In the body there is scarcely any variation, except that the hind 

 edge of the collar, which is bluish-green in iessellaris, either for its 

 whole width or only in the middle, is immaculate in all my Antiphola 

 but two, and even in those two less obviously bluish-green. In both 

 species the inner edges of the shoulder-covers are bluish-green, and 

 there is in addition a narrow bluish-green vitta between the shoulder- 

 covers which has been overlooked by J)r. Harris. As regards the legs, 

 there is a small black or fuscous spot on the inside tip of the anterior 

 femora in three tessellaris, and three or four Antiphola. The head, 

 palpi, and antennae are exactly alike. In describing tessellaris, Dr. 

 Harris omitted to say that each of the five wing-bands bordered by 

 minute dusky spots is either pale ochrey-brown, or several shades 

 darker than the ground-color of the four wings, which, as he coi-rectly 

 states, is a faint tinge of ochre-yellow. The omission has not been 

 supplied in Dr. Morris's Synopsis. (See p. 348.) 



The larva of H. Antiphola may be described as follows, from the 

 living specimens : — Body covered with dense hairs, varying in color 

 in different specimens from dirty-wliitish to fuscous-cinereous, and from 

 ochre-yellowish to pale yellowish-brown. On the first segment behind 

 the head a lateral black pencil of hairs, beneath which are two white 

 pencils, all directed obliquely forwai'ds ; on the second segment a 

 lateral black pencil, beneath which is one white pencil, both directed 

 obliquely forwards ; on the eleventh segment, the same as on the 

 second, except that the pencils are directed obliquely backwards, and 

 that the white pencil is less obvious. When disturbed, this larva rolls 

 itself up like an Arctian. Food-plants, oak, basswood, &c. Very 

 common near Rock Island, Illinois. 



The larva of tessellaris has its pencils located on the second and 

 thiM segments instead of the first and second, and they are yellow or 

 orange-colored instead of being some of them black and some of them 

 white. The larva of Caryce Harris, which I do not know, is said to 

 have a pair of black pencils on the fourth and on the tenth segment, 

 and the imago is quite different from Antiphola. The larva men- 

 tioned by Dr. Harris (^Inj. Ins. p. 362) as occurring on various trees, 

 but with the imago of which he was unacquainted, is described by 

 him as having no pencils on the first segment, and cannot, therefore, 

 unless the Harrisian description is faulty, be identical with Antiphola. 

 The larva of maculata Harris has a pair of black pencils on the fourth 

 and on the tenth segments, instead of the first, second and eleventh, 

 and besides, the imago is said to resemble caryce, not tessellaris. It is 

 observable that Dr. Harris says that the caterpillar of tessellaris " is 

 not correctly represented in Smith & Abbott's Insects of Georgia." 

 Possibly the caterpillar of Antiphola may be there represented. 



PKOCEEDINGS B. S. N. H. — VOL. IX. 19 FEBECAEY, 1864. 



