20 



in.; breadth of tympanum .22 in.; length of wings .24 in.; of fore 

 tibias 1.25 in.; of middle tibiae 1.15 in. ; of hind tibiffi 2.03 in. One 

 i . Napo or Maranon. 



DISCERATU3 nov. gen. 



Body curved slightly, a little compressed. Head bluntly rounded 

 anteriorly, the front very declivent ; sockets of the antennae with an 

 elevated rim, and between them the vertex produced into a low 

 crater-like elevation with a slight ridge running from it in front; 

 upper edge of clypeus bearing, on either side externally, a rather 

 long, cylindrical projection, curved slightly downwards and rounded 

 at the tip ; eyes of medium size, prominent; palpi rather short and 

 stout. Pronotum produced anteriorly, partially covering the bead; 

 posteriorly docked somewhat squarely, scarcely covering the mesono- 

 tnm ; the sides rather short, the lower edge a little rounded, higher 

 behind than in front. Tegmina minute, wings wanting. Legs rather 

 stout, the anterior pair long; the hind femora rather slender, not 

 long ; ooxaj and sides of thoracic sterna produced into small blunt 

 spines. Ovipositor very broad at base, curved pretty strongly, taper- 

 ing rapidly, the tip pointed ; anal cerci very short. • 



11. D. nubiger nov. sp. 



Head smooth, front reddish, sides greenish yellow tinged with red ; 

 vertical projection and a median line posterior to it blackish ; antennae 

 reddish, palpi pale. Pronotum reddish brown, edged with black an- 

 teriorly. Legs testaceous, the knees slightly dusky. Tegmina black- 

 ish, with luteous veins. Abdomen dark testaceous ; ovipositor pale 

 testaceous, bordered on the apical half and minutely dotted on the 

 middle of the sides of the apical half with reddish ; the apex sharply 

 pointed; anal cerci pale, very short, blunt, conical. Length of body 

 .95 in.; of pronotum .25 in. ; of tegmina .12 in. ; of fore femora .35 

 in. ; of hind femora .52 in.; of ovipositor .42 in.; breadth of same at 

 base .12 in.; length of anal cerci .06 in. One 9. Salto, ten thou- 

 sand feet above the sea, on the slope of the volcano of Antisana. 



ACANTHACAEA nov. gen. 



Body curved, slightly compressed. Head produced; the vertex 

 prolonged into a sharply pointed, long and curved thorn; front smooth, 

 very declivent; first and second joints of antennas large, remaining 

 joints slender ; eyes rather small, prominent, globose. Pronotum 

 rather long, produced backward a little over the mesonotum, the 

 sides short, rounded, with a broad and shallow lobe in the middle of 



