382 
that the Royal Mail steamers ply between those two points, so that a 
scale would be much more likely to be carried from Barbados to Jam- 
aica than from Cuba. there being no regular communication with the 
latter island. 
LIFE-HISTORY OF CALOTHYSANIS AMATURARIA WALK., A GEO. 
METRID MOTH. 
By A. 8. PACKARD, M. D., Providence, R. I. 
Fic. 76.—Calothysanis amaturaria: a. Fic. 77.—Calothysanis amaturaria, full grown larva: a, 
young larva; 6 glandular hairs—enlarged from side; b, from above—enlarged (original). 
(original). 
In August, 1890, I received from Mr. Frederick B. Simpson, of New 
York City, the larve of this geometer, which, afterrearing, I identified, 
and as the transformations of this genus have hitherto been unknown, 
and the appearance and markings are very singular, I asked Mr. Simp- 
son to send me the eggs, which he kindly did, also at my request pre- 
paring for me the following account of its habits: 
The moths emerge usually between 12 m. and4 p.m. Coition takes place very 
soon after emergence; it does not last long. Ihave not yot noted the length of 
time. The female commences to lay on the same day that she emerges. The eggs 
are laid promiscuously, some on the food-plant and some on adjoining plants; when 
deposited on the food-plant they are usually placed upon and underneath the edges 
of the leaf near the tip, but sometimes upon the stem and rarely in the middle of 
the leaf. I measuredone egg. It was 0.023 inch long and 0.012 in width. When first 
laid the eggs are of a very light yellow (almost white), but within twenty-four 
hours they turn red. I found, however, one moth that laid a few eggs which did not 
turn red (I send them in piece of paper in box with others), but, strange to say, all 
other eggs laid by the same female turned red. The light ones were the first laid. 
The food-plant is the Wild Buckwheat. 
Mr. Simpson sent me about 73 eggs laid in New York *‘ August 14 
and 15 by 2 taken August 14.” By this statement we infer that the 
whole lot were laid by a single moth. He afterwards wrote me that 
some eggs *“‘ which were laid August 16-18 and hatched August 22-23 
molted yesterday, August 31. I send you by this mail some of the 
larve; their length immediately after molting was 0.27 inch.” 
