MAPLE CATERPILLARS. 



395 



pupa, cocoon, and male and female imagos ; and still later (Entom. Corresp., 1869, 

 p. 295-297) he gives a more extended description of the larva. Morris (Synop. Lepid. 

 N. A., 1862, p. 220) briefly describes the larva. Packard (Guide Study Ins., 1869, p. 

 ■299) gives brief notes on this species under the name of HypercJiiria varia Walker. 

 Bethune (Can. Entom., Oct., 1869, v, 2, p. 19, 20) briefly describes the larva, and 

 Minot {op. cit., Nov., 1869, v, 2, p. 28, 29) describes egg and larva without recognizing 

 the species. Lintner (Entom. Contrib., No. 2, 1872, p. 146-149) describes the egg, 

 the six larval stages, the pupa, and the cocoon. Riley (Fifth Rept. State Entom. 

 Mo., 1873, p. 133) describes egg, larva in its sis stages, cocoon, and imago of this 

 species, figuring larva and male and female imagos: and (Can. Entom., June, 1873, 

 V, 5, p. 109) describes the egg in detail. Reed (Can. Entom., Dec, 1874, v, 6, p. 



Fig. 149. -Male of to moth.— After Eiley. 



227-229, and Ann. Rept. Entom. Soc. Ontario, 1874, \). 11-13) repeats Riley's figures, 

 and describes the different stages very briefly. Grote (Can. Entom., Sept., 1878, V, 

 10, p. 176) states that this species is double-brooded in the South. The food-plants, 

 as compiled in chronological order from the above and from other notices of this 

 species, are as follows: Populus halsamifera, Ulmus, Trifolium, Zea mays, and accord- 

 ing to Abbot, Cornus and Sassafras [Harris, 1841] ; Quercus and Bobinia viscosa [Har- 

 ris, 1869 J ; Cornus Jlorida and Liriodendron [Morris]; Humuhis [Freeman (Amer. 

 Entom., Oct., 1868, v. i, p. 39)] ; Gossypium and Acer [Packard] ; Salix [Bethune] ; 

 Populus tremuloides, Bobinia pseudacacia, and Cerasus virginiana [Lintner] ; Amorpha 

 fruticosa, Baptisia, Prunus serotina, and currant [Riley]; Corynus avellana \_Reed'] ', 

 Betula, Comptonia asplenifolia, apple, Lespedeza, Symphoricarpus, and Fraxinus [Goodell 

 (Can. Entom., Sept., 1877, v, 9, p. 180)]; Prinos verticillatus, Bubus villosus, and B. 

 canadensis [Goodell (op. cit., Apr., 1879, v, ii, p. 78)], and Trifolium pratense [Pilate 

 (Papilio, May, 1882, v, 2, p. 67)]. The larva also eats Betula alba. 



The larva. — About 2 inches long, of a pea-green color ; the spreading, slender 

 spines deeper yellow and often tipped with black. A lateral white line, edged above 

 with lilac. 



The moth. — Males deep-ocher yellow marked with purple brown, with a large, 

 round blue spot, bordered with black, with a central white dash. The fore-wings 

 of the female are purple brown, the hind wings as in the male. In Massachusetts 

 the moths appear during June or early in July. 



