Anisotoma.] clavicornia. 35 



feiTuginous or brownisli-reJ ; antenna? rather short, club long, as Ion"- 

 as the rest of the antenna?, first and last joints not so broad as the 

 others ; thorax at base narrower than elytra, rounded at sides, broadest 

 in middle, base bisinuate, posterior angles almost rounded, upper surface 

 ratlier thickly and very distinctly punctured ; elytra with sides not 

 strongly rounded, rather depressed on disc, with strongly punctured strise, 

 the punctures, however, being not as large as in some of the allied species, 

 interstices very finely punctured, alternate ones with distinct larger 

 punctures. L. 3-4j mm. 



Male with the posterior legs elongate, the femora angularly dilated and 

 finely denticulate in middle, and rounded at apex, tibia? biarcuate. 



By evening sweeping; very rare; Forest Hill (Power); Weybridge ; Hartlepool 

 (Gardner) ; Scotland very rare. Forth and Tay districts ; the first British specimen 

 was taken by Mr. Hislop, near Falkirk. 



This species is allied to A. dubia, but differs in its more oval and 

 depressed form, bisinuate base of thorax, and In-oad head, as well as by 

 having the last joint of the antennae narrower than the penultimate, 

 and the forehead furnished with two instead of four depressions ; it 

 appears to vary very much in size ; in Dr. Sharp's collection there is a 

 large, almost pitcliy-ferruginous, male, which is nearly 4^ mm. in 

 length. 



A. pallens, Sturm. Short oval, of a light testaceous colour, strongly 

 convex ; head largo, antenna? very short, club a little darker ; thorax 

 narrower at base than elytra, as broad or broader in middle than at base, 

 base truncate, posterior angles obtuse, upper surface thickly and finely 

 punctured ; elytra convex with rather finely punctured stria?, interstices 

 thickly and exceedingly finely punctured ; legs in both sexes stout, pos- 

 terior legs short, shorter than in any other species in the group except 

 A. hadia, femora rather broad. L. 2 mm. 



Male with the posterior tibite slightly curved. 



By evening sweeping in sandy places near the coast ; tlircc specimens taken by 

 Mr. J. J. Walker at Deal on September 19th, 1873. 



This species by its short legs and antennae and general appearance 

 seems at first sight to belong to the other group which contains J.. ciUaris 

 and A. furca; it is, however, readily distinguished from these, apart from 

 its smaller size, by the absence of cilia on the margins of the elytra and the 

 somewhat longer and less stout posterior tibiae, as well as by the much 

 finer punctuation of the thorax, and the finer punctuation of the striae and 

 interstices of the elytra : it is one of the species that will probably be 

 found in considerable numbers in Britain, as it is widely distributed on 

 the continent, having occurred in France, Germany, Austria, and 

 Russia. 



The next two species are easily distinguished from all the others 

 belonging to the genus by the distinct cross striation of the interstices 

 of the elvtra. 



