(Page 594) 



107, Genus Lathrimaeum Er. 



(Erichs. Kaf. Mk. Br. I, 624; Jen. Spec. Staph. 868; Kraatz Ins. D. 

 II, 943; Thorns. Skand. Col. Ill, 195; Fey Brevlp. 1880, 119; Janglb. 

 Kaf. M. II, 721). 



From 01 ophrum which Lathrimaeum mainly resembles in the short, broad 

 and posteriorly broadened form of the body, in the structure of anten- 

 nae and maxillary palpi, in the sculpture of pronotum, elytra and abdomen, 

 also in the structure of tarsi, it is separated by the following devi- 

 ations: 



The head is constricted behind, and the forehead before the ocelli 

 of the vertex, with two oblique, distinct impressions, and two smaller 

 ones between antennal base; the antennae are distinctly, though feebly 

 thickened distally; pronotal hind corners obtuse, their slightly up- 

 turned, in their full length impressed set off, margined side-rims with 

 a fovea at middle; elytra are most often still longer than in Olophrum , 

 and occasionally covers almost the entire abdomen; middle and hind ti- 

 biae are singly and finely spiniferous. 



Of those in North and Middle Europe found 4 species, which live on 

 damp or semi-damp ground, 3 are denoted also in this country, the fourth 

 may possibly yet be found and i6 therefore included in the following. 



Key to Species. 

 1. Pronotal anterior margin rather strongly arcuately produced. L. 3.5 



-4 mm 1. L. melanocephalum 111. 



Pronotal anterior margin very flatly produced 2. 



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