NOTES ON VARIOUS TRUCK-CROP INSECTS. 93 
Bruchidius trifolii Motsch. 
Bruchus trifolii Motsch., Bui. 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, Deser. 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. 
