310 THE ENTOMOLOGIST. 
Levett, Ellison, Joy, Watson, Helps, Fremlin, Oldham, Hickling, 
McDonald, and others, also exhibited Lepidoptera. Mr. Billups, 
British and Exotic Coleoptera, British Hemiptera, Hymenoptera 
Aculeata, Ichneumonide and Diptera; the new method of 
setting and labelling the Hymenoptera attracting considerable 
attention. Mr. F. Grut, Exotic Coleoptera. Mr. EK. Shaw, 
some recently captured British Orthoptera, many of them from 
south-eastern localities. Mr. West (Greenwich), twelve drawers 
of British Coleoptera, the whole forming a very fine collection. 
There were a large number of microscopes showing the smaller 
forms of life—H. W. Barker, Hon Sec. 
REVIEWS. 
Fourth Report of the United States Entomological Commission. 
By Cuarues VY. Riney, Ph.D. Washington. 1885. 
Tuis fourth report, issued by the U.S. Department of 
Agriculture, contains the final report on the cotton-worm, 
together with a chapter on the boll-worm. These are the chief 
enemies of the cotton plant, but Dr. Riley tells us that ‘‘a good 
deal of material has been collected bearing on these other 
insects aftecting the plant, and we hope some day to find time 
to prepare it for publication.” 
To take the lesser enemy first, Chapter XVI. treats of the 
boll-worm as a cotton enemy. This is the cosmopolitan and 
almost polyphagous, though rare to Britain, Heliothis armigera, 
which everywhere appears to be destructive where abundant. 
Its larva is a grass, leaf, stem, or fruit feeder, being especially 
partial to the ears of maize, the fruit of the tomato, and the boll 
of the cotton plant; its attacks on the garden geranium only 
appear to have become known in the States last year through a 
Denver correspondent (‘ Report,’ p. 363): we were nine years 
before them in this direction (see Entom. ix. 261, x. 283). In 
the southern portions of the cotton belt this species appears to 
have five broods in the year, a prolific and troublesome enemy to 
deal with. 
The cotton-worm report is extremely exhaustive, and we are 
told in the introduction that it was virtually finished at the end 
of 1882, before the preparation of the third report, but its 
appearance was delayed from various causes. It carries the 
