British Species of Ilomalota. 131 



Var. — Thorace medio ante basin obsolete bi-impresso. 

 Very like H. vicina, and but little smaller; the an- 

 tennas are black, stout, and distinctly thickened towards 

 the apex ; second and third joints rather stout, of about 

 equal length (the third joint thicker in the male than in 

 the female) ; joints four to ten differ but little in length, 

 the first of them is a little longer than broad, the last of 

 them not so long as broad ; the eleventh joint rather 

 long", twice the length of the tenth. The head is much 

 smaller than the thorax, black and shining, distinctly but 

 not densely punctured; the disc more flattened in the 

 male, and the punctuation much more distinct. The 

 thorax is but little narrower than the elytra, not, or 

 scarcely at all, narrowed behind, its breadth about one- 

 third greater than its length, finely and not very densely 

 punctured, not channelled. The elytra are generally of 

 an obscure brownish colour, sometimes pitchy, not much 

 longer than the thorax, finely and pretty densely punc- 

 tured. The abdomen is black and shining, the basal 

 segments sparingly and finely punctured, the apical ones 

 almost impunctate. The legs are testaceous, more or 

 less dusky, the femora not darker than the tibiae. 



The male difiers in several points from the female. 

 The antennge have the third joint stouter than in the 

 female, and the other joints slightly shorter ; the punc- 

 tuation of the head is much more distinct ; the seventh 

 segment of the abdomen, on the upper side, has the 

 hind margin obsoletely crenulate ; and the ventral plate 

 is more produced than in the female, though but little 

 narrower. 



Not common, but pretty generally distributed in Eng- 

 land and Scotland. 



H. ohlongiuscula sometimes greatly resembles H. vicina, 

 but is readily distinguished, amongst other characters, 

 by its rather stouter antennae, shorter elytra, and the 

 thighs not darker than the tibiee. From H. nitidula its 

 smaller size and comparatively stouter antennae distin- 

 guish it. 



Ohs. — H. ohlongiuscula is very closely allied to H. 

 ohlonga, Kr. It is smaller, has a shorter thorax, which 

 is without any broad shallow impression at the base, and 

 it has less developed and darker coloured antennae. 

 Judging from Thomson^s description, Sk. Col. ix. 266, 

 Liogl'uta microptera should be one or the other of these 

 two species ; or, at any rate, is very closely allied. 



