3o HOMOPTERA 



Cicada sonora, Walker. List Horn. Vol. i, p. io5 ^i85o). 



Cicada resonaus, Walker, ibidem, p. 106. 



Fidicina literata. Walker, ibidem, p. gi. 



Cicada marginalis, Walker, ibidem. Vol. 4, p. 1128 (i852). 



Fidicina figurata, Walker. List Horn. Suppl. p. 19 (i858 . 



B. Tegmina more or less spotted towards apical areas. 



41. R. superba. N. America. 



Cicada superba. Fitch, First Rep. Ins. New York, p. 41 | i856i 



42. R. virgtdata. Mexico. 



Rihatia virgulata. Distant, Ann. Mag. Nat. Hist. (7), Vol. 14, p. 426 (1904) ; 

 Biol. Centr.-Amer. Rhynch. Horn. Vol. 1. p. 140, f. (igo5). 



43. R. belizensis. B. Honduras. 



Rihana belizensis, Distant, Pomona College Journ. Ent. (2), Vol. 4, p. 346 

 (1910). 



44. R. szaalei. ? 



Rihana Swalei, Distant. Ann. Mag. Nat. Hist. (7). Vol. 14, p. 427. f. (19041. 



45. R. bakeri. Mexico. 



Rihana bakeri. Distant, Pomona College Journ. Ent. Vol. 3, p. 568 (1911). 



46. R. fusipennis. Jamaica. 



Fidicina fusipcnnis. Walker, Ins. Saund. Horn. p. 8 (i858). 

 Cicada reticularis, Uhler, Trans. Maryl. Acad. Sc. 1 1892), p. 157. 



Species unknown to the compiler 



47. R. ? aurifera. N. America. 



Cicada aurif era, Say, Journ. Acad. Philad. Vol. 4, p. 332 (i825); Uhler, 

 Trans. Maryl. Acad. Sc. (1892), p. i53. 



48. R. ? bilaqueta. Brazil. 



Cicada bilaqueta, Uhler, Trans. Maryl. Acad. Sc. (igo3), p. 7. 



49. R. ? hieroglyphica. N. W. Australia. 



Cicada hieroglyphica, Goding & Froggart, Proc. Linn. Soc. N. S. Wales, 



(1904), p. 58i. 

 Cicada hieroglyphicalis. Kirkaldy. Canad. Ent. Vol. 41, p. 391 (1910). 



25. Genus CICADA, Linn>eus 



Cicada. Linnaeus, Syst. Nat. Vol. 1, p. 434(1758); Amyot & Serville, Hist. Hem. p. 473 (1843); 

 Stal, Ann. Soc. Ent. Fr. (4), Vol. 1, p. 614 (1861); Hem. Afr. Vol. 4, p. 6(1866); Distant (part.) 

 Biol. Centr.-Amer., Rhynch. Horn. Vol. 1, p. 6 (1881); Orient. Cicad. p. 93 (1891 ). 



Subgen. Cicada. Stal (part.), Oefv. Vet.-Akad. Forh. (1870), p. 714, note. 



Subgen. Chremistica. Stal (part.), ibidem. 



Subgen. Diceroprocta. Stal (part.), ibidem. 



Characters. — Head about half as long as space between eyes, or sometimes very slightly 

 longer, moderately truncate in front of eyes ; ocelli more remote from eyes than from each other, eyes 

 more or less oblique and porrect, longer than broad; face not prominent; pronotum shorter than meso- 

 notum including the cruciform elevation, lateral margins not ampliated ; abdomen about as long as 

 space between apex of head and base of cruciform elevation, tympana covered; opercula variable in 

 length; rostrum reaching posterior coxae; tegmina three times or less than three times longer than 

 broad, basal cell longer than broad, apical areas eight; wings more than half as long as tegmina, apical 

 areas six. 



Type. — C. plebeja, Scopoli. 



Geographical distribution of species. — Palaearctic, Ethiopian, Australasian and American 

 regions. 



