DIAGNOSES SPECIERUM 



I. Stirps CEDIPODA 



(OEdipodiles) 



Insecla plus minusve compressa, graciles vel crassa, nonnunquam 

 lamen depressa ac crassa. 



Valvae genitales feminarum inferae — spepius graciles, compressae, 

 parle basali elongata, margine supero-exlerno ad basin unguiculi den- 

 lem vel angulum efficiente; lalere infero plano, exlus marginalo, sul- 

 cumque illo margine parallelo,poslice arcualum ad marginem inlernum 

 tendenlem obferenle; — rare breves parlc basali dilalala, eonvexa. 



Les caracteres distinclifs de ce groupe ont ele suffisamment indiques a la page 41. 



1. Genus Arphia, Stal. 



Tomonolns (ex parte), H. de Saussure, Revue et Magas. de Zoolog., XIII, 1801, 319. 

 — Arphia, St&l, Recensio Orthopteror, I, 1873, 113. 



Corpus compressum, altius quam lalius, glabrum. Tempora lateralia, punctata. 

 Pronotum granulatum; ejus crisla lum intersecta tum integra. Elylra unicoloria, den- 

 sissime coriaceo-reliculata, campo marginali dense reticulato, apice dense quadrato- 

 areolalo, nonnunquam pellucenle; lota minute sparse nigro-punctulata, vel punctis 

 majoribus valde conspersa, nunquam fasciata. Aiarum fascia nigra marginem externo- 

 posticum late involvens tteniamque ulnarem erniltens; vena media frequenter cum 

 v. discoidali confusa. Femora postica lala, marginibus dilatatiusculis, latere inlerno 

 nigro, flavo bifasciato. Tibia? poslica 1 cceruleaj, ad basin annulo luleo (in desiccatis 

 basi apice et ante medium nigi'escenles, vel decolores, fusco-annulalae). Arolia inler 

 ungues tarsorum minula, allamen lobiformia. 



Species magna parle granulalione pronoti alarumque colore variabiles. 



Genus in America boreali et cenlrali circumscriptum. 



