LEAFHOPPER SUBFAMILY NEOCOELIDIINAE — KRAMER 263 



by a complete fusion of the normally paired plates. Other mutually 

 shared characters are the comparatively simple pygofers distinguished 

 by a single ventral hook or tooth and the pair of slender simple proc- 

 esses at the base of the anal tube. In all of them the aedeagus consists 

 of two shafts which are arranged one above the other with the dorsal 

 shaft bearing the gonoduct. The connective is uniformly Y-shaped 

 and the styles are basically alike. 



DeLong's separation of Stenocoelidia and Eurycoelidia from Neo- 

 coelidia on the basis of elongate and slender forms versus short and 

 robust forms holds for some of the species, but others cannot be 

 separated on this basis because of their intermediate condition. 

 Paracoelidea, although striking because of the tuberculate clypellus, 

 is considered here as a group within Neocoelidia because of the 

 similarities in male genitalia. 



The genus Neocoelidia is primarily North and Central American 

 but a few species range into northern South America. Knull (1942) 

 has reviewed the North American species, providing a key based 

 largely on color and size. DeLong (1953) described many new 

 species primarily from Mexico and Central America; and although 

 he provided no key, his illustrations of the pygofers and aedeagi are 

 highly adequate for species recognition. 



Three species of Neocoelidia, the types of which have not been 

 studied since their original description, are discussed here. 



Neocoelidia fuscodorsata (Fowler), new combination 



Figures 25-28 



Tettigonia fuscodorsata Fowler 1900, p. 269, tab. 18, fig. 6. 

 Stenocoelidia fuscodorsata (Fowler), DeLong 1953, p. 121. 

 Stenocoelidia clara DeLong 1953, p. 104, new synonymy. 



Fowler described T. fuscodorsata from a long series of specimens 

 collected at several localities in Mexico and Guatemala. DeLong 

 assumed that Fowler's series included more than one species, which 

 is probably true, but he studied no type material. Through the 

 cooperation of Dr. W. E. China and the British Museum (Natural 

 History), three of Fowler's syntypes, one male and two females, 

 were made available for study. The male with data " Teapa, Tabasco, 

 Mexico" is hereby designated as the lectotype. A comparison of 

 this lectotype and the type of S. clara DeLong show that these are 

 conspecific. The colored illustration of T. fuscodorsata which 

 appeared with Fowler's description is not diagnostic for the species. 

 The general coloration is as figured, with the following modification: 

 distinct black spot at apex of crown and near each basal angle of 

 scutellum; apical spot fused with dorsal stripe whereas spots on scutel- 

 lum free. The male genitaha are shown in figures 25-28. 



