DECEMBER I5, 1900 Voi. II, pp. 45-46 
PROCEEDINGS 
OF THE 
NEW ENGLAND ZOOLOGICAL CLUB 
ILLUSTRATIONS OF HITHERTO UNFIGURED 
LEPIDOPTERA. 
BY A. G. WEEKS, JR. 
Part D0. 
Lasaia rosamonda sp. nov. 
(Plate V.) 
Habitat: Colombia, Bogota District. Expanse: 1.45 inches. 
Front and summit of head covered with brownish gray hairs. Antenne 
black with white annulations at base of joints, but scarcely perceptible. Club 
black. Thorax covered with brownish gray hairs above, beneath pinkish 
white, bordering to gray, and matching the wing coloring. Legs the same. 
Abdomen practically the same coloring as the thorax. 
The ground color of upper side of wings is a bluish slate with some lustre, 
the marking being confined to a series of transverse black lines. 
Costa of primary blue slate with black dusting near base. Hind margin 
somewhat dentated, interspaces being white with a thread-like black border. 
One sixteenth of an inch within this a black wavy line following contour of 
margin, suffusing the space at very tip, extending downward to submedian 
vein. An equal distance within this another wavy line exactly similar, and 
again a third line. These three lines with the interspaces of the ground color 
cover the outer third of the wing and form what, at a hasty glance, might be 
termed a broad wing border. Within these, at a somewhat greater distance, 
is a black line beginning at the subcostal vein and extending downward to 
