498 
The Ohio Naturalist. 
[Vol. VI, No. 6, 
Genitalia, — Last ventral segment of female deeply emarginate, pygo- 
fer with sinuate borders the sides meeting a little in front of apex of ovi- 
jjositor. whole margin pallid, the surface and the tip of sheath hairy. 
Male ventral segment narrowing posteriorly, subtruncate apically 
with about ten close ridges, anal plate about as long as broad, outer por- 
tion flattened, central stripe black, claspers strongly curved back, polished. 
The male agrees closely with the female in size and coloration, the 
opercula are broader than long, curved posteriorly, inner edge not meet- 
ing the hind border, extending only to border of abdominal segment. 
This species is reported by Mr. Newell as depositing eggs to 
such an extent as to cause serious injury to cotton, com and 
some other plants. A detailed account of its habits is given in 
the report of the Association of Economic Entomologists for 
1905. This species has been taken at Shreveport, June 19, ’05, 
and Logtown, La., June 19, 1905. 
I have also in my collection two specimens of males collected 
by Mr. F. W. Mally at Shreveport, La., July 2, 1S91. These 
specimens were determined as possible examples of Cicada ni- 
griventris Walk, but with a larger series of individuals this refer- 
ence seems impossible. Prof. Uhler has kindly compared with 
his sordidata and agrees with me that it cannot be referred to that 
species. Seven males and three females. 
Cicada delicata n. sp. 
Similar to pallida i istarit, but differing in elytral marking and in 
coloration, length to ti]j of abdomen, IS mm., to tip of elytra, 27 mm., 
width of head and eyes, 8 mm. 
Head including eyes nearly as wide as widest point on pronotum. head 
j^roduced anteriorly, the front with abcut nine transverse ridges each side. 
Pronotum with narrow marginal carina expanding slightly into the 
posterior angle. ( r< ss veins of elytra quite oblique and deeply infus- 
cated. 
Cckr, — Light green, es] ecially ] renounced on front; legs, except 
tarsi, hinder margin cf pronotum, basal portion of elytral veins, vertex, 
hinder p c rti( n of j rone turn and disc of mesc-thcrax, O] crcula and ab- 
domen below cchery-yellow, dersum of abdomen tinged with testaceous. 
A transverse irregular band ] reduced backwardly to c ceij ut and includ- 
ing the rc’ddish c celli and dc rsa! | ' rtic n of fre nt and eyes, Irlack. The 
anterior j c rtion of ■[ rone turn is marked with two spots extending from 
the black margins of the vertex. The antcric r ] art of mescthcrax in- 
cludes four cuneitV rm black spots, tie cuter portion is also infuscated 
becoming a fairly o' istii ct black pcstcricrly and there are two distinct 
black points just in fn lU c f the elevatod x c f the scutellum. Th.e tipr of 
the rostrum and claws cf taisi and sj ints of hind tibia- are blackened but 
otherwise under pc rtion is ] allid. 
Genitalia, — Last ventral segment cf female rather she rt. shallowly 
emarginate hehinrl with shallow rounded nc tch at centre and bare cal- 
lous spot each side, ] ygofer she rt, be rders barely meeting beneath, a 
she rt sharj) S] ine dc isally. i\,ale ventral segment narrcAved abruptly 
behind, a] ex slightly conve.x, a few transverse furrows, anal plate nar- 
rowed, herders stre ugly reflexed, apex obtusely pointed, claspers short 
and blunt. Male is very similar to female in size and coloration, the 
opercles Irroad, sinuate laterally, reaching second abdc min.'ll segment 
])Csteriorly, inner margins narrowly trnichin>' 
