262 PROCEEDINGS OF THE NATIONAL MUSEUM vol. us 



13. Cercopidlike species (fig. 114); forewing venation distinct; aedeagus simple 



or with long lateral processes Biza Walker 



Not cercopidlike species; forewing venation obscure; aedeagus simple or 

 with apical processes 14 



14. Aedeagus slender, with paired apical processes; male plates with long mac- 



rosetae (figs. 80, 78) Nelidina DeLong 



Aedeagus not particularly slender, without apical processes; male plates 

 without macrosetae (figs. 95, 98) Coelidiana Oman 



15. All veins of forewings brown and distinct; male plates with macrosetae 



(figs. 88, 89) Coelella DeLong 



Most veins of forewings yellowish and highly obscure; male plates without 

 macrosetae (figs. 81, 85) Neocoelidiana DeLong 



Neocoelidia Gillette and Baker 



Figures 1-35 



Neocoelidia Gillette and Baker 1895, p. 103. Type of genus Neocoelidia tumidi- 



frons Gillette and Baker by original designation. 

 Paracoelidea Baker 1898, p. 292. Type of genus Paracoelidea tuherculata Baker 



by original designation. New synonymy. 

 Stenocoelidia DeLong 1953, p. 104. Type of genus Stenocoelidia virgata DeLong 



by original designation. New synonymy. 

 Stenocoelidia subgenus Eurycoelidia DeLong 1953, p. 112. Type of subgenus 



Neocoelidia pulchella Ball by original designation. New synonymy. 



Description. — Carina separating face and crown distinct, weakly 

 developed, or absent. Shape of crown in dorsal view highly variable, 

 extremes with anterior margin broadly rounded to sharply angular, 

 nearly always longer at middle than next to eye. OceUi occur on 

 anterior margin of crown. Head including eyes usually narrower 

 than pronotum, which is more or less indented on posterior margin. 

 Antennae from about half to three-fourths total length of body 

 including forewings. Venation of forewings highly obscure, except 

 apically, in most species. 



Ground color ivory white to yellow. Often with spot at apex of 

 crown and pair of dark spots on scutellum. Many with dorsal stripe 

 from apex of crown to distal portion of forewings. Species rarely 

 immaculate. 



Male genitaha as discussed below. 



Discussion. — The reduction of Paracoelidea, Stenocoelidia, and 

 Eurycoelidia to synonymy under Neocoelidia is based upon the consist- 

 ently uniform pattern of the male genitalia and the lack of sharply de- 

 fined limits in gross characters between the groups as previously 

 defined. 



Attention is called to the following drawings for the pm'poses of 

 the discussion: N. tumidifrons (figs. 1-6), A^. tuherculata (figs. 7-13), 

 N. virgata (figs. 14-16), and A^. pulchella (figs. 17-24). The male 

 genitalia of these various type-species show that in all cases the 

 venter of the capsule is covered by a single plate presumably formed 



