EMBIO'PTERA OF THE NEW WO'RL.D ROSS 469 



ated by an interspace two and one-half eye widths wide; sides slightly 

 arcuate and gradually convergent, posterior margin evenly rounded; 

 submentum very large, dark, sides arcuate, abruptly so mesad, anterior 

 margin broader than posterior, shallowly incurved. Mandibles with 

 the basal tooth, of the three apical dentations, of the right mandible, 

 larger; left mandible Avith the two apical teeth close together; both 

 mandibles with medial angles rounded, strongly constricted behind 

 middle. 



Wings without specific peculiarities; fringe as in darling foni. 



Terminalia (figs. 109, 110) with tenth tergite (10) very short, trans- 

 verse; basal projection short, broadly rounded, extending just beyond 

 middle of 9, reduced on right side and notched to right of middle. 

 Left process (10 LP) constricted basad, expanded distad, outer side 

 arcuate; apical margin shallowly, broadly emarginated; dorsal sur- 

 face with a fine, diagonal carina extending from outer apical angle 

 toward base of inner margin. Right process (10 RPi) reduced, inner 

 margin membranous, apex curved caudad and with a minute bulbous 

 tip. Secondary process (lORPo) dark, sclerotic. Hypandrium (H) 

 pigmented throughout; its process (HP) small, strongly narrowed 

 caudad, semidetached basally. Left paraproct (LPPT) fused on 

 inner basal side to HP, very narrow, elongate, tip almost attaining 

 that of 10 RPi. Left cercus-basipodite (LCB) a dark sclerotic ring 

 fused to LCi, with two projections in outline of ventral margin ; pro- 

 duced mesocaudad as a conical lobe. Basal segment of left cercus 

 (LCi) robust, immediately swollen behind LCB on inner side. Basal 

 segment of right cercus cylindrical, not apically swollen, margin of 

 foramen irregular. Terminal segments of both cerci similar, tapered 

 distally, almost unpigmented. 



Female. — Unknown. 



Holotype.—M^Ae. on slide, U.S.N.M. No. 56584. 



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

 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) UNICOLOR, new species 



FiGUEES 115-117 



Male (in alcohol). — Mahogany brown throughout, abdomen some- 

 what lighter, head darker ; antennae with two basal segments brown, 

 six succeeding segments light yellow, remainder medium brown ; cerci 

 with terminal segments pale. Length 5.0 mm.; forewing length 3.2 

 mm., breadth 0.9 mm. 



