LEAFHOPPER SUBFAMILY NEOCOELIDIINAE — KRAMER 275 



pi'onotum. Antennae from half to nearly equal length of body includ- 

 ing forewings. Posterior margin of pronotum broadly and usually 

 sharply indented. Venation of forewings highly obscure except 

 apically. 



Ground color stramineous to yellow. Head, pronotum, and scutel- 

 lum immaculate or with distinct or inconspicuous yellow-to-red 

 markings in form of longitudinal and/or lateral stripes. Apex of 

 crown without black spot. Forewings varying from concolorous to 

 moderately heavily marked with dark brown or black. 



Male genitaha: Valve lacking. Male plates fused basally and 

 often for nearly entire length. Pygofer in lateral view quite variable, 

 no true dorsal process, but either terminating with spine of variable 

 length and development or simple; ventral margin with hook or hooks, 

 long apical spine or simple. Anal tube with paired ventral hooks or 

 none. Connective Y-shaped. Style in lateral view strongly hooked 

 apically. Aedeagus simple, slender, or moderately stout, and up- 

 turned at apex. 



Discussion. — The male genitalia of Coelidiana rubrolineata (Baker) 

 and Coelidiana unipuncta (DeLong) are illustrated in figure 99 and 

 figures 100-107. Members of Coelidiana, as here defined, range 

 from southern Mexico to Brazil. DeLong (1953) treated seven 

 members of this group. C. undata (Linnavuori) was transferred to 

 this genus by Kramer (1959). 



Two species of Coelidiana, the types of which have not been studied 

 since their original description, are discussed below. 



Coelidiana coronata (Ball), new combination 



Neocoelidia coronata Ball 1916, p. 208. 



This rather long-crowned species described by Ball was based upon 

 a unique female from Guatemala. Its generic placement wUl not be 

 certain until males are available for study. The red markings of 

 the dorsum are quite similar to some other Coelidiana. 



Coelidiana croceata (Osborn), new combination 



Figures 94-98 

 Neocoelidia croceata Osborn 1923, p. 78. 



This Brazilian species is very close to the type-species, C. rubro- 

 lineata, also from Brazil. The only characters that will successfully 

 allow differentiation are found in the aedeagus. In C. croceata the 

 aedeagus is crenulated ventrally and narrowed apically (fig. 95), 

 whereas in C. rubrolineata the aedeagus is smooth ventrally and 

 broad apically (fig. 99). The drawings of C. croceata male genitalia 

 (figs. 94-98) are based upon the allotype, which is in the Carnegie 

 Museum, Pittsburgh, Pennsylvania. 



