FAM. C1CADID.E 2 5 



Cicada tympanum, Germar, in Silb. Rev. Ent. Vol. 2, p. 69, f- 22 (1834) ; . 

 Perty, Del. Anim. Art. p. 176, t. 35, f. 1 (i83o-34) ; Blanchard, Hist. 

 Ins. Vol. 3, ]). 167, Hem. t. 10, f. 1 (1840). 



2. Z. smaragdina. N. Neotropical Region. 



Zammara smaragdina. Walker. List. Horn. Vol. 1, p 33(i85o); loc. cit. 



Vol. 4, t. 1, f. 4 (i852); Distant, Biol. Centr.-Amer. Rhynch. Horn. 



Vol. 1, p. 3. t. 1, f. la, b (1881). 

 Zammara angulosa, Walker, List Horn. Vol 1. p. 34 (i85o). 



3. Z. calochroma. N. Neotropical Region. 



Zammara calochroma, Walker, List Horn. Suppl. p. 4 (iS58) (Distant. Biol. 



Centr.-Amer. Rhynch. Horn. Vol. 1, p. 3, t. 1, f. 5a, b (1881). 

 Zammara smaragdula, Walker, Ins. Saund. Horn. p. 4 (i858). 

 Zammara callichroma. Stal, Stett. Ent. Zeit. Vol. 25, p. 57 (1864). 



4. Z. strcpens. Brazil. 



Zammara strcpens, Amyot & Serville, Hist. Hem. p. 469 (1843). 



Cicada tympanum, Palisot de Beauvois, Ins. Hem. p. i32, t.20, f. 5 (i8o5-2i). 



5. Z. intricata. — PI. 2, Figs. 26a, b. Gua3'aquil. 



Zammara intricata, Walker, List Horn. Vol. 1. p. 35 (i85o); Jacobi, Horn. 

 Andina, Pt. 1, p. 12, f. 11 (1907). 



B. Tegmina unspotted. 



6. Z. lucidenta. ? 



Zammara luculenla. Distant, Proc. Zool. Soc. Lond. (iS83), p. 187, t. 25, 

 f. 4.7, b. 



7. Z. eximia. British Guiana. 



Cicada (Zammara) eximia, Erichson, in Schomb. Reise, p. 616 (184S). 



77. Genus ORELLANA, Distant 



Orellana. Distant, Ann. Mag. Nat. Hist. (7), Vol. i5, p. 38i (190.5). 



Characters. — Head (including eyes) 011I3- two thirds the width at base of mesonotum, its length 

 about equal to that of pronotum, vertex nearly twice the length of front; pronotum about twice as broad 

 as long, its lateral margins broadly ampliated and medially angulate; mesonotum a little longer than 

 pronotum and (including basal cruciform elevation) about as long as pronotum and head together; 

 abdomen short, broad, about as long or sometimes shorter than space between apex of head and base of 

 cruciform elevation ; tympanal coverings outwardly complete and covering lateral areas, but the orifices 

 widely exposed internally; opercula in male small, transverse, not passing base of abdomen; face 

 broader than the space between it and eyes ; tegmina and wings hyaline, more or less maculate ; tegmina 

 with eight apical areas; tarsi two-jointed. 



Type. — 0. Columbia, Distant. 



Geographical distribution of species. — Neotropical Region. 



1. 0. Columbia. Columbia. 



Zammara Columbia, Distant, Trans. Ent. Soc. Lond. (1881!, p. 628; 

 Waterhouse, Aid Ident. Ins. Vol. 2, t. 128. f. 1. 



2. O. nigriplaga. Antigua, Ecuador 



Zammara nigriplaga, Walker, List Horn. Suppl. p. 4 (i858) ; Jacobi, Horn. 

 Andina. Pt. 1, p. i3, f. 12 (1907). 



3. 0. brevis. — PI. 3, Figs. 27a, b. Colombia. 



Orellana brevis. Distant, Ann. Mag. Nat. Hist. (7), Vol. i5, p. 382 (igo5). 

 Zammara brevis, Jacobi, Horn. Andina, Pt. 1, p. i3, f. i3 (1907). 



