EMBT'OPTERA OF THE NEW WO'RLD ROSS 439 



Wings light b^o^Yn, hyaline stripes very narrow, sharply defined. 

 Ki narrow, paralleling costa but merging with it apically. One or 

 two cross veins present between Ei and Ro+s, one between Eo+s and 

 K4+5. Venation otherwise without peculiarities. 



Terminalia (fig. 65, 66) with tenth tergite large, quadrate, simple; 

 submedian cleft slightly to left of middle, terminating just within 

 basal half; left process (10 LP) rather broad, parallel-sided, thin, 

 simple, directed caudad but curved upward distad, abruptly pointed 

 at apex; right hemitergite (10 R) large, its major process (10 EPi) 

 abruptly produced at inner apical angle, parallel-sided, sclerotic, 

 slightly curved downward distad, apex slightly expanded, truncate, 

 and slanted mesad; secondary process (10 RPo) very narrow, parallel- 

 ing, and lying partially beneath, inner margin of 10 E. Ninth 

 sternite (H) quadrate, right apical area submembranous ; process 

 (HP) short, truncate, wrinkled, submembranous on right side basally. 

 Composite left cercus-basipodite and left paraproct (LCB + LPPT) 

 prominent, darkly pigmented, elongate, fused basally with H; com- 

 posite ECB and EPPT equally prominent but of a different shape. 

 Basal segment of left cercus (LCi) cylindrical basally abruptly ex- 

 panded distally on inner side to form a prominent, sparsely echinu- 

 late lobe; terminal segment of left cercus normal. Basal segment 

 of right cercus simple, cylindrical, slightly swollen distad; basal 

 foramen circular, simple; terminal segment similar to that of LC. 



Female. — Unknown. 



Eolotype.—Male, on slide, U. S. N. M. No. 56581. 



Ty2?e data. — Nova Teutonia, Santa Catharina, Brazil (F. Plau- 

 mann). 



Paratypes. — Two males, on slides, with holotype data ; one deposited 

 in the writer's collection, the other in the California Academy of 

 Sciences. 



Remarks. — This distinct species is the most southern and one of 

 the most generalized of the family. Its characters, except for the 

 echinulate lobe of the left cercus, are very similar to those of Saussur- 

 emhia rwficoHis (Saussure). 



MESEMBIA HOSPES (Myers) 



Oligotoma Iwspcs Myers, 1928, p. 89, fig. 1. 



Mesembia hospes (Myers) Ross, 1940a, p. 12.— Davis, 1940d, p. 532, figs. 20-23.— 

 Ross, 1940b, p. 644, figs. 14-16. 



Holotype. — Winged male, in Museum of Comparative Zoolog}' 

 (type No. 523). 



Type data. — Soledad, Santa Clara, Cuba, February 10, 1925 (J. G. 

 Myers). 



Other records. — Paratypes with same data. 



