22 



19. Hippacris crassa nov. sp. 



Dull brownish yuUow, tlie antennce a little infascated, the tips of 

 the femora and base of the tibiae blackish ; tarsal joints tipped with 

 blackish, the apical half of the claws and spines black; tegmina 

 yellow (green in lite?), toward the apex subliyaline; wings hya- 

 line, a little sordid, the veins brownish fulvous. Vertex of the head 

 with a few punctures arranged in rows; front deeply punctate; pro- 

 notum, especially the posterior half, rugose; the edges of the lateral 

 carina irregularly serratulate. 



Length of body, 31 mm; of antennaj, 20 mm; of pronotum, 11. 25 

 mm.; greatest width of pronotum, 10.75 mm.; lenotli of tegmina, 26 

 mm.; breadth of same, 6.25 mm.; length of hind tibia?, 14 mm. 1 ?, 

 J]astern slope of the Peruvian Andes. 



20. Zonocerus ? bilineatus nov. sp. 



Ferruginous brown; the antennte infuscated beyond the base; 

 the lateral carinse of the pronotum edged below with a narrow black- 

 ish stripe, most intense above, which runs from the hinder edge of 

 the eye to the base of the tegmina. Tegmina blackish fuliginous, 

 mottled with testaceous, the anal area luteous, immaculate. Wings 

 hyaline, faintly fuliginous, increasing slightly in intensity toward the 

 harder; costal border blackish, especially beyond the middle. Hind 

 tibia; infuscated on their posterior third; spines and claws black- 

 tij)pe(l . 



Length of body, 19 mm.; of antennse, 10.5 mm.; of hind tibia;, 6.5 

 mm.; of tegmina, 15.5 mm. 1 ?, imperfect, eastern slope of the 

 Peruvian Andes. 



21. Machserocera nigromarginata nov. sp. 



Blackish brown above ; rest of head and prothorax pale cinereous. 

 Upper surfiice of head bluntly rugulose, with a distinct median ca- 

 rina. Pronotum bluntly rugose in front, depressed rugulose behind, 

 with a distinct, rathei' sharp median carina. Tegmina blackish 

 fuliginous, darkest on the apical half where the nervures are closer; 

 wings dull orange, sulphureous at the base, surrounded by black, 

 which occupies the whole of the costal area, excepting the very base 

 and the outer border nearly to the middle of the vving; spines of 

 hind legs black tipped. 



Length of body, 21.75 mm.; of tegmina, 19 mm.; of wings, 17 

 mm.; of hind tibite, 13 mm. 1 cf, Eastern slope of the Peruvian 

 Andes. 



