INSECTS INJURING OAK-LEAVES. 167 



223. Charadra propinquilinea Grote. 



The larva is said by Mr. Thaxter to feed in Maine on the birch, wal- 

 nut, and maple, as well as the oak. 



Larva. — Black, with a dorsal white baud, aud a lateral white baud edged below 

 with black beueath white. The long tufta iu segment 2 were clear black instead of 

 red as normally. Specimens on walnut were mottled and black. (Thaxter.) 



Moth. — Differs from C. deridens by the median lines being much nearer together and 

 not joined at the center of the wings. Orbicular spot round, distinct, whitish, with a 

 central dark dot. Reniform spot contiguous to the outer liue; median line apparent 

 in front and behind the orbicular spot. Submarginal line diatinct on the costal point 

 behind, scalloped. An interrupted marginal line. Hind wiugs smoky, dark along 

 the external margin. Head and thorax whitish. Tegulae with black marks. Ex- 

 panse of wings 40™™. (Grote.) 



224. Psendothyatira eymatophoroides (Guen^e). 



Mr. R. Thaxter has collected on the red oak the caterpillar, which 

 lives in cases between leaves, such as are made by Charadra. When 

 at rest the body is bent, the head approaching the posterior segments. 

 One spun a slight cocoon in moss September 20 to 25, the moth emerg- 

 ing on June 9 following. 



Larva. — Rich yellow-brown, varying in shade, mottled by fine dark lines. A con- 

 trasting white spot just above the stigmata of segment 4, roundish and varying in 

 size, sometimes altogether wanting. A fine, continuous, black dorsal liue. Head 

 protruded and darker brown than the body. Stigmata black-brown, slender. Length 

 42™™ (1.68 inches), (Thaxter.) 



Moth. — Fore wiugs straight and at the internal angle with a tooth, the fringe of 

 which is reddish, and next to a large black spot. At the base of the wing is a gray- 

 ish-black spot, then succeeds a wavy band composed of two or three black lines, the 

 first of which is the extrabasilar, aud which goes from the costa to the inner edge 

 of the wing. The other lines are indistinct ; the submargiual is very much toothed, 

 oblique, not bent. The whole wing is of a silky gray, tinted with rose, with the 

 median space dusted with black scales. Hind wings ashy with a small central line 

 and yellowish fringe; beneath clear yellow. On each side of the abdomen is a tuft 

 of dark-gray scales. The female differs much from the male iu having no black spots 

 at the base of the fore wings nor at the iuterual angle, and the broad band of the 

 male is reduced to the extrabasilar alone, which is fine and edged with white. Ab- 

 domen not tufted on the sides. (Guen6e.) 



22.5. The Western Dagger-Moth. 



Apatela occidentalis Grote and Robinson. 



The caterpillar of this moth has been reared from the oak in Massa- 

 chusetts by Mr. Roland Thaxter {Psyche ii, 35). The moth is of com- 

 mon occurrence from June to July in the New England and Middle 

 States. The caterpillar also feeds on the elm and apple and is seen in 

 September. It began to spin a cocoon September 23, the moth appear- 

 ing early in the following summer. It was identified for us by Mr. 

 Grote. 



Larva. — Body cylindrical, hairy, with a black hump on the eighth segment, aud a 



broad black longitudinal band. The general color of the body is a livid leaden hue. 



Pupa. — Of the usual shape ; tip of the abdomen obtuse, with eight long, even, stiff 



