PINE CATERPILLARS. 777 



lines, the inner bent inwards at a right angle upon the costa, and sending an angle 

 into the extra-discal space ; the line is bent outwards on the first median vein, then 

 curving inwards and ending on the hind margin of the wing. The outer line curves 

 outwards on the costa towards the apex, is bent on the first median vein, and behind 

 is nearly parallel with the inner line. A fine black scalloped hair-line at the base of 

 the fringe, which is darker on the points of the scallops. Hind wings with a double 

 black curved band beyond the middle, the space within the lines filled in with black 

 towards the hinder edge of the wing. An indistinct broad diffuse shade passes across 

 the wing just within the middle. On the under side of both pairs of wings the 

 discal dots are present, and there is a diffuse dark line common to both wings. Ex- 

 panse of wings, ae"^"". 



101. lioctuid caterpillar. 

 (Plate VI ; fig. 2.) 



Among the leaves of the white pine at Providence was, October 2 to 

 14, a mimetic caterpillar of the following description : 



It began to pupate October 4. One pupa found on the 4th. One of 

 the larvae turned black, retaining the three dorsal white stripes, but with 

 a row of about ten black spots on each side above, and head large, with 

 two black lines, the head generally marbled with dark. This is, I think, 

 a state of the present species without doubt. Another one is green, 

 with two subdorsal and a lateral row of black spots next both white 

 stripes. 



Larva. — Of the usual noctuid form, the body tapering gradually towards both 

 ends. Color of the head and body a little paler green than the pine needles. Head 

 small, narrower than the prothorax, rounded ; pale honey-yellow, greenish above. 

 Body smooth, with four distinct longitudinal white stripes. A median dorsal white 

 line and two subdorsal at nearly the same distance from the mediau as from the 

 spiracular one, which is a little broader and more scalloped. Spiracles ringed 

 with black, all the feet green; the body of the same color beneath as above. 

 Length, 23™™. 



102. Noctuid larva. 



A white and red striped noctuid occurred on Pinus strohus at Bruns- 

 wick, August 5, and one on the hemlock August 14. 



Larva. — Body thick, cylindrical, rapidly tapering towards and bending down 

 towards the short stout anal prolegs. Head round, green. Clypeus and antennae 

 whitish ; labrum reddish, head retractile in the prothorax. Body pea-green, color of 

 pine leaves. Three broad dorsal white conspicuous lines ; a lateral similar spiracular 

 white line tinged with straw-yellow, lined with red on the upper edge, the white 

 line containing the spiracles. Below, near the base of feet, is a similar white line 

 interrupted at the sutures. Thoracic feet reddish. Abdominal legs reddish at tip. 

 Length, 34™"^. 



103. The pine therina. 

 Therina semimidaria Walker. 



. We have reared this moth from a caterpillar found feeding on the 

 white pine at Providence, R. I., but failed to prepare a description of 

 the larva. It passed the winter in the chrysalis state, the moth emerg- 

 ing in May. 



