LIBRARY

COLEOPTERA 601
would like to include. In the arrangement of species I am following Leng's
Catalogue, so the genera included will not fall in alphabetical sequence.
Rhynchites Herbst with 17 North American species contains the rose snout
beetle, R. bz'color Fab., 5-7 mm. long, red and black which breeds in wild and
cultivated roses throughout much of this country. Cylas Latr., 9 spp. (Indo­
Malaysian) is now widely represented by the sweet-potato and yam weevil,
C. formicarius Fab., 3-4 mm., red and blue, and ant-like in form, which is
established in some of the southern states. APion Herbst, 1,000 spp., is practically
cosmopolitan. It contains some very small species, a few of which are of
considerable importance like AjJion pisi Fab., A. apricans Herbst. and A.
flavipes Paykull of Europe which attack peas, clovers. and other legumes;
FIG. 208. The rice weevil. Sitophilus oryza (Linn.). a cosmopolitan pest of stored cereal
proclucts and one of the most important destructive insects known.
A. xanthostylum Wagner on cotton in Africa; and many other economic species
throughout the world. There are more than 100 species in North America.
The great genus Brachyrhinus 1 Latr. ( = Otiorhynchus Germar), 891 species,
is mostly Palrearctic. but many economic species have been transferred to other
temperate regions; three into Australia and eight into the United States. Many
of the species are known to be parthenogenetic. The most important species are:
clavipes (Bonsdorff), 'i