CICADELLrNAE : PART I. PROCONIINI 63 



Female sternum VII narrow and triangular in the single species in 

 which the female is known {Ai. curuna, new species) . 



Specimens belonging to this genus have been examined from Panama, 

 French Guiana, Ecuador, and Peru. The genus Mareba is closely- 

 related to Proconobola, new genus, from which it can be distinguished 

 by the peculiar form of its male plates, its smooth forewings, and its 

 regularly slanted face. 



A specimen of the undescribed species upon which Melichar appar- 

 ently intended to base Anchura has been examined in HNHM. It falls 

 within the present concept of Mareba. 



Except for the aedeagus, illustrated in figure 48f, the male genital 

 characters of the lectotype of M. eresia Distant are like those illustrated 

 for M. panamensis, new species. 



SPECIES OF MAREBA 



curuna, new species. Fr. Guiana. 



eresia Distant, 1908b: 7 7. Ecuador. 



guerini (Signoret), I855a:51 {Tettigonia). Fr. Guiana. New combination. 



panamenis, new species. Panama. 



KEY TO MALES OF MAREBA 



1. Aedeagal shaft very much shorter than processes 2 



Aedeagal shaft almost as long as processes. 



M. curuna, new species 



2. Aedeagus with three processes arising from base. 



M. guerini (Signoret) (fig. 49) 

 Aedeagal shaft with only two processes arising from base ... 3 



3. Aedeagal shaft rounded at apex. . . . M. eresia Distant (fig. 48) 

 Aedeagal shaft emarginate apically. 



M. panamensis, new species (p. 64) 



Mareba curuna, new species 

 Figure 50 



Length of male 11.5 mm.; of female 12-13 mm. A species with a 

 wrinkled appearance dorsally. Head with median length approxi- 

 mately equal to transocular \vidth, with a distinct posterior M -shaped 

 elevation. Forewings with shallow pits in clavus and veins fairly 

 distinct. Male pygofer with posterior margin very broadly truncate, 

 lower margin horizontal; plates in ventral aspect subacute apically, in 

 lateral aspect extending farther posteriorly than apex of pygofer; each 

 style with a broad apical expansion which is extended laterally and 

 rounded; aedeagal shaft extending almost as far posteriorly as the 

 conspicuous paired lateral processes each of which is branched apically. 



