532 CLASS vm. 



joints. Feet with tibiae mostly spinose, tarsi with five joints, mor< 

 rarely with four. Body convex, oval. 



Sub-genera: Hypocyptus SCHUEPP., Tachyporus GRAVEN., Tachinu 

 GRAVENH., Boletobius LEACH, &c. Comp. ERICHSON, pp. 213 289. 



Sp. Tachyporus analis GRAV., Staphyl. obtusus L., PANZER Deutschl. Im 

 Heft 11, Tab. 16 ; Tachyporus marginatus GRAY., Staphyl. hypnorui 

 FABR., PANZER Deutschl. Ins. Heft 27, Tab. 17, GUERIN Iconogr., In, 

 PI. 10, fig. 9, &c. 



Section II. Pselaphina. Abdomen with five segments, rotun 

 date, obtuse. Antennae clavate. Tarsi triarticulate. 



Compare C. AUB Pselaphiorum Monographia, GUERIN, Magasin c 

 Zool. 1833, Ins. PI. 78 94; H. H. SCHMIDT Diss. inaug. zool. c 

 Psdaphis Faunce Pragensis cum anatomia Clavigeri. Pragse, 1836. 8vo. 



They are small insects that live under stones, bark of trees, decayin 

 leaves, and in ants' nests. 



A. Antennce with joints indistinct, or with single joint, thick, truncated. 



Articerus DALM. 



B. Antennce with six joints. 



Claviger PREYSSLER. Eyes none (ocelli two SCHMIDT). 

 of tarsi simple. 



Sp. Claviger testaceus PANZER Deutschl. Ins. Heft 9, Tab. 3, DUMRIL Con. 

 gen. s. 1. Ins. PI. -22, fig. 5. Compare P. W. J. MUELLER Beitrdge zurNatu\ 

 gesch. der Oattung Claviger, GERMAR'S Magazin der Entomol. in. i8i{ 

 pp. 69 112. 



C. Antennce with eleven joints. 



Pselaphus HERBST. Maxillary palps mostly elongate, clavat( 

 Eyes two. 



Sub-genera, a) With, single claw of tarsi : Pselaphus, HERBS 

 (in part), Bryaxis LEACH, Bythinus, Tychus ejusd., Euplectus ejus< 

 6) With two claws of tarsi : Chennium LATR., Tyrus AUBJ 

 Batrisus AUBE ; whom see 1. 1. Comp. also ERICHSON, Die Kdfer d( 

 Mark Brandenburg, i. pp. 263 281. 



Sp. Chennium bituberculatum, DUM^RIL Cons. gen. s. I. Ins. PI. 23, fig. 4, & 



Family LX. Clavicornia (Clavicornes LATR., HisteridcB, By r i 

 rhulce, Dermestidce, Silphidce, &c. LEACH). Antennae mostly wit 

 eleven joints, terminated by a club perfoliate or solid, or gradual! 



