470 PROCEEiDHNGS OF THE NATIONIAL MUSEUM vor-. 91 



Head (fig. 115) elongate, narrow; eyes rather small, slightly in- 

 flated, facets large and outlined by pigmented interspaces; eye inter- 

 space equal to two and one-half eye widths; sides behind eyes two 

 eye lengths long, nearly straight, scarcely convergent caudad; pos- 

 terior margin broadly rounded; frontal region transA'ersely rugose: 

 occipital foramen small, narrowly rounded anteriorly. Submentum 

 small, quadrate; sides slightly arcuate, gradually divergent from 

 base; anterior angles rounded; anterior margin feebly arcuate. Man- 

 dibles with very broad bases, strongly narrowed distad ; apical teeth 

 short, broad, well defined ; medial angles very sharp, prominent ; 

 inner margins of base greatly developed mesad, rounded. 



Wings without notable features except hyaline stripes in hind- 

 wing are very broad and diffused, much more so than in forewing. 



Terminalia (figs. 116, IIY) with tenth tergite (10) transverse; 

 basal projection broadly rounded, extending only halfway beneath 

 ninth tergit-e ; left tergal process (10 LP) very broad basally, gradually 

 narrowed but still broad, distad, inner "talon"' very feeble and short, 

 outer portion angulate on apical margin ; major right process ( 10 RPi) 

 with inner basal angle developed as a smooth broad dome, extreme 

 apex evenl}^ curved outward. Hypandrium (H) quadrate, each 

 corner produced as a narrow, truncate projection; process (HP) sepa- 

 rated from H by a narrow, transverse slit, broad basad, gradually 

 narrowed and losing pigment distad. Left paraproct (LPPT) fused 

 to H at base, very narrow ; apex attaining that of 10 KPi, very strongly 

 acuminated. Left cercus-basipodite (LCB) a heavily sclerotized 

 ring; inner projection sclerotic, with a dorsal pair of short serrations. 

 Basal segment of left cercus (LCi) slightly expanded distad, en- 

 tirely unpigmented. Basal segment of right cercus cylindrical, 

 slightly broadened basad, foramen with angular dorsal and ventral 

 projections on margin; outer apical angle membranous. Terminal 

 segments of both cerci entirely unpigmented. 



Fern ale. — Unknown. 



Holotype.—M.Vi\Q, on slide, U.S.N.M. No. 56583. 



Type data. — Nova Teutonia, Santa Catharina, Brazil (F. Plau- 

 mann). 



Paratypes. — Several males with above data deposited in the Cali- 

 fornia Academy of Sciences, the Museum of Comparative Zoology, 

 and the writer's collection. 



OLIGEMBIA (OLIGEMBIA) MELANUUA, new species 



Figures 118-120 



Mole. — Color (in alcohol): Sclerites very dark chocolate brown; 

 intersclerotal membranes reddish brown. Head with clypeal region. 



