FAM. MEMBRACID^ 191 



Type rufotestaceus Fowler. 



Geographical distribution ; A Middle American genus with the two following species : 



1. flavus Goding, Journ. N. Y. Ent. Soc. XXXVII : 2. 171 (1929). Costa Rica, Yucatan. 



2. rufotestaceus Fowler, B. C. A. II : iSj. i (1896). — Pl. I 0, flg. I 56. Mexico, Panama, Guatemala. 



181. GENUS BRACHYBELUS Stal 



Brachybelus Stal, Bid. Memb. Kan. 292 (1869). 



Characters : Small, inconspicuous insects with broad pronotum, no suprahumerals, short, 

 slender posterior process and three apical cells in the hind wings. Head subquadrate, broader than high, 

 deflexed; base weakly sinuate; eyes ovate; oceUi small, twice as far from each other as from the eyes and 

 located near the base of the head, far above a line drawn through centers of eyes; inferior margins of genae 

 sinuate; clypeus extending for two-thirds its length below inferior margins of genffi. Pronotum broad, 

 convex, without suprahumerals; metopidium sloping, twice as broad as high; median carina obsolete; 

 humeral angles large and triangular ; posterior process short, slender, straight, impinging on scutellum 

 and not reaching the internal angles of the tegmina; scutellum broadly exposed on each side. Tegmina 

 subhyaline; base broadly coriaceous and punctate; veins strong and pilose; five apical and two discoidal 

 cells; apical limbus narrow. Legs simple; hind tarsi longest. 



Type cruralis St&l. 



Geographical distribution : The type species, which is verj' abundant throughout Mexico 

 and Central America, is the only described representative of the genus. 



I. cruralis Stal, Bid. Memb. Kan. 292. i (1869). — Pl. I 0, fig. I 57. Mexico, Guatemala, Panama, 



Honduras. 



182. GENUS BRACHYCENTRUTUS Metcalf AND BRUNER 



Brachycentrutus Metcalf and Bruner, BuU. Brook. Ent. Soc. XXI : 28 (1926). 



Characters : Near the preceding genus in general facies but differing in having three discoidal 

 cells in the tegmina and in having a broad, triangular posterior process which reaches the apex of the 

 clavus. Head subquadrate, broader than high; base nearly straight; eyes globular; ocelli small, twice 

 as far from each other as from the eyes and situated jiear the base of the head, far above a line drawn 

 through centers of eyes ; inferior margins of genee rounded; clypeus projecting for half its length below 

 inferior margins of genae. Pronotum convex. without suprahumerals; metopidium nearly vertical, 

 broader than high; median carina percurrent ; humeral angles large and blunt; posterior process short, 

 heavy, triangular, reachingjust about to the internal angles of the tegmina; scutellum narrowly exposed 

 on each side. Tegmina semiopaque, coriaceous and punctate, with indistinct vems in the basal three- 

 fourths; hyaline in the apical fourth; five apical and three discoidal cells, the two outer discoidal cells 



Nota : Walker's species patulus has usually becn considered as belonging to the genus Brachybelus, but this 

 species probably belongs to the Bythoscopidae. 



