Illinois Natural History Survey -2~ Identification Notes 2 
Fore wing having only a very narrow membranous margin, 
fig. 33; hind tibia with two or more series of apical 
Bees, MIG ies Me hee te Lye yey. Te tg 83 
3. Lateral margin of pronotum much longer than length of 
eye, greatest width of pronotum at least one-third 
more than that of head across eyes, fige 5... . 
age oe eeted at Waa, (la, 16) 8 is 6 es LOMASDLS 
Lateral margin of pronotum shorter than length of eye, 
greatest width of pronotum never more than slightly 
exceeding that of head across eyes, fige 6... 
le Beak extending to hind coxae, its apical segment at 
least half again as long as the preapical one, fig. 
vf e e e e s e e ° e e s e e ° e e ° e ® Aph roph 0 ra 
Beak not reaching hind coxae, its apical segment much 
less than half again as long as the preapical one, 
figs. 8, 9 e e e e e e e e s a ® e ° e . o e e e 
5. Ridge overhanging antenna on upper front margin of 
head double, with a shallow groove between ridges, 
fige LO ° ° e ° ° e e . cy e ° ° e e e e Philaenus 
Ridge overhanging antenna on upper front margin of 
head single, groove not present . . « . Lepyronia 
Nymphs 
6. Hind tibia with one series of apical spines, fig. 13. 
GURERGTEWUEs fe) gre ec 4 ol Ns ol sw! aoe es CLaBtoptera 
Hind tibia with at least two series of apical spines, 
fige 1h a 6 i e s e e ® . ° e ° e e ° s ° e e e 
{e Apical segment of beak at least half again as-long as 
PreaniCalnone, tile. LO) s < is) ssh eo 6 ApHrophora 
Apical segment of beak much less than half again as 
Lone emer Loney) Lupe iS he verte Tee thie ley 8 
8. Third antennal segment at least half again as long as 
fourth, figs bay | e ° ° ° * e . e ° * °@ x. @ Tomaspis 
Third antennal segment less than half again as long as 
tala Pe OMICY Yar Perle Wem cates, one Mem area a es eee ar send 
9. Subanal plate of abdomen having posterior projections 
which are relatively narrow and sharp, figs. 21, 223 
late last instar nymphs with third segment of adult 
antenna formed beneath nymphal cuticle with sensory 
setae arranged around arista as in fige 23. . .. . 
SU eR Eee) cheat \ret ls (es) is ie ee lb ds a COL LAaGnUS 
