of the Amazons Valley. 387 



near the apical spines, thence more quickly narrowed; apex 

 truncate, outer angles spinose; surface sprinkled with ashy- 

 tawny specks, agglomerated here and there into irregular larger 

 spots, and leaving a clear space near the apex j apex broadly 

 edged with white. Body beneath reddish, clothed with ashy 

 tomentum, which is denser on the sides of the breast, and more 

 scanty along the middle of the abdomen. Legs reddish, spotted 

 with grey and black. 



? . Terminal abdominal segment tapering and narrow ; ven- 

 tral plate sinuate-truncate, angles not prominent ; dorsal plate 

 with a shallow angular emargination. 



Para. 



19. Colobothea securifera, n. sp. 



C. modice elongata, postice attenuata, fusca ; thorace vittis sex 

 cinereo-fulvis ; elytris maculis parvis cinereo-fulvis conspersis, sin- 

 gulis spatio magno discoidali fusco maculam majorem cinereo- 

 rulvam includente : maris segmento terminal! ventrali angulis in 

 lobos securiformes productis. Long. A\ lin. c? $ . (7 exempl.) 



Head reddish brown, streaked with tawny, and with two 

 divergent tawny lines on the crown. Antennae reddish, bases 

 of alternate joints from the sixth ashy. Thorax chestnut-brown 

 or dark brown, with six vittse and the under surface ashy-tawny. 

 Elytra rather short, tapering gradually and rather strongly from 

 base to apex; apex sinuate-truncate, external angles spinose; 

 surface dark castaneous brown or blackish brown, the basal and 

 apical parts dusted with irregular-sized tawny-ashy specks, 

 leaving a broad clear middle space, in the centre of which (on 

 each elytron) is a large irregular tawny-ashy spot ; apex with a 

 triangular broadish ashy spot. Body beneath clothed with 

 tawny-ashy pile. Legs reddish ; tarsi and tibiae spotted with 

 ashy and black. 



<$ . Terminal ventral segment short and broad, each apical 

 angle produced into a long, deflexed, horny, hatchet-shaped lobe ; 

 dorsal segment narrowed and emarginated at the apex : fore 

 tarsi moderately dilated, not fringed; first joint not broader 

 than the second. 



$ . Terminal ventral segment tridentated, middle tooth shorter 

 and broader than the outer ones ; dorsal segment narrow and 

 obtuse. 



Para and Lower Amazons. 



20. Colobothea sejuncta, n. sp. 



C. modice elongata, postice attenuata, fusca ; thorace vittis sex 

 cinereo-fulvis ; elytris maculis parvis cinereo-fulvis conspersis, 

 singulis spatio magno discoidali fusco maculam majorem cinereo- 



