STATE HORTICULTURAL SOCIETY. 



245 



being quite abundant; but the present season, during which the former 

 has been very abundant, the latter is seldom seen. It would appear from 

 this that the aggressive foreigner, as the Caucasian among the races of 

 men, is destined to drive from the field the aborigines. 



The butterfly, or perfect insect, which varies slightly in the two sexes, 

 may be briefly described as follows: 



The general color a dull creamy white, often showing a yellowish 

 cast; the body black above and on the sides; head greenish yellow; 

 under side of the body yellow; antennae varied with black and white, the 

 club at the end dusky, except at the extreme tip, which is brown ; the 

 legs white; the wings of both sexes are of a creamy white above (but 

 marked with black dots, as hereafter noted, beneath), the anterior jiair 

 white, except the tips, which are yellow, the posterior pair yellow; on 

 the upper side the tips of the fore wings are marked with a triangular 

 black space; the base of both wings where they join the body are pow- 

 dered with blue-black. The males have the anterior wings each marked 

 above with a single round black dot near the center; the under side has 

 a corresponding black dot, also a smaller one immediately behind it, 

 near the posterior margin, is generally present. The upper side of the 

 posterior wings usually has a black or dusky dot or mark on the anterior 

 margin near the apex; und'er side without any spot. The female differs 

 only in having two black dots on each of the anterior wings, which are 

 usually larger than those in the males, which are reproduced on the under 

 side ; the base of the anterior wings is more widely sprinkled with the 

 dusky shading. The hind wings have the outer margin regularly rounded ; 

 abdomen slender. 



Length of body, about .75 inch; wings expand from 1.50 to 2 inches, 

 usually about 1.75 inch. 



I add here Dr. Fitch's lengthy description of the species as observed 

 by him in New York: 



The head is coated over with straight white and black hairs of different lengths, the 

 black one less numerous on the under side. The eyes are large, protuberant and hemis- 

 pherical ; in the living specimen, grayish-green, with four rows of movable black spots, 

 the central spot being of a deeper or coal-black color; in the dead specimen, dull brown 

 and without spots. The antenna: are 0.40 long, and composed of thirty joints, which 

 are shorter at each end than in the middle. They are slender and thread-like, with the 

 tips enlarged into a knob of an elongated, egg-shaped form, with the larger end outward. 

 Their colors are prettily arranged in new and unrubbed specimens, the outer and under 

 sides being white; on the upper side a continuous black line; on the inner side a row 

 of long, oval, dark-brown spots, one on each joint, extending from its base nearly to the 

 tip; these spots separated from the black line above a slender white line, which is 

 widened towards the apex of each joint, and there sends down a transverse band con- 

 necting this white line with the white under side. The knob is flattened or spoon- 

 shaped and black on the concave inner side, being sprinkled with black scales, which 

 sometimes form bands of this color; the tips pale yellow. The thorax is black and 

 clothed with soft hairs of a white or bluish-white coior. The abdomen is black and 

 covered with white appressed scales, less dense upon the back; its under side white and 

 coated with white scales. The legs are covered with white scales, and the under side 

 of the thighs with white hairs, and there is frequently a black stripe on the thighs and 

 one or two slender black lines on the shanks and feet. The wings are white and at 

 their bases dusted more or less with black scales. The fore wings fret|uently have black 



