114 Annals of the Carnegie Museum. 



cc. Larger (cf, 16.5 mm.); lateral lobes of pronotum not greatly produced 

 outwards, wings extending beyond the pronotal process. 



acutilohus Hancock. 



A A. Vertex subequal in width to one of the eyes; dorsum lightly scabrous, granulate. 



b. Tegmina black marked with a median whitish macula; posterior angles of the 



lateral lobes of pronotum to a slight extent angulate. .amazoniis Bolivar. 



bb. Tegmina plain ferruginous, immaculate; posterior angles of the lateral lobes 



of the pronotum flattened outwards, the apices a little rounded. 



c. Wings not longer than the pronotal process bolivianus Hancock. 



cc. Wings longer than the pronotal process bolivianus extensus Hancock. 



Scabrotettix scabrosus Hancock. 

 Scabroteltix scabrosus Hancock, Genera Insectorum, fasc. 48, 1906, 47. 

 Habitat. — Bolivia. 



Scabrotettix magistralis Brimner. 

 Metrodora magistralis Brunner v. Wattenwyl, Berl. Ent. Zeit., XIV, 1900, 254- 



255. pl- 3. fig- I- 

 Scabroteltix magistralis Hancock, Genera Insectorum, fasc. 48, 1906, 47. 



Habitat. — Colombia, South America. 



Scabrotettix acutilobus Hancock. 

 Scabroteltix acutilobus Hancock, Genera Insectorum, fasc. 48, 1906, 47, pl. 4, figs. 

 37. 370- 

 Habitat. — Mapiri, Bolivia. 



Scabrotettix amazonus Bolivar. 



Metrodora amazona Bolivar, Ann. Soc. Ent. Belg., XXXI, 1887, 249. 

 Scabrotettix amazonus Hancock, Genera Insectorum, fasc. 48, 1906, 47. 

 Habitat. — Upper Amazon; Ecuador. 



Scabrotettix bolivianus Hancock. 

 Scabrotettix bolivianus Hancock, Genera Insectorum, fasc. 48, 1906, 47. 

 Habitat. — Bolivia. 



Scabrotettix boUvianus extensus Hancock. 

 Scabrotettix bolivianus extensus Hancock, Genera Insectorum, fasc. 48, 1906, 47. 

 Habitat. — Mapiri, Bolivia. 



Genus Allotettix Hancock. 



Allotettix Hancock, Ent. News, X, 1899, 276. — Morse, Biol. Centr.-Am., Orthopt., 

 II, 1900, 12. — Hancock, Tettig. N. Am., 1902, 126-127; Genera Insectorum, 

 fasc. 48, 1906, 48. 

 The genus Allotettix, which is practically confined to South America 



and the extreme southern parts of North America, is composed of several 



