170 
MODERN SYSTEM. 
Sp. 1. Thym. ferruginous. 
Inhabits beneath the bark of trees. 
Genus 09. NITIDULA. Linn., Fair., Payk., Olivier, Marsh.! 
Leach. 
Mandibles prominent : body short, depressed ; back plain : thorax gene- 
rally broad: antenna: with the third joint twice as long as the second; 
club abrupt anti orbicular, composed of three joints. 
Sp. 1. Nit. bipmtulata. Body elliptic, brown, blackish : thorax emargi- 
nate ; elytra with a red spot on each. 
Nitidula bipustulata. Linn., Lair., Fair., Marsh. 
Sp. 2. Nil. disenidea. (Pi. 2. fig. 5. a. antenna magnified .) 
Kit. discoidea. Marsh. 
Inhabits dead carcases, dried bones, loleti, and under the bark of 
trees. 
Genus 100. TPS. Fair., TTerbst, Gyll., Leach. Nitidula. Lair. 
Mandibles prominent, strong, and much bent at their points : body 
elongate-quadrate ; back plain : thorax transverse-quadrate : art' 
ie.nna with the third joint twice as long as the second ; club abrupt 
and orbicular, composed of three joints. 
Sp. 1 . Jps yuadripustulalus. 
Inhabits the decayed stumps of trees under the bark. 
Genus 101. BITURUS. Latr., Leach. Ips. Olivier. Dermestes. 
Geoff., IJc Geer, Fair. 
Antenna with the third joint riot, twice as long as the following joint ; 
club composed of three joints: mandibles prominent: body oval ° r 
oblong; back plain: thorax broad behind, with the angles pointed: 
elytra covering the abdomen. 
Sp. l. Bit. tomentosus. Antenna' shorter than the thorax : thorax 
short, the posterior angles broadly depressed, reflected; body ovab 
black, with a reddish-yellow down ; antenna: and feet yello' f 
red. 
Inhabits the white-thorn and umbelliferous plants in May and June. 
Genus 102. CATERETES. Hcrbst, Latr., I.each. BrachypH* 
bus. Kugellan. Deemestes. Linn., Fabr. Strong yll’S' 
Hcrbst. Nitidula. Oliv. Cercus. Latr. 
Antenna with the third and following joint scarcely differing in length ! 
club compressed, perfoliate, obconie, composed of three joints; tho- 
rax rounded, without angles behind: elytra very short: body de- 
pressed, back plain : mandibles prominent. 
bp. 1. Cat. rufilabris. Black, shining, with gray down* 
Cercus rufilabris. Latr. 
Inhabits junci near Hull. 
