CLASS V. INSECTA. 179 



B. Maxillary palpi with the last joint clavate. 



Genus 121. BRYAXIS, Kiwch, Leach. Pselaphvs, Fam. III. A. 

 Keich. 

 Antenna with the first and second joint enlarged and nearly cylindri- 

 cal; third and following to the seventh nearly cylindrical; the fifth 

 the longest, eighth small and subglobose, ninth and following gra- 

 diialh' increasing: muxilluTy palpi with the first joint clavated, nar- 

 row at the base; second nearly globose; third conical. 



* ForcoltE of the thorax connected bj/ a furrow. Antenna zcith the 

 apex of the last joint acute, third and four following joints, elongated. 

 Sp. 1. Brj/. longicornis. Leach, Zool. INIisc. iii. 85. 

 Inhabits the roots of grass on the sloping banks Battersea fields. 



** Thorax zcith the furrozv very conspicuous. AntenncB uith the 

 last joint nearly obtuse ; the third and following to the seventh, short, 

 (Xinth subglobose; tenth lenticulated.) 



Sp. 2. Bry. impressa. 



Ps. iinpressus. Reich., Monog. Ps. t. 2. /. 1j. 



Inhabits Norfolk. 



C. Maxillary palpi with the last joint clavated. 



Genus 122. PSELAPHUS. Herbst, Latr., Leach, ^r. Pselaphus, 

 Fam. I. Reichcnbach. 



Antennee with the first and second joint elongated and nearl}' cylindri- 

 cal; third and following to the eighth nearly globular and equal; 

 ninth and tenth increasing, nearly equal andglobidar; eleventh and 

 remainder gradually increasing: maiillary palpi w'lih the first joint 

 filiform, the apex aUiiost almiptly clavated; second nearly globose; 

 third with the apex gradually clavated. 



.Sp. 1. Psel. Herbstii. {PI. -i.fig. 15.) magnified: the line beneath shows 

 the natural size. 



Inhabits Ijanks and river sides. 



Obs. — The Psclaphi arc obtained bj seeking at the roots of grass, in 

 sand-pits, &c. but being so exceedingly minute they easily escape the 

 eye of the entomologist luilcss he looks very close to the ground ; 

 the usual practice is either to sit or lie down, and by this means 

 many highly interesting and rare insects may be taken whilst the 

 entomologist rests from a more laborious mode of collecting, 



Fam. XIII. ScYDMiENiDiE,. Leach. 



PaLPatores. iMtreille. 



Body ovoid, rounded at each extremity : palpi very long : tarsi short : 



elytra hard, covering the abdomen : antenmt gradually thicker to- 



wards their extremities. 



M 2 



