FAM. MEMBRACIDiE ii3 



Type concinna Goding. 



Geographical distribution : Species of this genus have been leported only from Mexico and 

 southwestern United States as foUows : 



1. carinata Stal, Hem. Mex. 71. 435 (1864). Mexico. 



discoidalis Fowler, B. C. A. II : 141 (i8g6). 



2. coiiciuna Goding, Cat. Memb. N. A. 437. 128 (1894). — Pl. 6, Arizona. 



fig. 67. 



80. GENUS ATYMNA STAL 



Atymna Stal, Bid. Hem. Syst. SS^ (1867). 



Characters : Atymua was described by Stal as a subgenus of Smilia to accomodate those species 

 which were small in size and had the pronotum much higher in front than behind as illustrated by the 

 species castanea whxh he designated as the type. The other generic characters are much the same as 

 in Cyrtolobus and are as follows : Head triangular ; base weakly sinuate; eyes globular; ocelli prominent; 

 equidistant from each other and from the eyes and situated below a Hne drawn through centers of 

 eyes; inferior margins of genae sinuate; clypeus extending for nearly half its length below inferior 

 margins of genae. Pronotum laterally compressed, elevated, tectiform, sharply keeled, much higher in 

 front than behind, gradually sioping from the top of the anterior crest to the apex of the pronotum 

 which reaches just beyond the internal angles of the tegmina; no horns or other processes; metopidium 

 sloping, wider than high; median carina strongly percurrent; humeral angles weak, triangular and 

 blunt; no lateral ridges. Tegmina almost entireiy exposed ; liyaline or clouded; three longitudinal 

 veins in the corium with the inner pair connected by a cross-vein; five apical cells with the median 

 cell petiolate; two discoidal cells ; apical hmbus broad. Legs simple; tarsi equal in length. 



Type castanea Fitch. 



Geographical distribution : Widely distributed over the United States and Canada with 

 species reported from practically every section of these countries and with two species described from 

 South .America. 



1. alroinarginata Goding, BuU. Brook. Ent. Soc. XXIH : 1^7 (1928). Ecuador. 



2. castanea Fitch, Cat. Hom. N. Y. 49 (i85i). — Pl. 6, fig. 68. Canada, United States. 



nigricephala Emmons, N. Y. Agr. Rept. V : 137 (1854). 



3. helena Woodruff, Journ. N. Y. Ent. Soc. XXHI : i. 44 (i9i5). Canada, northeastern United 



States. 



4. inornita Say, Journ. Acad. Nat. Sci. Phila. V : 299 (i83i). Canada, United States. 



5. fiilosa Funkhouser, Journ. N. Y. Ent. Soc. XXVII : 4. 273 (1919). Peru. 



6. querci Fitch, Cat. Hom. N. Y. 49. 672 (i85i). Canada, United States. 



7. reticulata Ball, Journ. Wash. Acad. Sci. XXVII : ir. 481 (1837). Arizona. 



8. simplex Van Duzee, Stud. N. A. Memb. 93. i (1908). Arizona, Texas. 



81. GENUS GRANDOLOBUS BALL 



Grandolobus Ball, Proc. Biol. Soc. Wash. ^5. 75 (1932). 



Gharacters : This genus was erected by Ball to accommodate the single ^-lecles grandis which 

 had formerly stood in the genus Cyrtolobus because, as he correctly states : « This species lias always 



