698 N. C. AGR. EXP. STA. BUL. 239 
towards apex (exceptions: praevia (Melichar) and pileata (Fowler)), the 
primary teeth bearing minute secondaries, valvular apices acute, with minute 
anteapical dorsal denticles. Pygofer with a number of macrosetae near dorsal 
margin and parallel to posteroventral margin. 
Specimens of Stbovia are mostly green to yellowish with antennae unusually 
long for the tribe, with paired, usually convergent, black stripes on the crown. 
Specimens have been studied from localities from southern U.S.A. to southern 
Brazil and northern Argentina. Sibovia is the first genus treated here in the 
Erythrogonia generic group (genera 92-114, see p. 770). Although I have not 
been able to relate it closely to other genera of the group, it is placed here 
mainly because of the similarity of the female genital structures to those of 
some other genera of the group. The male genitalia are similar to those of 
Cyclogonia, in the Juliaca generic group but the anterior dorsum is more slen- 
der, and the inner anteapical cell is closed basally in Szbovza. 
I have seen specimens of S. compta (Fowler) which were collected on 
Eupatorium adenophorum Sprengel in Cuernavaca, Mexico, and other specimens 
collected on alfalfa in Puebla, Mexico by R. C. Bechtel and E. I. Schlinger. | 
As stated below, S. nelsoni, n. sp., has been collected on Phaseolus vulgaris L. in 
Costa Rica, and in a potato field (Paul H. and George F. Freytag). S. festana, 
n. sp., has been collected on grass, and on legumes in Colombia, and on 

FIGURES 567, 568.—567, Sibovia composita (Fowler) (1 from holotype; remainder 
from Yepocapa, Guatemala): p, Aedeagal apex, from caudal view. 568, S. 
sororia (Fowler), from specimen from Cuernavaca, Mexico. 
