0.41 (0.40) mm. wide, and in median 

 line 0.48 (0.54) mm. long. Postpedicel 0.20 (0.21) mm. long 

 and 0.16 (0.16) mm. wide, 1.2 (1.3) times as long as wide. Thorax 

 with scutellum 2.2 (2.1) mm. long and 1.6 (1.5) mm. wide, with the 

 same black markings as in male. 



Wings like those of male; first costal section 0.65 (0.68), second 1.52 

 (1.54), third 0.91 (0.79), and fourth 0.50 (0.50) mm. long; first section 

 of the fourth longitudinal vein 1.38 (1.47), penultimate 0.38 (0.36), and 



