IOWA ACADEMY OF SCIENCES. 207 



have similar spurs, but the tibias are in that case angulate and 

 the antennae are below instead of between the eyes. All of 

 the N. A. representatives fall in the first two subfamilies of 

 Stal, which may be separated as follows: 



^^ SYNOPSIS OF THE SUBFAMILIES. 



A. Anterior margin of the pronotum straight; head narrower than 

 pronotum; ocelli placed close together; eyes small, rounded; 

 elytra broad, irregularly rounded at apex. Cercoinnce Stal. O 



AA. Anterior margin of pronotum angulate or rounded; ocelli farther 

 apart, eyes oblong or angulate; head equalling, or almost 

 equalling, the pronotum in width; elytra compressed behind, 

 rarely reticulate AphrophorincK Stal. '^ 



SUBFAMILY CERCOPIN^. 



This subfamily includes large, showy forms in black, red 

 and yellow and is well represented in the tropics. The N. A. 

 forms all belong to a single genus and only a single species 

 occurs north of the Mexican border, and it is more abundant 

 farther south. 



v"" GENUS TOMASPIS A, & S. 



Tomaspis A. & S. His. des Hemip. p. 561, 1843 



- Triecphora A. & S. His. des. Hemip. p. 561, 1843. 



Monecphora A. & S. His. des. Hemip. p. 562, 1843. 

 : Sphenorhina A. & S. His. des. Hemip. p. 562, 1843. 

 Head small, much narrower than the humeral angles of the pronotum: 

 front strongly inflated, anteriorly produced, usually beyond the vertex to 

 which it rounds back, transversely ribbed and usually medially carinate; 

 rostrum short, two jointed, scarcely reaching the middle coxa?; vertex 

 much shorter than the pronotum, obtusely angulate, tylus large, eyes 

 small, nearly round; ocelli twice farther from eyes than from each other; 

 pronotum large, anterior margin straight, lateral margins long and 

 strongly oblique, posterior margin straight or emarginate; elytra coriace- 

 ous, somewhat flaring, wider than the pronotum, apex rounding equally 

 from both sides, venation obscure, apically reticulate; wings with the 

 intramarginal vein entire, third longitudinal vein forked. 



^ TOMASPIS BICINCTA Say. 



OCercopis bicincta Say. Jour. Acad. Nat. Sci. Phil. VI, 303, 1831. 



C Cercopis ignipecta Harr. (MSS.) Cat. Ins. Mass. 1833. 



OMomcphora bifascia Walk. List Hom. B. M. p. 679, 1851. 

 C Monecphora angusta Walk. List Hom. B. M. p. 680, 1851. 

 £ Monecphora neglecta Walk. List Hom. B. M. p. 683, 1851. 

 <^ Monecphora ignipecta Fitch. (Descrip.) 3d Rep. Ins. N. Y. p. 71, 1856. 

 O Monecphora inferans Walk. List Hom. B. M, Sup. p. 176, 1858. 

 O Sphenorhina simulans Walk. List Hom. B. M. Sup. p. 183, 1858. 

 <) Tomaspis fasciaticollis Stal. Stett. Ent. Zeit. XXV, p. 63, 1864. 

 6 Tomaspis rubra Fowler. Biol. Cent. Amer., p. 183 (in part). 

 J Tomaspis simulans Fowler. Biol. Cent. Amer. p. 185 



