34 [July. 



rather strong, especially of elytra ; antenna and legs varying in colour from dark 

 brown to yellow ; anterior tibiae strongly dilated for at least two-thirds from apex, 

 and with strong irregular teeth, of which four or five at base, apex, and in the 

 middle, are especially conspicuous. Length, £ — 1 line. 



On Jfarruhium vulgare, Erysimum alliaria, and Salix aurita ; 

 very rare in Britain. Mr. Eye took a specimen at Putney with dark 

 legs and antennae, and Dr. Power another at Horsell with yellow an- 

 tennas and light legs ; it has also occurred at Mickleham. This species 

 is closel}^ allied to M. serriyes, but may be distinguished from it by 

 its much longer thorax, stronger and less close punctuation, and the 

 stronger and more irregular denticulation of the anterior tibise, which 

 are more dilated than in M. serrlpes. 



h. Anterior tibiae not dilated from above middle ; thorax short, 

 much broader than long. 



M. serripes, Gryll. — Oblong oval, rather flat, shining black, occasionally with a 

 leaden reflection, which is chiefly seen in fresh specimens, and is caused by the fine 

 ashy-grey pubescence with which the insect is clothed ; antennae and legs pitchy or 

 reddish-brown ; thorax transverse, sinuate at base ; punctuation distinct, about the 

 same on thorax and elytra ; anterior tibise armed with a row of short, strong, usually 

 regular, sharp teeth from a little below base to apex ; metasternum of male with a 

 distinct channel behind. Length, f — | lin. 



Eather rare ; Shiere, Mickleham, Hampstead, Caterham, Chaldon 

 (Surrey), Eastbourne, &c. On Salvia pratensis and Saponaria offici- 

 nalis, &c. 



Although, as a rule, the teeth on the anterior tibiaD of M. serripe^ 

 are variable in number, they are usually regular as regards length and 

 breadth in individual specimens, some having them broader and blunter, 

 some narrower and sharper ; occasionally, however, the same individual 

 has the right and left tibiae differently toothed ; in the late Mr. Eye's 

 collection one specimen has six or seven regular fine teeth on one side 

 and three or four strong blunt ones on the other : this is not unusual, 

 and may be noticed in examples of M. picipes, ovatus, &c. 31. serripes 

 is rather a variable species, and may sometimes be confused W'ith 

 small rubbed M. flavipes or M. picipes ; from both, however, it may be 

 distinguished by its narrower form, and the invariably stronger denti- 

 culation of its anterior tibise. 



B. Upper surface very thickly pubescent, thorax and elytra smooth 

 between punctures, scutellum only with strong cross stria- 

 tion ; legs black ; anterior tibise more or less pectinate. 



M. murinus, Er. (seniculus, ? ,Er.). — Oblong, not very convex, black, clothed 

 with thick greyish or whitish pubescence ; thorax one-third broader than long ; 



