176 MODERN SVSTKM. 



B. Mandibles zuithout dentkulationa on their inlernul edge. Head in- 

 serted into the thorax more or less. 



•a. Antennae wide apart, inserted before the eyes ; the fifth and 

 following joints longer than broad : tibiae spinose. 



Genus 113. TACIIINUS. Grav., Latr., Leach. Oxyporus. Fubr. 

 Staphvlinus. Linn., Geoff., Oliv., Payk. 



Palpi filiform. 



Sp. 1. Tach. riifipes. Black, shining, smooth : antennae fuscous : ely- 

 tra and feet generally brown ; external apex of the elytra paler. 



Staphylinus rutipes. PuykuU. Tachiuus rufipes. Grav., Latr. Oxy- 

 porus rulipes. Fabririus? 



Inhabits ihc dung of oxen and horses. 



(^)bs. — xiic following may be considered as types of the 



Genus Taciivxus. Grav. 



Sp. 1. Tach. subterrancus. 



Genus Bolitobius. Leach. 

 Tach. anal is. 



Genus 11 J. TACIIYPORUS. Grav., Latr., Leach. Staphylinvs. 

 Linn., Oliv., Geoff], Marsh. Oxyporus. Fubr. 

 Palpi subulate. 



Sp. 1. Tach. ch7yson>elimis. Black, shining, smooth : thorax, elytra 

 (base excepted), and feet, red yellow: thorax somewhat transverse: 

 abdomen with the extremity truncate. 

 Tachyporus chrysomelinus. Grav., Latr., Leach. Oxyporus chryso- 



melinus. Fabr. Staphylinus chrysomelinus. Linn., Marsh. 

 Inhabits t]owers, the roots of grass and moss. 



b. Antenna^ more or less approximate, inserted at the anterior 

 internal margin of tlie eye, fifth and following joints broader 

 than long : tibite not spiny. 



Obs.— Tachyporus Granum. Gravenh. is the type oftlie Genus Cypiia. 



Kirby, 



Genus 115. ALEOCIIARA. Knoch, Gravenh., Lair., Leach. Sta- 

 phylinus. Linn., Fabr., Geoff"., De Geer, Oliv., Marsh. 

 Head with the hinder part received into the thorax. 

 Sp. 1. Aleo. canaliculata. Red fuscous, feet paler: head and the two 

 last joints (save one of the abdomen), black: elytra together trans- 

 verse-quadrate ; back of the thorax excavated with an impressed 

 longitudinal line in the middle. 

 Alcochara canaliculata. Grav., Latr. Staphylinus canaliculatus. Fahr. 

 Inhabits sandy banks and under stones. 



