132 
BOTYDID^. 
Opsibotys nubilalis. (Plate CLIV. fig. 12.) 
Expanse | inch. 
Male. Fore wing smoky brown, clouded with smoky black ; very indistinct basal, sub- 
basal, antemedial, medial, and postmedial bands ; the medial band interrupted by a dark- 
outlined stigma at extremity of cell ; postmedial band with an outward curve between third 
and first median nervules. Hind wing paler, with a black spot at upper extremity of the cell ; 
a narrow dark band starting from middle of costa, taking a wide outward sweep between 
subcostals and first median nervule, then an inward sweep to middle of inner margin. 
Both wings with a series of black antecilial spots. Underside paler ; hind wing with an 
additional black speck in middle of cell. 
Opsibotys tinctalis. (Plate CLIV. fig. 6.) 
Expanse \ inch. 
Male and female. Fore wing brown, witli a purplish gloss ; an indistinct dark antemedial 
band, outwardly -oblique to below the cell, then nearly straight to inner margin ; an indistinct 
dark band across the end of the cell, with a small spot beyond it; a postmedial dark band 
with an outward curve between subcostals and first median nervule, and outlined with pale 
ochreous. Hind wing paler ; basal two thirds of costa whitish ; a blackish spot above the 
middle of the cell, and another at its extremity ; a dark postmedial band with a narrow 
ochreous outer border and with an outward curve between subcostals and first median nervule. 
Both wings with a series of black antecilial specks. Underside much paler. 
Opsibotys coorumba. (Plate CLIV. fig. 13.) 
Expanse |— j^- inch. 
Female. Fore wing smoky brown, a dark antemedial line, slightly outwardly-oblique; a 
dark spot at end of cell ; a dark postmedial band with an outward curve between subcostals 
and first medial nervule. Hind wing fuscous, with an indistinct dark speck at end of cell, 
and curved postmedial band. Both wings with a pale antecilial line, which is somewhat 
maculate on the fore wing. Underside much paler ; the postmedial band of both wings 
maculate, and with a regular curve on the fore wing, which is without the antemedial band. 
Isocentris undulinea. (Plate CLIV. fig. 21.) 
Expanse -^^ inch. 
Male. Reddish ochreous. Fore wing with a dark spot on costa one fourth from base : 
both wings with a dark bar at end of cell on a smoky ground ; a highly irregular postmedial 
