210 ENTOMOLOGICAL NEWS [May, 14 
light yellow, the terminal palpal segments a little more brown; an- 
tenne with the two basal segments dull yellow, flagellum black; head 
dull greenish brown (greasy in the type). 
Thoracic dorsum dull brownish yellow without well defined stripes; 
caudo-lateral angles of the prescutum brown; scutum and scutellum 
brown; postnotum greenish brown. Pleure dull yellow. Halteres 
yellow. 
Legs light yellow, the tibie a little darkened at the tip, tarsi brown. 
Wings hyaline, cells C and Sc yellow; veins C, Sc and R yellow, 
other veins dark brown. Venation (see Plate IX, figure 5): Deflec- 
tion of R2 plus 3 with a spur at midlength; cell 1stM2 closed. 
Abdominal tergites rich brown with a blackish median blotch; 
sternites brownish, 
Holotype, female, Ascuncion, Villa Morra, Paraguay, Vezen- 
yi, in the Hungarian National Museum. 
S. occulta differs from S. flavipennis O. S.™“, the only 
described species with a closed cell 1stM2, in its lack of dark 
crossbands on the wing. 
Genus Rhabdomastix Skuse. 
1889. Rhabdomastix Skuse; Proc. Linn. Soc. N. S. Wales, ser. 2, 
vol. 4, p. 828. 
Rhabdomastix (Rhabdomastix) illudens sp. n. (PI. IX, fig. 6.) 
Antenne of the ¢ between four and five times as long as the body; 
a dark brown stigmal spot. 
Male—tLength, 7.4 mm.; wing, 7.7 mm.; antenne, 33 mm. Palpi 
very short, the first segment light brown, the apical segments almost 
black; antenne with the basal segment enormously enlarged, barrel- 
shaped, the second segment small, rounded, flagellar segments succes- 
sively elongated, the apical segments very long, the whole antenne 
almost five times as long as the body; scapal segments brown, flagel- 
lar segments very pale, the extreme tip of each segment narrowly 
dark brownish black, the apical antennal segments more brown; the 
whole head underneath the swollen scapal segment is very deep and 
stout; head light gray. 
Thorax brown with a light gray bloom; pseudosutural fovea large, 
prominent, black; tuberculate pits rather far cephalad, black; scutum 
and postnotum grayish, scutellum rich brown. Pleure pale brownish 
with a sparse gray bloom. Halteres short, yellowish. 
Legs, coxz and trochanters yellowish; fore and middle trochanters 
long and slender, the hind trochanter shorter; femora and tibie yel- 
lowish brown becoming browner on the tarsi. 
14 Osten Sacken, Smithson. Miscell. Coll., vol. 11, No. 256 (1873). 
