Mr. J. Walton 07i the genus Bruchus. 209 



it is more or less developed into a small tooth, modified in the 

 sexes. 



The type of the B. seminarius of Marsham is mutilated and 

 difficult to determine ; it has the thorax and the posterior femora 

 subdentate, and the elytra variegated with white spots — charac- 

 ters which lead me to regard it as a variety, with pale interme- 

 diate legs, of No. 4t, to which Marsham has referred it. B. imma- 

 culatus is a worn and rubbed specimen, but it is specifically the 

 same as the present species. Mr. Kirby in his MS. has the 

 following note to this insect : ^^ an alt. sex B. seminarius.'* 



According to M. Schonherr and Dr. Germar, to whom I sent 

 specimens, the present species is certainly the B. granarius of 

 PaykuU^ Gyllenhal, Germar and Schonherr, but it is truly the 

 B. seminarius of Linnaeus and Fabricius ; I have therefore no 

 hesitation in adopting the latter name for this insect. B. semi- 

 narius is plentiful in Sweden. I have frequently met with it in 

 Yorkshire, but only now and then in the south : Mr. Kirby in 

 his MS. gives the habitat "m Vica septum," and I have taken, in 

 the first week of August, several larvse in the pods of this plant. 



5. B. luteicornis, llliger, Schonh. 



Ovate, black, sparingly clothed and variegated with a fine gri- 

 seous and white pile : head finely rugose-punctate, with a white 

 pubescent spot behind the eyes ; mouth rufo-testaceous ; antennae, 

 in the males, entirely rufo-testaceous except the terminal joints, 

 which are a little dusky at their apices : thorax transverse, ante- 

 riorly a little narrowed; on each side, about the middle, armed with 

 a distinct tooth ; behind deeply emarginated ; above with large 

 deep scattered punctures, the spaces between minutely punctured, 

 the lobe at the base white : elytra irregularly variegated with 

 white pubescent spots at the base, rather broader than the thorax, 

 the humeral angles rounded; behind, at the middle, a little dilated; 

 above punctate-striate, with the interstices flat and coriaceous, the 

 suture at the base white : pygidium covered with white pubescence, 

 immaculate ; the breast laterally, and the segments of the abdo- 

 men on each side densely covered with white pile : the four an- 

 terior legs rufo-testaceous ; the intermediate tibiae of the males at 

 the apex, within, armed with two minute teeth, diverging and 

 placed nearly at right angles with the apex ; the females are with- 

 out these appendages, and differ also from the males in having 

 the intermediate joints of the antennae (6th — 10th) black, the 

 apical joint rufo-testaceous ; the posterior legs black, with the 

 femora more or less acutely dentate. (Length 1^ line.) 



This insect resembles B. seminarius, but is readily distinguished 

 from that species by the veiy distinct difference in the form of 



Ann. ^ Mag. N. Hist. Vol. xiii. P 



