106 
Psyche 
[Sept.-Dee. 
Process of hypandrium evenly rounded, without such a pro- 
jection. S. E. Asia and East Indies . . borneensis Hagen 
Oligotoma falcis Ross, new species 
(Figures 9 to 13) 
Holotype male (on slide) Color — Head and submentum 
blackish-brown, mandibles tan with brown inner margins and 
apices; remainder of body and appendages medium brown 
except terminalia which is dark brown. Dimensions — length 
8.5 mm.; fore-wing length 5.2 mm., breadth 1.3 mm. 
Head (fig. 9) with form illustrated. 
Wings as throughout the genus; with three C — and four 
Figures 9 to 13, Oligotoma falcis n. sp., holotype male: fig. 9, head; fig. 10, 
terminalia (dorsal); fig. 11, detail of 10 LP ; fig. 12, terminalia (ventral); fig. 
13, detail of LPPT (ventral). Explanation of symbols under figs. 1 to 5. 
Ri — R 2+ 3 cross-veins in fore-wing; five C — R x and six 
Ri — R 2+ 3 cross-veins in hind-wing. Hyaline stripes narrow, 
sharply defined. 
Terminalia (figs. 10 to 13) with left tergal process (10 LP) 
(fig. 11) rather broad, sides subparallel, abruptly, irregularly 
convergent distad, especially on left side, terminating as a hook 
directed to the left. Major right tergal process (10 RPi) nar- 
row, sclerotic apically, narrowly truncate; with a prominent, 
subapical, outer spine which is somewhat appressed. Left para- 
proct (LPPT) (fig. 13) developed as a complex, sclerotic, hori- 
zontal spine; inner portion narrow, sickle-shaped, crossing 
venter of HP; outer portion shorter, abruptly turned (90°) 
