72 HOMOPTERA 



aa. Pronoium convex, not eltvated Paradarnoides Fowler. 



2 . Corium uiith two discoidal cells 



a. Pronotum elevated and compressed behiiid humerals Cymbomorpha Stal. 



aa. Pronolum regularly convex 



b. Posterier process curved upward Paragargara Goding. 



bb. Posterior process straight Eumela Stal. 



B. Corium wiih one discoidal cell 



1 . Corium with no iransverse vein in middle of tegmina 



a. Dorsum iricarinate Iria Stal. 



aa. Dorsum unicarinate 



b. Posterior process broad, obiuse Rhexia Stal. 



bb. Posierior process slender, acuie 



c. Apical veins of iegmina curved Smiliorhachis Fairm. 



cc. Apical veins of tegmina straighi 



d T egmina hyaline Darnoides Fairmaire. 



dd. Tegmina semiopaque Brachytalis M. and B. 



2. Corium with a iransverse vein in middle of iegmina Procyrta Stal. 



28. Genus DARNIS Fabricius 



Darnis Fabricius, Syst. Rhyng. 25 (i8o3). 

 Oectonura Butler, Cist. Ent. II : 342 (1878). 



Characters : Medium-sized to large insects with the bodies so covered by the hard, usually 

 shining, pronotum as to give them a beetle-like appearance. The pronotum extends downward over 

 the sides so far as to cover about half of the tegmina but is entirely smooth, often brilliantly colored, and 

 has no processes of any kind. The head is obovate, about twice as broad as high and the clypeus does 

 not extend below the inferior margins of the genae ; the ocelli are prominent, about equidistant from 

 each other and from the eyes and situated above a liue drawn through the centers of the eyes. The 

 posterior process is heavy, rounded above, and acuminate, and extends just about to the tips of the teg- 

 mina. The tegmina are hyaline with five apical and two discoidal cells and a broad limbus; the corium 

 shows three distinct longitudinal veins with the outer one forked near the middle of the tegmen. 



This was the type genus of the subfamily and has had assigned to it at various times seventy different 

 species. The genus has now been split up, however, and practically all of these species have been 

 removed to other genera, so that at present only eight remain which are considered congeneric with 

 lateralis Fabricius, the type species of the genus. 



Type lateralis Fabricius. 



Geographical distribution : A Central and South American genus with species recorded as 

 follows : 



1. cuneata Butler, Cist. Ent. II : 341. 2 (1878). South America. 



2. cyclops Fairmaire,- Rev. Memb. 479. i (1846). Colombia. 



3. lateralis Fabricius, Syst. Rhyng. II : 27. 6 (i8o3). Brazil, Mexico. 



4. laticauda Fairmaire, Rev. Memb. 483. 22 (1846). Brazil. 



