Mr. W, L. Distant on Homoptera. 23 



Tihicina chinensi's, sp. n. 



? . Body and legs black, somewJiat thickly greyishly 

 pilose; lateral niaigins of face, longitudinal fascias to femora, 

 apical areas of tibige, margins of acetabulse, apices of coxte, 

 abdominal segmental margins beneath, and tiie same confined 

 to lateral areas above, testaceous; a central, basal, indented 

 spot to head, two central longitudinal spots to pronotum, two 

 discal spots to mesonotum, and the cruciform elevation (ex- 

 cluding centre) dull ochraceous; tegmiua and wings hyaline, 

 tlieir extreme bases testaceou'^, venation fuscous, tegmina 

 with the costal membrane testaceous, the claval area san- 

 guineous ; wings with the claval area and margins of anal 

 area fuscous ; head about as broad as base of mesonotum ; 

 lateral pronotal margins distinctly concavely sinuate; rostrum 

 reaching the intermediate coxa3. 



Long., excl. tegm., ? 25 mm. ; exp. tegm. 62 mm. 



-Hab. N. China : Ta-chien-lu (Brit. Mus.). 



'i'his description is based on two female specimens ; in one 

 the transverse veins at the bases of second and third apical 

 areas to tegmina are slightly inf'uscated, in the second 

 specimen they are not. 



Okanagana, gen. nov. 



Head (including eyes) considerably narrower than base of 

 mesonotum and almost equal to its length (including cruci- 

 form elevation) ; front shorter than vertex, its apex more or 

 less emarginate, vertex centrally sulcate ; pronotum about as 

 long as head, its anterior angles in a line with eyes, its poste- 

 rior angles dilated ; abdomen in male longer, in female about 

 as long as space between apex of head and base of cruciform 

 elevation ; tympana completely exposed, tympanal coverings 

 entirely absent ; face more or less centrally sulcate ; rostrum 

 reaching the intermediate coxae ; opercula small, transverse ; 

 abdomen beneath with the lateral margins broadly recurved ; 

 tegmina and wings hyaline; tegmina with the basal cell, 

 about or almost twice as long as broad, apical areas eight ; 

 wings with six apical areas. 



Type, 0. rimosa, Say (Cicada). 



Ahomana, gen. nov. 



Head (including eyes) considerably narrower than base of 

 mesonotum and about equalling its length (including cruciform 

 elevation), front of head slightly shorter than vertex, its apex 

 nut emarginate ; pronotum about as long as head, its lateral 



