CICADELLINAE: PART 2. NEW WORLD CICADELLINI 219 
2. Forewing with outer three apical cells mostly black, narrowly pale api- 
eee oe AOA a distinguenda (Fowler) (fig. 176) 
Forewing with outer three apical cells orange-yellow, not marked with 
er mnreeseM Sic) tacts. 1S in ees aL OAs eR oe OTE: 3 
3. With a third broad transverse black band including posterior portion of 
crown and anterior portion of pronotum; anterior tibiae pale yellow or 
Me o-oo eee esi gti aii iepetemae erupta (Melichar) (fig. 177) 
With only two transverse black bands neither of which includes posterior 
margin of crown; anterior tibiae black ...... taeniata (Fowler) (fig. 178) 
27. XENOGONALIA, NEw GENus 
Figure 179 
Type-species: Cicadella longicornis Osborn (1926b:183). 
Length of male 14.9-15.0 mm. 
Head well produced, truncate apically in dorsal view, median length of 
crown slightly less than six-tenths interocular width and from four-tenths to 
slightly more than four-tenths transocular width, anterolateral margins 
broadly convex, without a carina at transition from crown to face, ocelli in 
line with anterior eye angles, each equidistant from median line and adjacent 
anterior eye angle, crown with a transverse concavity before ocelli, surface 
without sculpturing or setae, lateral clypeal sutures extending onto crown and 
attaining ocelli; antennal ledges slightly protuberant, in lateral view with an- 
terior margins oblique and convex; clypeus strongly convex, slightly flattened 
ee a 
— 
£ y 
e 
Cc 
oe Soe | rf 
FIGURE 179.—Xenogonalia longicornis (Osborn), holotype; p, Male pygofer apex, 
right side, from ventral view. 

Vy yy 

