564 INSECTA. 



Triplax, Tritoma, Fab. 



These Insects differ from the Erotyli in their antennae, which are 

 almost granose, and terminated in a shorter and ovoid club, and in 

 their maxillae, of which the interior division is membranous with a 

 single and small terminal tooth. 



Those which are almost hemispherical or nearly round form the 

 genus Tritoma of Fabricius. Such is the 



T. bipustulatwn, Oliv., Col. 89, bis, I, 5. Black, with a large 

 red spot at the base of each elytron. In the Boleti and Mush- 

 rooms^). 

 Those which are oval or oblong form the genus Triplax proper of 

 the same naturalist(2). 



In the other the last joint of the maxillary palpi is elongated, and 

 more or less oval. 



Laxguira. Lat. Oliv. Trogosita, Fab. 



Where the body is linear and the antennal club consists of five 

 joints. 



They are all foreign to Europe(3). 



Phalacrus, Payk. Jlnistoma, IHig. Fab. Jlnthribus, Geoff. Oliv. 



Where the body is almost hemispherical and the club of the an- 

 tennae consists of but three joints(4). 



On flowers and under the bark of trees. 



In the remaining Clavipalpi all the joints of the tarsi are simple, 

 and the body is nearly globular. They form the genus 



Agathidium, Illig. Jlnisotoma, Fab. (5) 



In the fourth section of the Coleoptera, that of the Trime- 

 ra, there are but three joints to all the tarsi. The Trimera 

 form three families. Those of the two first are closely related 

 to the last of the Tetramera. Their antennae, always com- 



(1) Fub., Syst. Eleut. 



(2) Fab., lb. See Oliv., Col. V, 89, bis, genus Triplax. The Tritomx, Geoff, 

 are Mycetophagi. 



(3) Lat., Gener. Crust, et Insect., Ill, p. 65, I, xi, 11; Oliv., Col. V, 88. Add 

 the Trogositx elongata and Jiliformis, Fab. 



(4) See Gyll., Insect. Suec, and Sturm, Faun. Germ., II, xxx, xxxii. 



(5) See the Faun. Germ., Sturm, and the Insect. Suec, Gyll., &c. 



