NOTES ON VARIOUS TRUCK-CROP INSECTS. 93 
Bruchidius trifolii Motsch. 
Bruchus trifolii Motsch., Bul. Soc. Nat. Moscou, p. 235, 1873. 
A very small species frequently received in this country from Egypt in seeds of Tri- 
folium alexandrinum, not known to be established in America, but a dangerous species 
if introduced with its food plant. 
Acanthoscelides obtectus Say.—The common bean weevil. 
Bruchus obtectus Say, Descr. N. A. Curcul., p. 1, 1831. 
Bruchus irresectus Fahr., Schoenherr, Vol. V, 1839. 
Pachymerus chinensis L.—The cowpea weevil. 
Bruchus chinensis L., Syst. Nat., 10th Ed., p. 386, 1758. 
B. scutellaris Fab., Ent. Syst., Vol. I, 2, p. 372, 1792. 
Pachymerus quadrimaculatus Fab.—The four-spotted bean weevil. 
Bruchus quadrimaculatus Fab., Ent. Syst., Vol. I, 2, p. 371, 1792. 
