EMBIO'PTERA OF THE ISTEW WOiRLD ^ROSS 457 



sides behind eyes slightly more than one eye length long, gradually 

 convergent; caudal margin abruptly, evenly rounded laterad, feebly 

 arcuate medially. Occipital foramen elongate, rounded anteriorly; 

 gular bridge as wide as submentum. Submentum small, narrow be- 

 hind; sides divergent, arcuate; anterior margin transverse, anterior 

 angles rounded. 



Wings: Fork of Es well within basal half in forewing, at basal 

 third in hindwing; fork of E4+5 within basal half in forewing, at 

 basal third in hind. About six C-Ri cross veins and six Ri-R.+s cross 

 veins in forewing; cross veins absent elsewhere. Hyaline stripes 

 narrow, sharply defined. 



Terminalia (figs. 96, 97) with basal projection of tenth tergite acute, 

 extending to base of eighth tergite ; tenth tergite diagonally divided 

 on right side to form two very unequal hemitergites (10 L and 10 R), 

 the cleft narrow, irregular, somewhat sclerotized distad; left tergal 

 process (10 LP) broad, inner margin produced caudad as a stout, 

 feebly curved talon, outer margin straight, apical margin angulate; 

 major right tergal process (10 RPi) with outer side continuous with 

 10 R, inner base separated by a circular membranous area, inner apical 

 angle sclerotic and sharply produced. Hypandrium (H) quadrate, 

 sides rounded, gradually, broadly produced caudad ; this process (HP) 

 truncate apically, left margin sclerotic. Left paraproct (LPPT) 

 subobsolete, represented by sclerotic margin of HP and a submem- 

 branous apical sclerotization. Left cercus-basipodite (LCB) con- 

 tinuous with left cercus, ventrally produced on margin as two irregular 

 projections; developed mesad as a lobe, which is gradually narrowed 

 dorsad and bifurcate. Left cercus with basal segment (LCi) dark, 

 cylindrical basally but gradually expanded distad and greatly pro- 

 duced inward as a pointed lobe almost as long as LCi. Terminal 

 segment of left cercus elongate, cylindrical. Basal segment of right 

 cercus, gradually broadened basad; foramen irregular; terminal 

 segment similar to that of left cercus. 



Female. — Unknown. 



Holotype.—MiAe, on slide, U. S. N. M. No. 56582. 



Type data. — Nova Teutonia, Santa Catharina, Brazil (F. Plaumann). 



Parahjpes.— Four males with tj^pe data, deposited in the California 

 Academy of Sciences, the Museum of Comparative Zoology, and the 

 writer's collection. 



Remarks. — This distinct species is readily recognized by its greatly 

 produced left cercus. The circular membranous area at the base of 

 the right tergal process suggests that the completely severed process 

 of Oligemhia is attained by an extension of this area to the right 

 lateral margin. 



