1912.] 251 



there appears to be considerable doubt felt by Continental authorities, 

 more evidence is certainly required to establish it as British than we 

 possess at present. 



The characters on which Rye relied to separate it from L. ballotse 

 — a slight difference in punctuation and colour of underside — appear 

 hardly satisfactorily specific, and we have been unable to discover any 

 authentic specimen of it in any British collection, the very few repre- 

 sentatives of the species being usually resolvable into forms of either 

 L. memhranaceus or L. hallotse. We consider, therefore, that it is 

 desirable for the present to delete L. cerinus from our British list. 



Sbct. VIb. — Species small (not exceeding- 2 mm. in average length), testa- 

 ceous with siitiiral line rufescent, narrow, sometimes almost obsolete; 

 punctuation fine or very fine. 



I. — Antennae and posterior tibise moderate in length. 



1. Body concolorous, very pale, posterior femora distinctly black, at least 



on apical half L. ochroleucus. Marsh. 



2. Body-colour variable, or testaceous, posterior femora only slightly 



darker. 



A. — Length about 2 mm. ; body generally concolorous. 



a. Pimctuation of elytra almost obsolete ; form more 



oval; posterior tibial spurs very short... 



L. gracilis, Kutsch. 



b. Punctuation of elytra fine, but veiy distinct ; form 



more oblong ; posterior tibial spurs moderately 



long L. pellucidus, Foiidr. 



B. — Length 1-1 i mm. ; thorax and elytra often differing in 



colour L. pratensis, Panz. 



II.— Antennae and posterior tibiis very long L. succineus, Fovidr. 



L. OCHROLEUCUS, Marsh. [Eut. Brit. I, p. 202] ; Foudr. [Mon. p. 208] ; 



Weise, [Nat. Ins. Deutschl. vi, pp. 1012, 1024] ; All. [Mon. p. 405]. 



Syn. — albellus, Dumeril (Diet. Nat. I, p. 524). 



Oblong-ovate, somewhat depressed, concolorous pale testaceous, except 

 syes, apices of antennae, and posterior femora. 



Head almost smooth between eyes. Antennae : long, pale testaceous, with 

 ast five or six joints fuscous. Thorax : transverse, bordered, obsoletely punc- 

 tured, hardly alutaceous, occasionally with slightly darker lateral markings. 

 iSlytra : exceedingly finely alutaceous, punctuation rather close, but very weak, 

 i^ometimes almost obsolete, suture unmarked, apices separately obtusely rounded, 

 somewhat dehiscent. Legs : concolorovis with body, except posterior femora, 

 which are entirely, or with apical half, quite black ; posterior tibial spurs 

 rather short, but longer than in L. gracilis ; first anterior tarsal joint very 

 slightly enlarged in S • Underside slightly darker testaceous. Usually winged . 



Length, 2-21 mm. 



^ U 2 



