MAPLE CATERPILLARS. 



401 



tion of the food-plants results as follows: Qnercus, Ulmiis, Tilia [Harris, 1841 and 

 1862]; Tilia aynericaua and Bosa lHams, 1869]; Acer, Salix, Populus, Corylus, Beiula, 

 Vaccinium [Trouvelot] ; Carya, Jnglans nigra, J. cinerea, Crataegus (Amer. Entom., 

 1869, V. 1, p. 121) ; Quercus virens, [Chambers^ Amer. Eutom., March 1870, v. 2, p. 156)]; 

 apple, quiuce, plum, P7'unus virginiana, Platanus, Gleditschia [Riley]; Betiila lenta 

 [Youug (Cau. Eutom., Oct. 1880, v. 12, p. 212)] ; Hamamelia virginica [Kyle {op. cit., p. 

 213)]; Castanea vesca, Fagus [Wailly (Jouru. Soc. Arts, 31 March 1882, v. 30, p. 528)]; 

 Tilia europwa, Crataegus coccinea, C. tomentosa, C. crux-galli, Amelauchier canadensis, 

 Sibes cynosbati, Quercus alba, Q. macrocarpa, Q. rubra, Corylus americana, C. rostrata, 

 Fagus ferruginea, Carpinus americana, Ostrya virginica, Carya tomentosa, C. amara, 

 C. alba, Betiila lenta, B. excelaa, B. alba, B. papyracea, Almis incana, A. serrulata, 

 Salix alba, S. humulis, Populus grandidentaia, P. tremuloides [Brodie (Paj)ilio, April 

 1882, V. 2, p. 58-59)]. Chestnut, as a food-plant, is ouly meutioued by Wailly, who 

 reared the larv;e in England, but they are often found in eastern Massachusetts, 

 on Castanea vesca. 



31. The cecropia caterpillar. 



Platysamia cecropia (Linn). 

 This caterpillar, larger than the foregoing, also sometimes occurs on 



Fig. 152.— Caterpillar of the Cecropia silk raotb, nat. size. — After Riley. 



the maple. It is about four inches long, and pale green, ornamented 

 with large tubercles colored green, blue, yellow, and red. 



Mrs. Dimraock has contributed to Psyche (iv, p. 276) the following his- 

 torical sketch of this insect. 



Jf<ac«s cewojjja Linn (Syst. Nat., 1758, ed.XO, p. 809). Harris (Rept. Ins. Injur. 

 Veg., 1841, p. 279-280) describes the larva, imago and cocoon of this species; later 

 (Treatise on Ins. Injur. Veg., 1862, p. 385, 387-389) he adds figures of the larva, pupa, 

 cocoon, and male imago; and still later (Entom. Corresp., 1869, j). 294-295) he again 

 describes the larva. Morris (Synop. Lepid. N. A., 1862, p. 223-224) describes larva, 

 cocoon, and imago. Trouvelot (Amer. Nat., March 1867, v. 1, p. 31) gives a note on 

 the cocoon. Riley (Amer. Entom., Feb. 1870, v. 2, p. 97-102, and 4th Ann. Rept. State 

 Entom. Mo., 187 \ p. 103-107) describes the eggs, and figures and describes the larva, 

 pupa, cocoon, and male imago. Sprague (Can. Entom., April 1870, v. 2, p. 82) de- 

 scribes the eggs. Saunders (Can. Entom., Oct. 1871, v. 3, p. 149-155) figures and de- 

 scribes the larva, cocoon, and male imago. Lintner (Entom. Contrib., No. 3, 1874, p. 

 125) describes the young larva. Worthington (Cau. Entom., Sept. 1876, v. 8, p. 165- 

 166) notices some color varieties of the imago. Gentry (Can. Entom., March 1877, v. 

 9, p. 41-49) describes the egg, different stages of the larva, and cocoon. Grote (Can- 

 5 ENT 26 



