Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 257 



The present important addition to the fauna is due to the 

 researches of Mr. Edmund Leacock, who detected the single 

 specimen from which the above comparative description has 

 been compiled in his garden at the Quiuta de Sao Joao, near 

 Funchal. Its dark hue and totally different prothorax, in con- 

 junction with its comparatively robust antennae and curious 

 elytral sculpture, will, apart from minor differences, at once 

 separate it from its ally the L. brunneus. I have named it after 

 its discoverer, whose successful labours have so often augmented 

 the Madeiran Catalogue. 



Fam. Lathridiadae. 



Genus ANOMMATUS. 



Wesmael, Bull, de FAcad. de Bruxell. ii. 339, tab. 4 (1836). 



The little Anommatus 1 2-striatus bears, as already stated, so 

 strong a primd facie resemblance to Aglenus that it has been 

 universally, with one exception, placed alongside that genus, 

 amongst the Colydiadte. Nevertheless, the various authors who 

 have thus tacitly acknowledged its affinities seem merely to have 

 followed blindly in the wake of Erichson, whose description of 

 its structural details was, as M. Jacquelin Duval has recently 

 well remarked, both loose and incorrect ; and, after a very careful 

 dissection of it, I agree with M. Duval that it should be un- 

 doubtedly assigned to the Lathridiada. True it is that its robust 

 limbs and abruptly clavated antenna are not in accordance with 

 the normal members of that family; but then, on the other 

 hand, neither are they universally indicative of the Colydini-, 

 whilst even amongst the Lathridiadce such genera as Cholovocera 

 and Merophysia afford us an abundant precedent for the sup- 

 position that the terminal joints of the antennae may sometimes, 

 in that group, become absolutely lost by uniting into a densely 

 compact mass. Then, with respect to the tarsi of Anommatus, 

 having mounted them in Canada balsam for microscopic obser- 

 vation, I believe that M. Jacquelin Duval is perfectly right in 

 regarding them as triarticulate, instead of quadriarticulate, as 

 stated by Erichson. The basal joint is certainly a little con- 

 stricted on its under side, but even polarized light will not show 

 the merest rudiment of a suture; and I have not the slightest 

 hesitation, therefore, in concluding it to be a single joint, and 

 the whole foot to be, consequently, triarticulate which is almost 

 universally the case with the Lathridiadce. The antennae are 

 composed of only nine joints besides the club, which latter is 

 extremely compact, and with no annular traces on it whatso- 



