1946] 
M y lab r idee 
39 
Stator B rid well, 1946 
Bruchus pruininus Horn has been transferred to Bruchidius 
by Herf ord ( 1 93 5 , p. 17) but that fact was overlooked by Black- 
welder in compiling the Fourth supplement to Leng’s Catalogue. 
It has now been made type of Stator B rid well. 1946, p. 55. 
Sennius Bridwell, 1946 
The following species, described in Bruchus and recorded 
from the northeastern United States, should be listed in Sennius: 
Sennius bivulneratus (Horn) new comb. 
Sennius cruentatus (Horn) genotype. 
Sennius nigrinus (Horn) new comb. 
I have examined the type of each of these species. 
Acanthoscelides Schilsky 
Bridwell (1929, p. 42) has characterized this genus. One 
character mentioned by him, namely, the carinate front, is not 
of generic significance, as already pointed out by Bottimer 
(1935, p. 129). It had seemed to me that macrocerus Horn, 
and those species related to flavicornis Sharp represent two sub- 
generic segregates, and in the manuscript that I submitted to 
Mr. Bridwell I had erected such. Mr. Bridwell, perhaps in- 
spired by my attempts to straighten matters out, has gone fur- 
ther, and erected genera not only for these two groups, but for 
several others that would formerly have fallen under Acantho- 
scelides. He may be right, but perhaps some of his groups would 
be more suitable as subgenera, especially Mimosestes, and Ai- 
garobius. 
The result of this breaking up of Acanthoscelides is to leave 
our North American fauna disrupted, so far as the generic al- 
location of species is concerned, and it is necessary to rebuild it. 
Bruchus obtectus Say is the genotype of Acanthoscelides (see 
Bridwell, 1929, p. 42, and 1932, p. 104) ; this, the economically 
important beanweevil, originally American, has become cosmo- 
politan through commerce. Its transfer to Acanthoscelides, and 
the record of the latter as a valid North American genus escaped 
the attention of the compilers of the second and third supple- 
ments to Leng’s Catalogue. 
Bottimer has described A. tenuis from the eastern United 
