ASH SPHINGES. 547 



16. Sphinx f/ordius Cramer. 



Usually feeding on the apple, the caterpillar of this species has been 

 fonutl on the ash, as well as on Myrica gale and M. ceri/era. 



Larva. — Of a bright apple-green color, with a brownish vertical stripe on each 

 side of the head, and seven oblique stripes on each side of the body, which are white 

 and margined above with violet. The caudal horn is reddish brown. Length, 2^ 

 inches. 



Pupa. — With a very short, detached tongue case. 



Moth.— Falpi reddish brown except the apex, which, with the head, sides, and 

 sometimes central part of the thorax, is gray. The rest of the thorax is blackish 

 brown with black metathoracic tufts. The abdomen is ashy gray with a cen- 

 tral black line and a broad tapering black baud on each side, broken by four or live 

 dull whitish cross-stripes. Under side of thorax and abdomen gray. The forewings 

 are gray, clouded with brownish. The discal spot is small, white and triangular, 

 and from it two fine black lines extend in along the cell and finally unite. The 

 median vein and veins 2, 3, 4, 5, and 6 are marked with black, and there are black 

 dashes between all the veins below the apex, the last forming the oblique apical 

 streak. A curved ashy-brown shade crosses the wing at the basal fourth; another, 

 from the costa a little beyond the middle, ends at the middle of the hinder margin, 

 and a third, crossing a little beyond and parallel to the last, is somewhat toothed on 

 the veins. Outside of this a blackish shade line, bordered on each side with gray, 

 is visible only on the hinder half of the wing. An ashy-brown spot rests on the 

 costa a little before the apex, leaving a gray shade on the upper side of the oblique 

 streak. Fringes brown at the ends of the veins and white between. The hind 

 wings are sordid white, with a central and broad terminal band nearly black. 

 Fringes pure white. The under side of the forewings is brownish gray, and the 

 fringes are as above. The under side of the hind wings is gray, with a narrow cen- 

 tral and broad terminal band of dark brownish gray. (Fernald.) 



17. Daremma undulosa Walker. 



This species feeds on the leaves of the white and black ash, lilac, 

 and privet {Ligustrum vulgare,) and, according to Eev. W. J. Holland, 

 occasionally on the white and red oak. (Can. Ent., June, 1886.) 



Egg. — Pale green or aqua marine in color, spheroidal in form, the vertical 

 diameter is four- fifths of a millimeter, one lateral diameter is two millimeters, and the 

 other is one and two-fifths millimeters. The surface is very finely granulated and 

 has pearly reflections. The eggs hatch in eight days. 



Larva. — The young larva is one-fifth of an inch long, of a very pale greenish yel- 

 low color with fine hairs scattered over the surface. The caudal horn is large, 

 straight, and pointed obliquely up and back at an angle of forty-five degrees with the 

 liueof the body, and is covered with a fine pubescence. It is smoky brown at the 

 tip only, but before the first molt the brown extends nearly over the whole surface 

 of the horn. 



The first molt occurs in from four to six days, after which the larva is one-third of 

 an inch long, of a pale green color, the head being a litiile lighter than the body and 

 having the surface granulated and a pale vertical stripe on each side. There are 

 seven oblique stripes on each side of the body, and a longitudinal stripe of a whitish 

 color but not plainly visible. 



The second molt is made in from three to five days, after which the larva is three- 

 fifths of an inch long, of a pale green color and with the stripes as before the molt 

 but plainer, and there is added a series of reddish spots on the forward side of the 

 oblique stripes where they cross the longitudinal stripe. The caudal horn is of a 



