600 N. C. AGR. EXP. STA. BUL. 239 
SPECIES OF PLESIOMMATA 
alcorn Beamer, 1953a:65. Mexico. 
cornculata, n. sp. Mexico, Costa Rica, Panama, Colombia, Trinidad Is., Grenada 
(B. W. I.), Venezuela, Br. and D. Guiana to Bolivia, Paraguay, and S. Brazil. 
mollicella (Fowler), 1900d:289 ( Tettigonia). Mexico, Br. Honduras, Guatemala, Costa 
Rica, Panama, Colombia, Venezuela, Fr. Guiana, Ecuador, Bolivia, S. and 
SE. Brazil, Paraguay, Argentina. 
mollicula (Fowler), 1900d:288 ( Tettigonia), Arizona, Mexico, El Salvador. 
tripunctata (Fitch), 1851a:55 ( Tettigonia). E. North America. 
biundulata Provancher, 1889a:264. 
KEY TO MALES OF PLESIOMMATA 
1. Crown of head with median black spot behind apex ................... 2 
Crown with an apical black spot but no median spot behind it ......... 3 
2. Aedeagal shaft in lateral view with a dorsal expansion on each side near 
TINCT ie outta»: a es Se a ee ee mollicella (Fowler) (fig. 487) 
Aedeagal shaft infundibulate, without an expansion at midlength 
corniculata, n. sp., page 601 
3. Crown acutangularly produced, with a broad black area around each 
ocellus (North America)h?w. )..2- 7. 2.8. eee tripunctata (Fitch) (fig. 489) 
Crown more broadly rounded, or without broad black area around each 
OGETIUS i. 16'5.2a:0 sgPage nally swe hie we /noe wikis gta es Ske gE yy 4 
4. Forewing with area between branches of R brown, dorsal aedeagal apo- 
deme joined to tergum IX behind base of latter, aedeagal shaft narrow- 
erin caudoventral#viewes, *: arte sic.s anne fee alcornt Beamer (fig. 490) 
Forewing with area between branches of R not so, dorsal aedeagal apo- 
deme joined to tergum IX at base of latter, aedeagal shaft broader in 
caudoventral View). < ic aks Oe ch a eee mollicula (Fowler) (fig. 491) 
FIGURE 492,—Plesiommata sp. (from specimen from British Honduras). 
