XXXI, '20] ENTOMOLOGICAL NEWS 25 1 



coxae, three-jointed; all the coxae are very much elongate, and the femur 

 of the front legs is thick and heavy with a long ventral tooth provided with 

 an anterior tooth, secondary ventral tooth present; the femoral comb 

 with seven teeth decreasing in size apically; the fore tibia is about as 

 long as the femur, bifid apically; the fore tarsus is long, three-jointed 

 and provided with two sub-equal claws, the median one smaller. The 

 middle and hind legs are nearly equal in size, with the tibia provided with 

 five, stout, black spines at the apex, the tarsi are one-jointed with two 

 very unequal claws at apex, the outer claw about one-half as long as the 

 inner. 



The adult is a medium small cicada with a bright green collar, the costal 

 vein brownish and sub-costa and radius bright green to the bend of the 

 wing and the other main veins of the fore wing green to the cross veins, 

 black beyond. 



The head is black above, with fuscous spots at the inner angles of the 

 eyes and a greenish stripe from the antennal ledges to the eyes, the frontal 

 arcs are fuscous with the interspaces heavily pruinose; the antennae 

 are eight-jointed with the two basal joints heavy, the others flagellate. 



The pronotum is fuscous with narrow anterior border between the 

 eyes and the collar green, two converging black spots continued poster- 

 iorly in a broad triangular black spot bordering the collar. The mesono- 

 tum is mostly black with fuscous markings. Legs yellowish fuscous with 

 the spines and the tips of the tarsi black. 



The abdomen is black above. Beneath, the head, thorax and lateral 

 parts of abdomen are heavily pruinose, the central part of the abdomen 

 lightly so, showing the pale fuscous ground color. The drums are short, 

 broadly, roundly divergent, the uncus is wish-bone shaped with the 

 prongs long, curved and sharp-pointed. 



Length to end of abdomen, male 23 mm; female 24 mm; to tip of 

 wings, male 38 mm; female 41 mm; width of collar 10 mm. 



Previous records indicate a distribution restricted to the 

 Atlantic and Gulf Coasts from North Carolina to Louisiana, 

 but no suggestion of the adaptation to aquatic conditions 

 appears in any record that has come to our notice. 



Explanation of Plate IIL 

 Tibicen viridifascia Walk. 



Fig. I. Dorsal view adult male. XiK. showing characteristic color 



pattern and venation of fore and hind wing. 

 Fig. la. Adult antenna. X15. 

 Fig. lb. Female genitalia ventral view. X2. 

 Fig. ic. Ventral view of male abdomen, showing hind leg, opercula and 



male genitalia. 



