HICKORY CATERPILLARS. 305 



61. Catocala angtisii Grote. 



With the same habits as G. insolahilis. 



Moth. — Fore wings dark greenish gray ; no band on the inner margin, though 

 often a cloud at the sinus of the transverse posterior line and below the apex ; no 

 triangular white spot on the median space ; basal dash i.urning upward outwardly ; 

 in these respects differing from C. insolahilis. Hind wings black, fringe dark, rarely 

 light. Expands 70 to 80™™. 



Habitat. — With the same distribution as iu C. insolahilis. Lucetta 

 differs in having a longitudinal shading from the base to beneath the 

 apex. 



62. Catocala obscura Strecker. . 



Also feeds upon the hickory, according to Mr. Angus. 



Moth. — Fore wings uniform dull smoky gray ; lines fine but distinct; margin of 

 transverse posterior line with the upper tooth much the larger; submarginal space 

 whitish, serrated. Hind wings black, fringes white. Expands 70 to 80™™. 



Dr. D. S. Kellicott says that " the larva of this species feeds on the 

 leaves of the shagbark hickory, G. alba, and in habit agrees very closely 

 with other described species of the genus 5 it is, apparently, a night 

 feeder, concealing itself by day at rest under the loosened bark of the 

 tree, upon the leaves of which it feeds at night. July 5, 1883, at Pulaski, 

 E^. Y., larvte were taken from beneath the bark of the hickory, and 

 from these, two imagos were obtained. Two sizes were thus obtained 

 on that day ; one, evidently soon after its last larval molt, measured 

 1.6 inches, width of head .17 incb, of eighth and ninth rings .2 inch ; the 

 smaller ones were 1.1 inches long ; they molted July 19, when they 

 were 1.5 inches long and precisely similar to the larger size when taken 

 July 5." 



Larva. — The head is somewhat flattened, reticulated with coarse, uneven lines, 

 and a heavy black stripe extends along the lateral borders from the articulation of 

 the mandibles half way to the apex of head lobes. In this character it closely resem- 

 bles the larva of C. retecta, which likewise feeds on the hickory. The antennae are 

 long, slender, and white. 



The color of the skin is dark gray, much darker than in C. retecta. The piliferous 

 spots which are arranged nearly at the corners of a rectangle are large and light col- 

 ored ; these are larger than usual on rings 5 and 12, otherwise there are no humps ; 

 there are no lateral fringes as in JJltronia and Unijuga. The dorsal line is very 

 obscure ; there are on rings 5, 9, and 10, irregular black crosses ; the stigmatal 

 line distinct and black. The stigmata are of the usual shape ; the long axis, how- 

 ever, leans slightly forward, rings black, white within. The ventral surface is 

 pinkish with black spots in the abdominal rings except 8 and 9. The color 

 of smaller specimens yellowish gray. One larva, then 2 inches in length, spun the 

 usual, light, very loose cocoon among the leaves July 20 ; the imago appeared about 

 August 15. The pupa was of the usual form and color, covered with bloom ; it 

 measured 1.1 inches. The anal booklets unusually long. (Kellicott.) 



It inhabits the Middle, Western, and probably Southern States. 



Var. residua Grote. Fore wings of a brighter, bluer color. Hind wings with the 

 fringes often dark. 



5 ENT 20 



