530 CLASS VIII. 



in the frons between the eyes, with eleven joints, last three joint 

 incrassated. Feet slender. 



A. Tarsi with five joints. Labrum entire. 

 Sub-genera : Dianous LEACH, Stenus LATR. 



B. Tarsi with four joints. Labrum denticulate or serrate. 

 Euaesthetus GRAVENH. 



Sp. Stenus biguttatus, Staphylinus biguttatus L., DUMERIL Cons. gen. s. * 

 Ins. PL 3, fig. 4, PANZER Deutschl. Ins. Heft 1 1, Tab. 1 7, &c. 



Compare THION, Description des organes de la manducation chez /< 

 Stenes, Ann. de la Soc. Entom. iv. 1835, pp. 153 i6S } PL 3 B. 



Oxytelus GRAVENH. Head exsert, with base narrower. Labrun 

 entire, horny, mostly enlarged at the apex on both sides by i 

 membranous lacinia. Maxillary palps much shorter than head, wit] 

 fourth joint distinct, often subulate. Anterior tibiae mostly spinose 

 Head in many horned. Tarsi with last joint very long. 



A. Tarsi with five joints. 



Megalops DEJ. Antennae with ten joints, clavate. 

 Osorius LEACH. Antennae with eleven joints, filiform. 



B. Tarsi with three joints. Antennae with eleven joints. 



Sub-genera : Oxytelus GRAV. (in part), Bledius LEACH, Platysthetu, 

 MANNERH., Coprophilus LATR. and some others. 



Compare LATREILLE Considerations sur la tribu des Denticrures, Nouv 

 Ann. du Museum, i. 1832, pp. 77 92 ; ERICHSON 1. 1. pp. 759 822. 



Sp. Oxytelus tricornis GRAVENH., PANZER Deutschl. Ins. Heft 66, Tab. 17; 

 Oxytel. piceus, Staph. piceus L., PANZER Deutschl. Ins. Heft 27, Tab. 12 

 Oxytelus (Coprophilus) rugosus, GUERIN Iconogr. Ins. PI. x. fig. 2, GERMAJ 

 Faun. Ins. Europ. Fasc. xv. Tab. 2, &c. 



Piestus GRAVENH. 



Prognatha LATR. (Siagonium KIRBY), Leptochirus GERMAR, &c. 

 Compare ERICHSON 1. 1. pp. 823 841. 



Omaliwn GRAVENH. Head porrect, scarcely constricted at th 

 base. Labrum transverse, horny, simple or supplied with a mem 

 branous border at the apex. Antennae with eleven joints, straighl 

 filiform. Elytra mostly longer than pectus, sometimes coverin ; 

 a large part of abdomen. Tarsi with five joints. Body depressed. 



