i: 



the eyes very dull luteous; vertex docked squarely in front, the 

 neck constricted; basal joint of antennae blackish, the rest reddish- 

 brown, their apices blackish. Pronotum dull brownish fulvous, the 

 anterior margin slightly emarginate and yellowish, the hinder margin 

 scarcely raised, broadly rounded and nearly straight, margined dis- 

 tinctly but narrowly with black, the color extending anteriorly along 

 the lateral carinae more than one-third the way to the anterior mar- 

 gin ; lateral carinae square, sharp posteriorly; pleura marginate, es- 

 pecially in front. Tegmina grass green, the stridulating vein luteous 

 the margin next the pronotum, when at rest, black. Legs brownish 

 yellow, hind tibiae greenish. Length of pronotum .31 in. ; breadth of 

 same anteriorly .17 in.; do. posteriorly .26 in.; length of tegmina 

 2.38 in. ; breadth of same .71 in.; length of hind tibiae 1.33 in. One 

 S. Guayaquil. 



5. Acanthodis ? antenuatus nov. sp. 



Head smooth, green ; antennae pale green, of great length. Pro- 

 notum dull green, scabrous with frequent tubercules ; front border 

 straight; hind border slightly produced, broadly rounded, nearly 

 straight. Tegmina green, longer than the abdomen, shagreened with 

 an anastomosis of irregular veins, the tip produced anteriorly to a 

 rounded point ; wings hyaline, as long as the tegmina . Legs rather 

 stout; foramina of anterior tibiae large, oblong, obovate, open; foot 

 pads of the terminal tarsal joints largely developed. Ovipositor long, 

 broad, testaceous, the upper edge perfectly straight, basal half of 

 blade of uniform breadth, the tip minutely pointed ; anal cerci rather 

 short, conical, luteo-fuscous. Length of pronotum .28 in.; of tegmina 

 1.35 in.; breadth of same .34 in.; length of antennae 5.8 in.; of hind 

 tibiae .9 in. ; of ovipositor .7 in.; breadth of same .08 in.; length of 

 anal cerci . 1 in. One 9 . Napo River. 



6. Meroncidium conspersum nov. sp. 



Head smooth, testaceous; the summit, vertex, first two joints of 

 antennas, borders of the antennal sockets and the lateral carinae of 

 front black ; rest of antennae reddish brown ; mouth parts testaceous. 

 Prothorax black above, and along the anterior and posterior borders 

 at the sides, the rest testaceous; black portions very roughly scabrous 

 with rounded elevations; prosternum bimucronate. Tegmina dark 

 testaceous, the inner border black and covered with transverse black 

 bars and spots; hind wings fuscous. Hind femora broad, compressed, 

 the apical half with five or six black spines; hind tibise armed with 

 four rows of rather short black spines. Ovipositor broad, sharply 

 pointed, the lower edge shghtly rounded, the upper edge nearly 



