24 



19. Acridium occidentale nov. sp. 



Dark brown; the head smooth, with very minute, distant punctu« 

 lations; frontal and lateral carinsE very prominent; tip of labrum and 

 edges of mandibles whitish. Prothorax profusely punctate, the 

 median carina very slight ; prosternal spine rather stout, long, scarcely 

 tapering, excepting at tip, straight but inclining slightly backwards. 

 Tegmina obscure brownish, outer half semiopaque with fuscous spots; 

 wings hyaline. Hind femora externally flat and white, the carinas 

 distinct, the hind tibiae with black tipped spines. Length of body 2 

 in.; of pronotum .39 in.; of antennae .68 in.; of tegmina 1.23 in. ; 

 of hind tibiae .96 in. Two ?. Napo or Maranon. 



20. Acridium labratum nov. sp. 



Head, especially the frontal ridge, punctate, brownish, the edge of 

 the labrum and terminal joints of the palpi pale ; the carinae promi- 

 nent; antennae pale fuscous, darker toward the tip; eyt-s large, 

 oblong, prominent, separated above by a narrow space. Pronotum 

 brownish, closely punctate, the median carina barely perceptible. 

 Tegmina brownish, blotched indistinctly and abundantly with small 

 fuscous spots ; wings hyaline, with blackish veins, tinged witii faint 

 yellowish at the base, and blackish fuscous at the apical half of the 

 costal margin. Legs brownish, tarsi edged* with blackish; hind 

 femora internally and externally flat and dark brownish fuscous, the 

 external Inferior carina yellowish ; hind tibisE armed with black 

 tipped spines. Length of body 1.23 in.; of tegmina 1.17 in. ; of 

 bind femora .66 In. One ?. Napo or Maraiion. 



21. Chrysochraon ? abbreviatum nov. sp. 



Brownish yellow ; head smooth ; lateral carinae of front distinct, 

 prominent ; median carina distinct, growing broader toward the 

 clypeus. Pronotum docked squarely in front, broadly rounded be- 

 hind, anteriorly smooth, posteriorly punctulate ; median carina dis- 

 tinct, slight; lateral carinae not prominent, marked b}' a black line, 

 which extends forwards to the eye. Tegmina brownish, Immaculate, 

 longer than the abdomen ; wings pellucid, faintly nebulose, especially, 

 but still very slightly, at the tip ; costal margin blackish ; hind tibiae 

 obscure fuscous, with pale, black tipped spines ; ovipositor reddish. 

 Length of body .6 in. ; of tegmina .5 in. ; of hind femora .42. One 

 ? . Between Quito and Napo. 



22. CEdipoda bivenosa nov. sp. 



Head rather smooth, dull luteous, marked with black points and 

 minute reddish brown blotches, arranged in irregular lines ; antennae 

 reddish, growing fuscous toward the tip. Prothorax finely scabrous, 



