Lepidoptera of the Amazons. 323 
NEMATOCAMPA, Guenée. 
14. Nematocampa arenosa, n. 8. 
Wings above sandy yellow, speckled with red-brown ; 
the disco-cellulars dark brown; primaries crossed just 
before basal third by an angulated black-brown stripe, 
and at external third by a sinuous stripe, beyond which 
is an angulated line of the same colour; external angle 
slaty grey, crossed transversely by a blackish-edged 
ochraceous band ; faint indications of a slender blackish 
submarginal line, beyond which the nervures are black ; 
secondaries crossed beyond the middle by an arched dark 
brown line; external area testaceous; apex and base of 
fringe slaty grey ; primaries below pale stramineous, with 
the same dark brown lines as above; area between the 
discal and angulated subapical lines slaty grey, traversed 
by a sinuous testaceous stripe flecked with grey; 
secondaries rather paler than the primaries, dark brown 
markings scarcely perceptible ; apex broadly slaty grey ; 
external border and base of fringe greyish ; body below 
pale creamy yellowish ; expanse of wings, 9 lines. 
Rio Jurua, 6th November, 1874. 
Nearest to N. resistaria. 
15. Nematocampa reticulata, n. s. 
Stramineous ; wings above striated with dark brown ; 
the nervures, a line before the basal third, an irregularly 
angulated line beyond the middle, and a regularly angu- 
lated discal line limiting the external area, dark chocolate- 
brown ; external area very broad, occupying nearly half 
the secondaries and about a third of the primaries, 
chocolate-brown washed with shining plumbageous-grey ; 
a large apical stramineous patch striated with brown on 
the primaries ; under surface paler, most of the brown 
markings on the basal two-thirds obsolete; only the 
external third of all the wings dark and of a smoky 
greyish colour; body cream-colour ; expanse of wings, 
1 inch 1 line. 
Pupunha, Rio Jurua, Ist November, 1874. Taken 
at light. 
Seems to be allied to N. varicata of Walker, 
