Mr. J. Walton on the genus Eruchus. 209 



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

 sexes. 



The type of the B. seminarius of ]\larsham is mutilated and 

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

 svdjdentate, 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. 4, to which IMarsham has referred it. B. imma- 

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

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

 follo^\'ing 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 

 Paykull, Gyllenhal, Germar and Schonherr, but it is truly the 

 B. seminarius of Linufeus 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 : INIr. Kirby in 

 his MS. gives the habitat " in Vica sepium,'' and I have taken^ in 

 the fu'st week of August, several larvee in the pods of this plant. 



5. B. lufeicornis, 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 fiat 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 vnili white pile : the four an- 

 terior legs rufo-testaceous ; the intermediate tibife 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 antennse (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 very distinct difference in the fo7'm of 



Ann. (Sf Mag. N. Hist. Vol xiii. P 



