DESCRIPTION OF A NEW SPECIES OF CICADIDiE 



BY W. L. DISTANT. 

 LONIX)N, ENGLAND. 



The species of Rihanu on whicli this description is based was collected 

 near the city of Belize, in British Honduras, by Mr. James D. Johnson. It is 

 a very well marked and beautifvd form belonging to a section of the genus 

 of which we have, more than probably, not seen the whole of its representa- 

 tives in Central America. Specimens of this new species are to be found 

 in mv collection and in that of Pomona College. 



Family CICADID^. 

 Subfamily cicadina. 

 Genus Riliana Distant. 

 Rihana Dist. Ann. Mag. Nat. Dist. (7) XIV p. 42fi (1904). 

 Type R. ocliracca Walk. 



Rihana belizensis sp. tiuv. 



Piody above pale olivaceous-green, vertex with four large longitudinal 

 black spots, one at inner margin of each eye and two central and contiguous 

 enclosing the ocelli, front with transverse black lines on each lateral area : 

 pronotum with two central black lines united at base, widened anteriorly 

 and not quite reaching anterior margin, on each side of these a discal curved 

 black line and the incisures black ; mesonotum with two obconical black s])ots 

 outwardly margined with castaneous at anterior margin, a larger obconical 

 spot on each lateral area of broken and .suffused coloration, castaneous with 

 irregular black macular markings, a cruciform black spot near base, with a 

 small rounded black spot on each side and a black spot on the anterior angles 

 of the basal cruciform elevation ; abdomen above with two black spots at base 

 and a transverse black fascia on each of the abdominal segments ; body beneath 

 and legs ochraceous, more or less cretaceously tomentose, the sternum more 

 densely so, the abdomen beneath with the posterior margins of the ventral 

 segments pale olivaceous-green, their basal and lateral margins cretaceously 

 tomentose ; apex of rostrum and the tarsi black ; tegmina and wings hyaline, 

 the veins mostly brownish ochraceous ; tegmina with the costal membrane 

 olivaceous-green, the apices of the three upper ulnar areas, the ajiex of the 

 postcostal membrane, and three apical longitudinal spots, fuscous-brown : wings 

 with the margins of the abdominal area narrowly fuscous brown. 



Female. Tegmina long and slender, about three times longer tiian their 

 greatest breadth, length of head more than half the breadth of space between 

 eyes ; opercula oblique, their inner angles distinctly separated, their posterior 

 margins scarcely extending beyond the base of the abdomen ; rostrum reach- 

 ing the posterior cox?e ; anterior femora with two strong black spines be- 

 neath, one near base, the other near apex. 



Length exclusive of tegmina. female, 2?i mm. Expanse of tegmina 73 mm 



Habitat: British Honduras; Belize (Johnson). 



Somewhat allied to the Mexican species R. 't'irgulata Dist. 



