io8 HOMOPTERA 



bb. Costal margin of tegmina hyalitu Antianthe Fowler. 



aa. Humeral augles weak; not strongly produced 



b. Pronotum strongly iitjlated posieriorly Xantholobus Van Duzee. 



bb. Pronotum not strongly inflated posteriorly 



c. Darsum low, distiiictly sinuate at middle Evashmeadea Goding. 



cc. Dotsum rounded or high, not siniiate 



d. Dorsum with a high swollen crest Grandolobus Ball. 



dd. Dorsum without a high swollen crest 



e. Dorsum highest in front Atymna Stal. 



ee. Dorsum regularly aicuate, highest at middle .... Cyrtolobus Goding. 

 2. Dorsum convex, not laterally compressed Ophiderma Fairmaire. 



II. Sides of prottotum with longitudinal carina or ruga 



A. Prouotum wiih a dorsal horn or process. 



1 . Corium with two discoidal cells 



a. Dorsum compressed, arcuate Polyrhyssa Stil. 



aa. Dorsum convex, sinuate Metheisa Fowler. 



2. Corium with one discoidal cell or none 



a. Pronotal process arising from in froiit of humeral angles Polyglyptodes Fowler. 



aa. Pronotal process arising from behind humeral angles 



b. Proiwtum with two large rouuded elevations, deeply sulcate beiween. Ecuadoria Goding. 

 bb. Pronoium with a single dorsal horn 



c. Dorsal horn small, ofien reduced to a mert tubercle .... Dioci.ophara Kirkaldy. 

 cc. Dorsal horn large, erect 



d. Poslerior process of horn declivous or sloping Hille Stal. 



dd. Posterior process of horn coiivex or with a distinct siep . . Gelastogonia Kirkaldy. 



B. Prouotum unarmed 

 i. Pronottim couvex. 



a. Corittm with iwo discoidal cells Heranice Stal. 



aa. Corium with one discoidal cell Maturna Stll. 



2. Pronotum highly elevaied Membracidoidea Goding. 



73. GenuS SMILIA Germar 



Smilia Germar, Rev. Silb. 1 : 233 (i833). 



Characters : A genus distinguished by the high, laterally compressed, semifoHaceous pronotum, 

 weak humeral angles, tegmina almost entirely exposed with three contiguous longitudinal veins not 

 joined by a median cross-vein, and with the median apical cell of the hind wing petiolate. Head 

 triangular; base straight; eyes ovate ; ocelli equidistant from each other and from the eyes; clypeus not 

 exteiiding beiow the infetior maig'ns of the gense but continuing the Hne of these margins. Pronotum 

 highly elevated ;ind lateialiy flattened, without ridges and highest in front; posterior apex suddenly 

 iiai rowed to a short aciite process which reaches to a point about half-way between internal angles and 



