24 PSYCHE [April 



parents. Specimens similar to these intermediate forms are frequently found in 

 nature, a fact that points towards a widespread crossing of these beetles, the food 

 plant, breeding range, and period of grovvth being identical for the two species. The 

 ontogeny of the color pattern is similar to that recorded by oMiss McCracken ('06) for 

 Lina lipponica, i. e., it is the same for both species up to a certain point where the 

 color of C. multipunctata ceases and retains a rufous tint, while that of C. higshyana 

 proceeds until the rufous is covered by a layer of darker green pigment. 



C. hinata is more difficult to cross with the other two species and only one such 

 case was brought about. A female C. lunata was crossed with a male C. multipunctata. 

 Both beetles were raised in the laboratory and had not been contaminated before 

 they were put together. They were often found in copulation and two batches of 

 eggs were laid. The first batch did not hatch although the full grown embryos 

 could easily be seen through the ('horion. The eggs of the second batch were pre- 

 served at the age of five days for microscopical examination. 



LITERATURE LIST. 



1S90. — Beutenmuller, W. "Food Habits of Some Chrysomelidae. " Entomologica 



Americana, Vol. VI, pp. 17;5— 178. 

 ,1904. — Dimmock, C. and F. Knab. "Early Stages of Carabidae." Bull. 1. 



Springfield jMus. Nat. Hist. p. 4. 

 1894. — Hamilton, J. "Cat. of Coleoptera Common to North America, etc." 



Trans. Amer. Ent. Soc, Vol. 21, pp. 345-416. 

 1893.— Janet, C. " Etudes sur les fourmis." Ann. Soc. Ent. Fr., Vol. 62, pp. 467- 



482. 

 1899. — Lugger, (). "Beetles Injurious to Our Fruit-producing Plants." Bull. 66, 



Min. Agri. Exp. St., pp. 85-331. 

 1906. — jNIcCracken, I. "Inheritance of Dichromatism in Lina lapponica." Journ. 



Exp. Zoo!., Vol. 2, pp. 119-136. 

 1899.— Smith, J. B. "Ins.>cts of Ne-w Jersey," p. 307. 



Professor V. L. Kellogg, of Stanford University, will be in Europe from 

 April to December of this year. His address is, care French, Lemon & Co., Flor- 

 ence, Italv. 



