170 Psyche [August 
lack of a satisfactory catalogue of the group. This want has been filled in 
the present paper which should serve to call the attention of entomologists 
to this interesting group of Arthropods as well as to furnish them with 
some basis for taxonomic work. Although, as the author says, the cata- 
logue presents no changes in nomenclature or classification it cannot fail 
to find a field of usefulness. Over 1300 species are included, belonging to 
nearly 275 genera in 28 families. C. T. Broes. 
Howard, L. O. Preventive and Remedial Work against Mosquitoes. Bull. 
U. S. Bureau of Entomology, No. 88, pp. 126 (June, 1910). 
This is a very complete account of the methods of mosquito prevention 
and destruction, and also contains a most instructive account of the re- 
sults accomplished by mosquito crusades in a number of countries. At- 
tention is called particularly to the fact that while the United States has 
done much toward exterminating mosquitoes in Cuba and the Canal Zone, 
measures relating to mosquito control within its own territory have been 
received with most deplorable indifference. C. T. Bross. 
Snodgrass, R. E. The Anatomy of the Honey Bee. Bull. U. S. Bureau 
of Entomology, Tech. Ser., No. 18, pp. 162, fig. 57. 
Aside from its especial usefulness to those interested in bee-keeping, 
the present account will be of value to many others on account of its most 
excellent illustrations and good descriptions of both the external and in- 
ternal anatomy. The several parts of the paper are preceded by short 
general considerations of the structure of more generalized insects, which 
will serve to make the whole intelligible to those unfamiliar with insect 
anatomy. C. T. Brues. 
Forbes, William T. M. A Structural Study of Some Caterpillars. Ann. 
Entom. Soc. Amer., Vol. 3, No. 2, pp. 94-132, pls. X—XX. 
This is a systematic account of the characters present in the caterpil- 
lars of a large series of Lepidoptera belonging to many families. The 
major part of both text and illustrations deals with the comparative ex- 
ternal anatomy of the head and the disposition of its sets, although some 
attention has been given to the body sete and armature of the prolegs. 
The author finds many useful classificatory characters and reaches a num- 
ber of conclusions regarding the phylogeny and relationships of certain of 
families and genera. C. T. Brves. 
Muttkowski, Richard A. Catalogue of the Odonata of North America. 
Bull. Public Museum, Milwaukee, Vol. I, pp. 207. 
This important catalogue adds another group of considerable size to 
the series of North American insects which have been listed within the past 
few years and forms a welcome addition. Although the list primarily in- 
cludes only Nearctic species found north of Mexico, a number of Mexican 
and all Cuban species are included, the southern limit being placed at 20° 
latitude, which, with a few exceptions, the author believes “closely ap- 
proximates the natural zoogeographical limit.” Such a treatment should 
avoid the omission of many species found in the southwestern states, as 
