PEACH. ROOT — THE BORER. VARIETIES. FEMALE. 115 



vacancy between them at each of the joints. The feelers are yellow on their 

 lower sides; there is a paler yellow spot between the bases of the antennas and 

 a deeper yellow transverse stripe at the base of the head both above and be- 

 neath. The thorax has a yellow stripe on each side of its middle, a transverse 

 one at its base which is slightly interrupted in the middle, and a short broader 

 one on each side under the wings; its base on the underside is white. The 

 abdomen commonly has two slender yellow bands above, at the apex of the 

 second and fourth segments, and a white line on each side of the tuft of hairs 

 at its tip. The forward hips are yellow on their anterior face, the four others 

 at their tips. The shanks are yellow at their tips, the hind ones have a yellow 

 ring on their middle interrupted on the inner side, the other four have a large 

 yellow spot on their anterior sides; their spines are white, their upper sides 

 black at least on the basal half. The fore feet have a white ring at the apex of 

 each joint, and a broad white stripe upon the inner side; the middle and hind 

 feet have a slender white line on their inner sides, which is often nearly oblit- 

 erated, showing only a few white scales at the apex of each joint. The wings 

 are transparent and glass-like, with a slight tinge of smoky yellow; their veins, 

 margins and fringe is steel-blue. The fore wings have a steel-blue band beyond 

 the middle upon their transverse anastamosing veinlet, a slender yellow line 

 upon their outer or anterior margin both above and below, and a similar line 

 on the inner edge of their inner margin, the hind wings also have a similar line 

 on the inner edge of their outer margin. 



The following varieties occur in this sex : 



a. The pale yellow spot between the bases of the antennae wanting. 



b. The same spot enlarged and extending backwards to the neck. 



c. The abdomen without white stripes upon the sides of the tail. 



d. The abdomen without any yellow bands. 



e. The abdomen with but one band, that upon the apex of the second seg- 

 ment wanting. 



f. Three yellow bands, one on the apex of the fifth segment. Common. 



g. Four bands, one on "the apex of each segment from the second to the fifth 

 inclusive, that upon the third segment often imperfect. 



The female differs from the male so much that it would not be supposed to 

 pertain to the same species. The abdomen is of a long oval form instead of 

 being slender and cylindrical, and is twice as broad across the middle as that 

 of the male. This sex is of a glossy steel blue color, with a purplish reflection 

 in places, and blackish upon the face, and upon the middle of the abdomen is a 

 broad band of a bright glossy orange yellow color occupying the whole of the 

 fourth and fifth segments* except upon the middle of the underside, where, at 

 least on the fourth segment some orange scales often occur interspersed with 

 the steel blue ones. The antennae have no fringe along their inner sides. The 

 fore wings are opake and of the same steel blue color as the body, their tips 

 and fringes being of a purplish tint both above and beneath. The bind wings' 

 are transparent broadly margined upon both sides and marked at the base with 

 steel blue, the glass-like portion being crossed by five robust veins, and com- 



*Say describes the abdomen as having only the fifth segment of an orange color, but in every 

 specimen which I have seen, the fourth segment also is of this color. 



