330 MANDIBULATA. COLEOPTERA. 



B. Thorax with a transverse impression behind. 



Sp. 6. Mercurialis. Ovali-hemisphasrica, nigra nitida, supra nigro-ccerulescens, 

 subtilissime punctulata, antennis basi rufescentibus, elytris functulatis, thorace 

 postice strigd abbreviatd impressd. (Long. corp. | — 1^ lin.) 



Ha. Mercurialis. Hellwig.—Steph. Catal. 219. No. 2250. 



O val -h emispheric, Z>/acA; beneathj shining; above Aee^p-blue, very finely punc- 

 tulated : thorax with an abbreviated impressed striga behind, terminating 

 on each side in a rather deep fovea : elytra finely, but obsoletely punctulate : 

 legs black ; hinder femora moderately thick and bluish : antennae dusky- 

 black, with the base rufo-piceous. 



Not uncommon in the sandy hedges about Darenth-wood, and 

 near Hertford : also found in the vicinity of Bristol. " Not un- 

 common (near Swansea)." — L. W. Dillwyn, Esq. 



Genus CCCCIII. — Mniophila * miM. 



AntennoE moderate, 1 1-jointed, distinctly thickening towards the apex ; the basal 

 joint elongate, curved, and subclavate ; second subglobose ; four following 

 minute subnodose ; seventh larger, obconic truncate ; eighth minute ; three fol- 

 lowing forming an elongate club, the terminal joint being largest and ovate, 

 the other two obconic. Head small, deeply inserted in the thorax, the latter 

 somewhat semicircular: elytra broad, convex, obtuse behind: anterior legs 

 slender, posterior Jemora moderately incrassated, iibice simple : tarsi short. 



This pretty little genus is well distinguished from the other sal- 

 tatorial Gaierueidse by the singularity of its antennae, of which the 

 eighth joint is minute, as in many of the fungivorous insects, as 

 Leiodes, &c.; the posterior femora are also proportionately more 

 slender, and the insect jumps but feebly. 



Sp. 1. Muscorum. Ovato-globosa, aeneo-atra, antennis pedibusque rufis, elytris 

 substriato-punctatis. (Long. corp. ^ — | lin.) 



Ha. Muscorum. Ent. Hefte. ii. 48. pi. 2./. 12. 



Ovate-globose, of a shining brassy-black : elytra punctate, the punctures some- 

 what disposed in strise and not very deep : antenns and legs entirely rufous. 



Not very common : I possess a specimen captured by Mr, 

 Ingpen. 



* JIwjv, niuscus ; (p;>.<j;, amicus. 



