176 MODERN SYSTEM. 



B. Mandibles without dent iculat ions on their internal edge. Head in- 

 serted into the thorax more or less. 



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



following joints longer than broad : tibiae spinose. 



Genus 113. TACHINUS. Grav., Latr., Leach. Oxyporus. Fahr. 

 Staphvlinus. Linn., Geoff., Olio., Pai/k. 

 Palpi filiform. 



Sp. 1. Tach. rufipes. Black, shining, smooth: antenna; fuscous: ely- 

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

 Staphylinus rufipes. Paykull. Tachinus rufipes. Grav., Latr. Oxy- 

 porus rufipes. Fabricius? 

 Inhabits the dung of oxen and horses, 



Obs. — The following may be considered as types of the 



Genus Tachynvs. Grav. 



Sp. 1. Tach. subterraneus. 



Genus Bolitobius. Leach. 

 'J'ach. analis. 



Genus 114. TACHYPORUS. Grav., Latr., Leach. Staphyliicvs. 

 Linn., Oliv., Geoff., Marsh. Oxyporus. Fabr. 

 Palpi subulate. 



Sp. 1. Tach. chri/someUnus. Black, shining, smooth : thorax, elytra 

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

 abdomen with the extremitj^ truncate. 

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



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

 Inhabits flowers, the roots of grass and moss. 



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



internal margin of the eye, fifth and following joints broader 

 than long : tibiae not spiny. 



Obs. — Tachyporus Granum. Gravenh. is the t\'pe of the Genus Cypha. 

 Kirby. 



Genus 115. ALEOCHARA. Knoch, Gravenh., Latr., Leach. Sta- 

 phylinus. Linn., Fabr., Geoff., Be Geer, Oliv., Marsh. 



Bead with the hinder part received into the thorax. 



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

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

 verse-quadrate ; back of the thorax exca\'ated with an impressed 

 longitudinal line in the middle. 



Aleochara canaliculata. Grav., Latr. Staphylinus canaliculatus. Fabr. 



Inhabits sandv banks and under stones. 



