86 ENTOMOLOGICAL NEWS. [June, 



To the list of American varieties of British species may be added 

 P. rapes, var. immaculiita (Can. Ent. July, 1889, p. 128); this 

 makes five in all. I hope that some one will give a list with the 

 bibliography, of the Lepidoptera common to Europe and America, 

 and when a new list of the North American Lepidoptera is pre- 

 pared the whole geographical range of the species (when found 

 outside of America) will be given. 



-o 



ELEMENTARY ENTOMOLOGY. 



Second Paper THE GENERAL STRUCTURE OF INSECTS. 



In those papers of this series which treat of the anatomy of 

 Insects in general, we have largely drawn, with the author's per- 

 mission, from Prof. J. H. Comstock's excellent '"Introduction to 

 Entomology."* 



Thanks to the kindness of Prof. A. S. Packard, we have also 

 made use of his well-known " Guide" f and his valuable " Ento- 

 mology for Beginners. "J 



As stated in the first paper the body of an Arthropod, and 

 consequently that of an Insect, is made up of a series of rings or 

 segments, within which are the vital apparatus and muscles. Con- 

 fining our attention to insects, it is to be noticed that even young 

 larvae just hatched from the egg show this segmentation of the 



* An Introduction to Entomology by John Henry Comstock, Professor 

 of Entomology and General Invertebrate Zoology in Cornell University, 

 and formerly United States Entomologist. With many original illustra- 

 tions drawn and engraved by Anna Botsford Comstock. Ithaca, N. Y. 

 Published by the author 1888, pp. iv, 234, 201 figures. Price $2.00. 



t Guide to the study of Insects and a treatise on those injurious and 

 beneficial to crops for the use of Colleges, Farm-schools and Agriculturists 

 by Alpheus S. Packard, M.D., with fifteen plates and 670 woodcuts; ninth 

 edition. New York, Henry Holt & Co., 1889, 715 pp. (first edition, 1869, 

 Salem) 



J Entomology for Beginners. For the use of Young Folks, Fruit- 

 growers, Farmers and Gardeners, by A. S. Packard, M.D., Ph. D.; second 

 edition, revised. New York, Henry Holt & Co., 1889, 367 pp. 272 figs. 



It is hardly necessary to remind the reader that an Insect is an Insect, 

 whether it is an unhatched egg, a growing larva, an apparently lifeless 

 pupa, or a flying or creeping imago. Images being so much more con- 

 spicuous than the preceding stages, have naturally received both common 

 and scientific names first. 



