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IOWA. ACADEMY OP SCIENCES. 
PLATE XIII. 
Figure 1. Leg of Aphrophora quadrinotata, Say, showing double row 
of spines. 
Figure 2. Leg of Lepyronia quadrangularis, Say. 
Figure 3. Leg of Clastoptera proteus, B'itch, showing single row of 
spines. 
Figure 4. Side view of C. delicata, Uhl., showing outline of face. 
Oblique dorsal view of same showing inflation of front. 
Figure 5. C. proteas, Pitch, same as above. 
Figure 6. C. xanthocephala, Germ. 
Figure 7. C. ohtasa, Say. 
Figure 8. Venation of hemelytra, C. delicata. 
Figure 9. Same for C. proteus. 
Figure 10. Same for C. xanthocephala, Germ. 
Figure 11. Clastoptera obtusa, Pitch. 
1, 2 and 3; first, second and third apical cells, a and b; first and sec- 
ond discoid cells. 
PLATE XIV. 
Figure 1. Abdomen of Lepyronia quarangularis Say, male, ventral view. 
Figure 2. Female, of same. 
Figure 3. Male, dorsal view. 
Figure 4. Abdomen of Aphrophora parallela, Say, male, ventral view. 
Figure 5. Female, ventral view. 
Figure 6. Same, dorsal view. 
Figure 7. Abdomen of C. obtusa, male, posterior view. 
Figure 8. Female, same view. 
Figure 9. Abdomen of C. xanthocephala. Germ., male, posterior view. 
Figure 10. Female, same view. 
OBSERVATIONS ON THE CICADID.® OP IOWA. 
HERBERT OSBORN. 
The members of this interesting group of insects, which con- 
tains the largest of our native Homoptera, have at least four 
representatives in the state of Iowa and it is the intention to 
call attention to these in this paper and also to put on record 
some observations regarding their habits and distribution which 
may serve as a basis for further investigations concerning 
them. 
Cicada dorsata Say. One specimen of this large species 
n the collection of the Iowa Agricultural College from a student 
who stated that it was taken in Poweshiek county, is the only 
example indicating its occurrence in the state. 
