INSECTS OF THE THORN. 533 



Moth. — A small species; forewings sordid white, the lines distinct; basal space 

 reddish or blackish ; subterminal space somewhat darker than the median ; much 

 darker along the inner margin ; transverse posterior line with lower tooth of |y| small ; 

 a heavy dark shading from |y| of transverse posterior to below the apex ; little or 

 no reddish beyond transverse posterior line. Hind wings deep yellow ; median band 

 heavy, returning to the base; margin generallj' slightly interrupted. Expands 

 40 to 50""". 



Lintner's C. pretiosa is a variety of this species. It has the basal space black, the 

 lines not coalescing near the inner margin. 



2. Catocala blandula Hulst. 



The caterpillar was found by Mr. Saunders, of Loudon, Canada, 

 feeding on the thorn about the middle of June. It has also been 

 reared by Eev. G. D. Hulst. 



Larva. — Like that of C. cratcegi, but without the prominence on the protuberance 

 on the eighth segment, and with one on the eleventh. (Hulst.) 



Head flat, sprinkled with fine, brownish hairs; bilobed, each lobe tipped with 

 whitish ; color ashy gray, with a wide black band above extending obliquely down 

 the sides, in which are several dull faint reddish streaks. Body above greenish 

 gray, dotted with very minute blackish dots; on the anterior portion of the 

 second and third segments are a few whitish dots, each emitting a single hair ; a 

 broken dorsal stripe of a paler hue imperfectly margined with black, the stripe be- 

 coming whiter on hinder portion of fifth, sixth, seventh, eighth, and tenth seg- 

 ments. On fifth and sixth segments are two whitish patches similar in form, almost 

 pointed anteriorly, posteriorly enlarging with the hinder edge concave, thus giving 

 the widened portion a bilobed appearance; posterior jiortion of fifth segment rather 

 darker than the general color, with a slight purplish tint; hinder portion of ninth 

 segment slightly raised and of a deeper color, the dark patch covering the an- 

 terior iiortion of tenth segment and extending down the sides close to the under 

 surface. Posterior portion of twelfth segment slightly raised and margined behind 

 with black, the same color extending obliquely down the sides towards the front. 

 On each segment there is a small tubercle on each side the dorsal line, of a grayish 

 hue, but so small as to be scarcely visible, excepting those on twelfth segment, 

 which are somewhat larger. Terminal segment flattened and spreading, with a few 

 whitish dots on its hinder portion and two reddish-brown tubercles on the anterior 

 portion. Lateral fringe close to the under surface of a delicate, pinkish tint; 

 spiracles blackish. (Saunders, Can. Ent., viii, 74.) 



Moth. — This species is C. polygama of Grote, but not of Guen^e. It is the same as C. 

 cratcegi, except that on the forewings the base is always reddish ; the |V| of the trans- 

 verse posterior line with teeth nearly equal ; the transverse anterior and transverse 

 posterior lines coalescing posteriorly, and the transverse posterior line edged out- 

 wardly with reddish ; also somewhat larger. (Hulst.) 



3. Noctuid larva. 



This caterpillar was found on the thorn at Brunswick, Maine, Sep- 

 tember 3 and 4. 



Larva. — Five pairs of abdominal legs. Head very large and broad; flattened 

 above and much wider than the body, which tapers from the middle to the anal legs, 

 and is slightly contracted in front of the middle. The head is light pea-green, of 

 the same color as the body, the antennae very large, the long third joint whitish ; the 

 deeply-cleft labrum whitish. Along the body are two subdorsal bright straw-yellow 

 lines, rather broad and distinct. Length 16""". 



