194 HOMOPTERA 



tectiform, gradually acuminate, tip reaciiing beyond the internal angles of the tegmina; scutellum entirely 

 concealed. Tegmina hyaline; base narrowly coriaceous and punctate ; veins very strong; five or six 

 apical and two discoidal cells; exterior discoidal cell sessile and truncate at base; apical hmbus narrow. 

 Legs simple; femora cylindrical; tibiae triquerate and finely spined; hind tarsi longest. 



Type rubripes Goding. 



Geographical distribution : This genus is known only from the type species from Jamaica. 



I. rubripes Goding, Journ. N. Y. Ent. Soc. XXXV : 2. 169 (1927). Jamaica. 



— Pl. 10, fig. 160. 



TRIBES OF THE OLD WORLD CENTROTINiE 



I. Pronotiim with a posterior process 



A. Tibia and head nol dilated; scutellum usually visible 



1 . Pronotum with suprahumeral horns 



a. Hind witigs with three apical cells Centrotini Distant. 



aa. Hind wings with four apical cells 

 b . Sides of mesouotum bearing teeth 



c Pronotumbearing a single high process Hypsauchenini Distant. 



cc. Pronotum with two horns Centrocharesini Goding. 



bb. Sides of mesonoium unarmed 



c. Pronotum elevated in a high erect process . . . . . . MiCREUNiNi Distant. 



cc Pronotum withoiit a high median process Leptocentrini Distant. 



2. Pronotiim without suprahumeral horus 

 a. Hind wings with three apical cells 



b. Sides of mesonotum bearing teeth Coccosterphini Goding. 



bb. Sides of mesojiotum unarmed Gargarini Distant. 



aa. H ind wings with four apical cells Uroxiphini Goding. 



B. Front tihia and head more or less foliaceous; scutellum present but often 



concealed Oxyrhachisini Distant. 



II. Pronotum wiihout a posterior process Darthulini Tribus nov. 



GENERA OF THE TRIBE CENTROTINI DISTANT 



I. Base of poslerior process not tonching scutellum 

 A. Poslerior process not angulate at base 



1 . Posterior process with inferior lobe Centrotus Fabricius. 



2 . Posterior process without a lobe beneath 



a. Posffiir iroress ctirved at base, then siraight to apex 



b. Ti^nuua wilh two discoidal cells Tricoceps Buckton. 



bb. 1'fgmina iuilh four discoidal cells Centrotusoides Distant. 



aa. Posti rior process sinnate 



