﻿1870.] . 283 



M. viduatus, St. ; Er., I.e., p. 185. Also determined as British by M. Brisout 

 from specimens sent by Mr. Crotch and myself. It may be known from M. 

 pedicularius by its lighter antennae, the more rounded sides of its thorax (which is 

 scarcely so closely punctured), its more abruptly broadened hinder tibiae, and its 

 rather broader anterior tibiae, the apical teeth of which are sharper and longer. 



M. pedicularius, (Gyll. ?) Er., I.e., p. 186. In the collections of Messrs. Crotch 

 and Bold and Dr. Power. Determined by M. Brisout. The anterior tibiae are very 

 slightly widened, with the entire outer margin toothed, the denticulations being 

 stronger towards the apex, the last but one most prominent. 



M. bidens, Brisout, Gren. Cat. et Mat., p. 52. The M. pedicularius of Wat. 

 Cat. must be referred to this species. It differs from the pedicularius of Erichson 

 in being rather smaller and narrower, less convex, duller and more finely and 

 closely punctured (the pimctuation at the base of the elytra being very delicately 

 transversely rugulose), and in having its anterior tibiae mnch more widened towards 

 the apex, which is armed with (usually) only two well defined teeth. This species 

 is common at Mickleham, on Teucrium scorodonia. 



M. ovatus, St. ; Er., I.e., p. 198. Determined as British by M. Brisout from 

 specimens sent by Mr. Crotch and myself. It is very like M. viduatus (though 

 associated with M. flavipes), but of a shorter ovate form, with the thorax more 

 abruptly narrowed in the apical third, and the tibiae broader, — the armature of the 

 anterior pair being less defined. 



M. bidentatus, Brisout, I.e., p. 61. Determined by M. Brisout from two speci- 

 mens in Mr. Crotch's collection. The species is allied to M. erythroTpus, but is 

 rather wider and more convex, with closer punctuation, wider tibiae, and a bi- 

 dentate projecting transverse keel at the extremity of the last abdominal segment 

 in the $ . 



M. ebeninus, Crotch Cat. =^lugubris, Sturm. 



M. obscurus, Crotch Cat., is now referred by M. Brisout to M. palmatus, Er. 

 The insect is not uncommon at Mickleham, and is, I think, the distinctus of Wat. 

 Cat. It does not seem to me to agree precisely with the descriptions of any of 

 those species. 



M. marrubii, Bris,, Crotch Cat., still unique (I believe) as British in Mr. 

 Crotch's collection, is allied to M. serripes, but is larger, with stronger punctuation, 

 a longer thorax, and the armature of the anterior tibiae stronger and less regular. 



I intend to communicate a further series of types to M. Brisout, and will 

 publish the result of his investigation. 



Lathridius constrictus, Gyll., Ins. Suec, iv, p. 138. I have a single British 

 specimen of this curious insect. It is allied to carinatus, but is rather smaller, 

 narrower, and of uniformly lighter colour, with the thorax especially longer and 

 narrower, and divided as it were into two lobes, of which the anterior is much the 

 larger, and very rounded at the sides, with no trace of any angle in front. The 

 two-jointed club to the antennae, on which Thomson founded his genus Coninomus 

 (c/. Kraatz, Berl. Ent. Zeit., xiii, p. 129) , readily separates these two species from 

 their allies. L. constrictus is sunk in De Marseul's Cat. (L'Abeille) as a syn. of 

 limbatus, Forst. (the latter name again appearing by itself at the end of the genus !) ; 

 but, according to Kraatz, I.e., it is carinatus, Gyll., that is identical with Forster's 

 species. Mannerheim attributes L. constrictus to Britain, evidently through his 



