174 HOMOPTERA 



three times in the literature of the family since Stal's publication of the Rio Janeiro paper and all of these 

 references are merely catalogue listings. 



However, Stafs description is fairly complete and seems to indicate a distinct genus and we are 

 therefore accepting it on his authority. Stal considers Lirania as closely related to Lycoderes and gives 

 the following description : 



« Caput levissime subrechno-dechvum, subtriangulare, apice inflexum, basi supra ocellos 

 tubercuHs duobus instructum. Thorax anterius gibbus, supra scutellum utrimque valde sinuatus, 

 retrorsum processum angustum acutum, carina usque ad apicem thoracis antrorsum producta in- 

 structum, clavo nonnihil breviorem, emittente. Tegmina clavo areolis quattuor basalibus, unica 

 discoidali et quinque apicalibus, rhomboidalibus, instructo. Pedes mediocres, tibiae triquetris, 

 utrimque leviter dilatatis. » 



We have attempted to incorporate the above mentioned chavacters in our taxonomic key and 

 believe that they should be sufficient for the recognition of the genus. 



Type bituberciilata Stal. 



Geographical distribution ; The single species of the genus is from South America. 

 I. bitubtrculata Stal, Rio Jan. Hem. H : 36. i (1860). Brazil. 



156. Genus FLEXOCENTRUS Goding 



Flexocentrus Goding, Trans. Amer. Ent. Soc. LH : 106 (1926), 



Characters : Medium sized insects with well developed suprahumeral homs, the posterior pro- 

 cess impinging on the scutellum, shghtly dilated tibiae, and corium with five apical cells and one discoidal 

 cell. Head subquadrate, twice as wide as long, deflexed; base strongly arcuate and feebly sinuate; eyes 

 large, protruding, globular; ocelli very large, prominent, farther from each other than from the eyes 

 and situated well above a hne drawn through centers of eyes; inferior margins of genae sinuate and pro- 

 jecting slightly outward; clypeus extending for about half its length below the inferior margins of the 

 genae. Pronotum convex,highest above humeralangles; suprahumeral horns well developedbutvarying 

 in size and structure; metopidium vertical, about as broad as high; median carina percurrent; humeral 

 angles large, prominent, triangular, blunt; posterior process slender, sinuate, tectiform, impinging on 

 tegmina, tip acute and reaching to the internal angles of the tegmina; scutellum narrowly exposed on 

 each side. Tegmina broad, hyaline, base broadly coriaceous and punctate; tips roundly truncate; veins 

 irregular; five apical cells ; one discoidal cell ; no apical limbus. All tibiae more or less dilated; all tarsi 

 about equal in length. 



Type felimis Haviland. 



Geographical distribution : The two described species are both from British Guiana, South 

 America. 



1. brunneus Funkhouser, Journ. N. Y. Ent. Soc. XXXVHI : 4. 410 British Guiana. 



(igSo). — Pl. 9, flg. 134. 



2. felinus Haviland, Zoologica VI : 3. aSy (1925). British Guiana. 



157. Genus CEDA Amyot and Serville 



OEda Amyot and Serville, Hemip. 546 (1843). 



Characters : This is one of the most remarkable of all of the genera of the family and the struc- 

 ture of the insects is so grotesque and bizarre as to differentiate them at once not only from all other 



