OF WASHINGTON, VOLUME XII, 1010. 83 



DESCRIPTIONS OF NEW SOUTH AMERICAN 

 LEPIDOPTERA. 



BY HARRISON G. DYAR. 

 Family LIPARID^. 

 Mantuda chironomus, new species. 



Chocolate brown, anal tuft red-brown, base of thorax and abdomen 

 white below. Fore wing chocolate brown, sparsely irrorate with black 

 dots and strigae; a broad inner red band, angled in the cell and edged 

 without by a narrow whitish line; a large round discal mark, olive-brown, 

 edged with darker and preceded by a dull whitish crescent broken in the 

 middle; a narrow whitish outer line, bent outwaid below subcostal vein, 

 slightly flexuous, curved a little at its termination at anal angle and fol- 

 lowed by a red-brown shade. Hind wing white, except the costal third, 

 which is colored like the fore wing. 



Expanse, 35 mm. 



Three males, St. Jean, Maroni River, French Guiana (W. 

 Schaus); Omai, British Guiana (W. Schaus). 



Type: No. 13061, U. S. National Museum. 



Allied to Mantruda erratica Schaus, but larger and more 

 strongly marked. 



Mantruda mollis, new species. 



Similar to the preceding, but narrower-winged, paler brown; the inner 

 band is edged on both sides by white and cut off from both costa and 

 inner margin; the discal mark is a double whitish diffused blotch; the 

 outer line starts near it subcostally, is angled strongly downward and lost 

 below. Hind wing semihyaline rather than white, the costal portion 

 brown, thickly irrorated with white scales. 



Expanse, 35 mm. 



Two males, St. Jean, Maroni River, French Guiana, April, 

 1904 (W. Schaus). 



Type: No. 13062, U. S. National Museum. 



Mantruda signata, new species. 



Wings long and narrow; fore wing milky brown, with a rusty red 

 shade on the area above vein '1 beyond the middle of the wing; sub- 

 basal shade broad, dark brown, oblique, terminating subcostally and 

 edged with a whitish line; a small quadrate spot on costa at basal 

 third; discal mark whitish, overspread by the red shade except in its 

 lower segment, which is yellow-white and distinct; outer line whitish, 

 faint, bent at vein 5, lost below; a broad apical dark-brown shade, ter- 

 minating above vein '1. Hind wing white, the costal area purplish 

 brown. 



