FAM. MEMBRACID^. 147 



11. Hiud wittgs wHh three apical cells 



A . Dorsiim with strong longitudinal ridges 



1. Longitudinal veins of corium coalesciiig near middle of iegmina . . Incolea Goding. 



2. Longitudinal veins of coriitm noi coalescing Mendicea Goding. 



B. Dorsum wiihout longiiudinal ridges 



1. Corium with no discoidal cells Aphetea Fowler. 



2. Corium with two or more discoidal cells Phor.morphora Stal. 



121. GENUS TELAMONA FlTCH 



Telamona Fitch, Hom. N. Y. State Cab. 5o (i85i). 



Characters ; The type genus of the tribe Telamonini represents a very interesting group of 

 membracids characterized primarily by the fact that the pronotal developnient is chiefly dorsad rather 

 than cephalad or caudad, resulting in a hump or crest arising from the median line. The tegmina are 

 more or less covered by the sides of the pronotum and the hind wings have a sessile median apical cell 

 with the base truncate. 



The genus Telamona is characterized by having four apical cells in the tegmina and particularly by 

 the fact that the dorsal crest is quadrangular, without a distinct step on the posterior margin, and arises 

 from behind the line of the humeral angles. The insects are generally large in size, robust and heavy- 

 bodied but often rather inconspicuous because of their protective coloration and their resemblance to the 

 bark of their hosts. 



Head subquadrangular, twice as broad as high; base strongly arcuate and sinuate; eyes large and 

 ovate; ocelli large, conspicuous, much nearer to each other than to the eyes and situated about on a line 

 drawn through centers of eyes; inferior margins of genae strongly sinuate; clypeus extending for only 

 about one-fourth its length below inferior margins of gena;. Pronotum elevated into a iiiore or less 

 quadrangular dorsal crest which is mostly behind the line of the humeral angles and which does not show 

 a distinct step on the posterior margin; metopidium vertical orsloping, triangular; median carina strongly 

 percurrent; humeral angles much developed into broad, heavy, triangular, blunt extensions ; sides of 

 pronotum punctate, often roughly sculptured but not ridged, and extended downward to cover about half 

 of the tegmina; posterior process tectiform, gradually acute, usually extending just about to tips of teg- 

 mina. Tegmina hyaline or smoky ; basal area punctate ; fi ve apical and two discoidal cells ; apical limbus 

 well developed. Hind wings with four apical cells, the median apical cell sessile and truncate at base. 

 Legs simple; all tarsi about the same in length. 



Type ampehpsidis Harris. 



Geographical distpibution : Primarily a North American genus with a considerable number 

 of species and a large number of individuals. Telamona is distinctly a tree-inhabiting genus and has a 

 wide variety of hosts, the distribution of the species apparently being determined by the range of the 

 particular trees on which they hve. 

 I. ampelopsidis Harris, Rept. Ins. Mass. 180 (1841). — Pl. 8, Eastern Canada, eastern, south- 

 fig. 106. ern and western U. S. 



cissi (MS name) Harris, Rept. Ins. Mass. 584 (i833). 

 cyylops Fairmaire, Rev. Memb. 3io. 17 (1846). 

 diffusa Walker, List Hom. B. M. Suppl. 143 (i858). 

 tigriiia Ball, Ent. Amer. XII : i. 44 (ig^i). 



