INSECUTOR INSCITI-Ii MliNSl'RUUS 147 NEW SPECIES OF NOTODONTIDiE FROM CENTRAL AND SOUTH AMERICA (Lepidoptera) By W. SCHAUS Nystalea mocotana, new species. Male. — Palpi ocherous laterally streaked and irrorated with dark reddish brown. Frons ocherous mottled with brown. Vertex, collar, and thorax dull brown with some ocherous hairs. Abdomen dull brown above; lateral tufts at base; underneath whitish ochre. Legs whitish ochre with lateral reddish brown streaks and spots. Fore wings light brown, darker shaded at base and through cell ; streaks of alternate black and ocherous scales at base above subcostal, and below cell ; antemedial line defined by a black lunule on costa and below median edged on either side with whitish ochre ; a medial double dark brown lunular line partly mottled with pale ocher-ous scales ; a fine black and pale ocherous streak in cell be-tween antemedial and medial lines, and similar scaling on median vein ; discocellular spot linear, black and brown, filled in and edged behind with ochreous and white ; an elongated pale ochreous shade on costa medially crossed by a dark brown line ; a small black shade in end of cell, and a fuscous shade from discocellular spot to termen from vein 5 to vein 7 ; a narrow dentate fuscous shade curved around cell to middle of inner margin followed by the postmedial which consists of three brownish lines, irregularly lunular with white points on veins 2-7 and a short oblique white line from veins 5 to 4, all of these markings being very confused ; an elongated pale ochreous spot on costa from postmedial to apex, reaching be-low vein 7, and with a short dark streak between veins 7 and 8, and some dark points on costal edge ; an indistinct sub-terminal, lunular, ochreous line from vein 4 to inner margin, above vein 4 forming small spots and across the apical spot a pale straight line; an interrupted velvety, brown black, mar-ginal line, followed by fuscous shades on interspaces of ter-men ; cilia mostly fuscous crossed by ochreous streaks at veins.