1897.] Recent Literature. 515 
grounds that the Ascomycetex are modified and degraded Rhodophy- 
cee. 
The genera are disposed as follows by Dr. Thaxter :— 
Family LABOULBENIACE®. 
Group I, EnpoGEN&#, with antherozoid produced endogenously. 
Order Peyritschiellez. 
Genera Dimorphomyces, Dimeromyces, Cantharomyces, Haplomyces, 
Eucantharomyces, Camptomyces, Enarthromyces, Peyritschiella, Dicho- 
myces, Hydreomyces, Chitonomyces. 
Order Laboulbeniez. 
Genera Amorphomyces, Helminthophana, Stigmatomyces, Idiomyces, 
Corethromyces, Rhadinomyces, Rhizomyces, Laboulbenia, Tetratomyces, 
Diplomyces, Rhachomyces, Chastomyces, Sphaleromyces, Compsomyces, 
Moschomyces. 
Group II, Exocen#, with antherozoids produced exogenously. 
Order Zodiomycetezx. 
Genera Ceratomyces, Zodiomyces. —CHARLES E. Bessey. 
Recent Text-Books.—Some years ago we noticed the first part of 
an Introduction to Entomology by Professor Comstock, and we thought 
when we received the present volume’ that we at last had the completed 
work ; but a moment’s examination showed that we had instead an en- 
tirely new work, somewhat smaller than the other would have been. 
It is essentially a work for the beginner in entomology, and contains 
just those things about species which the beginner wants to know. It 
begins with an essay on classification, etc., and then passes to a consid- 
eration of the Arthropoda, in which the Crustacea and Myriopodp are 
dismissed with short shrift and the Arachnida are treated with a little 
more detail, and then begins the discussion of the insects proper (i. e., - 
Hexapods). The general account of these is rather short, but is clear 
and accurate as a whole. These subjects already mentioned occupy 77 
pages, the rest is devoted to classification. Professor Comstock divides 
the insects into the Orders:—Thysanura, Ephemerida, Odonata, Ple- 
coptera, Isoptera, Corrodentia, Maliophaga, Dermaptera, Orthoptera, 
Physopoda, Hemiptera, Neuroptera, Mecaptera, Trichoptera, Lipidop- 
tera, Diptera, Siphonoptera‘ Coleoptera, Hymenoptera—and these are 
treated in the order given. The author, however, disarms critisism of 
this arrangement by his words on p. 77. Among the specially notice- 
‘A Manual for the Study of Insects. By John Henry Comstock and Anna 
Botsford Comstock. Ithaca, N. Y.: Comstock Pub. Co., 1895, 80 pp. x+-701. 
