i58 



HOMOPTERA 



GENERA OF THE TRIBE ACUTALINI (TRIBUS NOVUS) 



I. Coriutn wUh five apical cells 



A. Corium without discoidal cells Acutalis Fairmaire. 



B. Corium with discoidal cells 



1. Corium with one discoidal cell Thrasymedes Kirkaldy. 



2. Corittm with two discoidal cells Euritea Stal. 



II. Corittm with Jour apical cells Micrutalis Fowler. 



135. GENUS ACUTALIS FAIRMAIRE 



Acutalis F^airmaire, Rev. Memb. 496 (1846). 



Charaeters : Small insects with triangular or elongate bodies, convex, imarmed pronotum, 

 tegmina entirely free with distinct venation and showing five apical and no discoidal cells. Head sub- 

 quadrate, twice as wide as high, smooth, convex; base nearly straight; eyes globular; ocelH small but 

 conspicuous, about equidistant from each other and from the eyes and situated on a line drawn through 

 centers of eyes; inferior margins of genae smoothly and Hghtly sinuate; clypeus much deflexed, extend- 

 ing for half its length below inferior margins of genae. Pronotum low, convex, without processes; 

 dorsum nearly straight; metopidium sloping, wider than high; no median carina; humeral angles weak 

 and rounded; sides of pronotum punctate but not ridged and impinging on tegmina; posterior process 

 long, flattened, acute, tip often depressed and reaching beyond internal angles but not to the tips of the 

 tegmina. Tegmina hyaline or semiopaque; base weakly punctate; veins strong; five apical cells; no 

 discoidal cell; apical limbus broad. Hind wings with median apical cell sessile and truncate at base, 

 Legs simple; hind tarsi longest. 



Type fusconervosa Fairmaire. 



Geographical distribution : This genus is found in most parts of North America, Mexico, 

 Central America and South America and while the number of species is not large, the individuals are 

 often very abundant. 



1. biguttula Fairmaire, Rev. Memb. 498. 8 (1846). 



2. flaviventris Lethierry, Ann. Ent. Soc. France IV : 164 (1890). 



3. flavosonaia Fairmaire, Rev. Memb. 497. 2 (1846). 



4. fusconervosa Fairmaire, Rev. Memb. 498. 6 (1846) 



5. geniculata Stal, Rio Jan. Hem. II : 32. 2 (i858). 



6. inornata Ball, Proc. Biol. Soc. Wash XVII : 119 (1905). 



7. litterata Fairmaire, Rev. Memb. 498. 9 (1846). 



8. lucidiis Huckton, Mon. Memb. 177 (1903). 



9. modesta Stal, Rio Jan. Hem. II : 32. 5 (i858). 



10. nigrinervis Fowler. B. C. A. II : 114. 2 (1895). 



11. plagiata Stal, Rio Jan. Hem. II : 32. 1 (i858). 



12. semicrema Say, Journ. Acad. Nat. Sci. Phila. VI : 242. 2 (i83o). 



Pl. 8, fig. I 18. 



CDiticonigra Fairmaire, Rev. Memb 498. 7 (1846). 

 hrunnta Provancher, Nat. Can. IV ; 32o (1872). 



Brazil, Colombia. 

 Venezuela. 

 Brazil, Peru. 



Colombia, Mexico, Guate- 

 mala, Nicaragua, Panama. 

 Brazil. 



Southeastern U. S. 

 Colombia. 

 Bolivia. 

 Brazil. 

 Mexico. 

 Brazil. 

 Canada, United States. 



