172 HOMOPTERA 



152. Genus POSTANOMUS NOM. NOV. 



Postanomus (nom. nov.) Here proposed. 

 Anemus (preoccupied) Fairmaire, Rev. Memb. 522 (1846). 

 Eteoneus (preoccupied) Kirkaldy, Ent. XXXVII : 279 (1904). 



Chapacters : The insects of this genus stood for many years under Fairmaire's original name 

 « Anomus » ; however, Kirkaldy in 1904 called attention to the fact that this name vvas preoccupied and 

 proposed the name « Eteoneus » ; we now find that Distantin igoS used « Eteoneus 1) fov a genus of the 

 Tingitidae and we are therefore proposing « Postanomus » as a new name. 



The genus is characterized by the irregular and reticulate venation of the tegmina, the absence of 

 well developed suprahumerals, the straight dorsum and the slightly dilated tibiae. Head subquadrate, 

 twice as broad as high; base arcuate; eyes large and ovate; oceHi not conspicuous, farther from each 

 other than from the eyes and situated somewhat above a line drawn through centers of eyes; inferior 

 margins of gente sloping, nearly straight, thin and sharp; clypeus extending for half itslengtli below the 

 inferior margins of the genae. Pronotum convex, without suprahumerals but sometimes showingshght 

 tuberosities above the humeral angles; metopidium sloping,broader than high; median carina faint; sides 

 of pronotum ridged; dorsum straight; posterior process straight and iinpinging on tegmina; scutellum 

 narrowly exposed on each side. Tegmina entirely exposed; subcoriaceous and punctate ; venation very 

 irregular, showing at least three discoidal cells and a large number of small apical cells; apical limbus 

 very narrow. Legs short and slender; femora cyhndrical, tibiae somewhat ilattened, subfoliaceous, 

 distinctly dentate ; hind tarsi longest. 



Type reiicidatus Fairmaire. 



Geographlcal distribution ; Only two species have been described in this genus, both from 

 Brazil. 



1. cornutulus Stal, Rio Jan. Hem. H : 34. i (i858). Brazil. 



2. reticulatus Fairmaire, Rev. Memb. 522. i (1846). Brazil. 



153. Genus CENTRODONTUS Goding 



Centrodontus Goding, Ent. News HI : 201 (1892). 

 Tuberculocentpua Goding, Can. Ent. XXVII : 275 (1895). 



Characters : Diminutive, inconspicuous insects, characterized by the reticulate tegmina, 

 sinuate dorsum, unarmed anterior rounded pronotum and short posterior process. Head subtriangular, 

 roughly sculptured, defiexed ; base weakly and gradually sinuate and arcuate ; eyes small and ovate; 

 ocelli large, conspicuous, farther from each other than from the eyes and situated about on a line drawn 

 through centers of eyes; inferior margins of genae sinuate and sloping ; clypeus blunt, extending for half 

 its length below inferior margins of genas. Pronotum convex, rounded, highest above humeral angles, 

 unarmed; metopidium sloping, broader than high; median carina percurrent; humeral angles strong and 

 rounded ; sides of pronotum rough or tuberculate; posterior process not as long as the abdomen, dorsum 

 sinuate and subnodulate; tip acute and just reaching the internal angles of the tegmina. Tegmina 

 semi-opaque; base broadly coriaceous; venation very irregular and reticulate; tips rounded; no apical 

 limbus. Legs simple; tarsi about equal in length. 



