m 



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, Avith a 

 single and small terminal tooth. 



Those which are almost hemispherical or nearly round form the 

 genus Tritoma of Fabricius. Such is the 



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

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

 Mushrooms *. 



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

 the same naturalist f. 



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

 more or less oval. 



Languira, Lat., Oliv. — Trogosita, Fab. 



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

 joints. 



They are all foreign to Europe if. 



Fhxlacrvs, Payk. — Anistoma, Illig.,Fab. — Anthribus, Geoff. Oliv. 



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

 tennae consists of but three joints §. 



On flowers and under the bark of trees. 



In the remaining Clavi palpi all the joints of the tarsi are simple, 

 and the body is nearly globular. They form the genus 



Agathidium, Illig. — Anisotoma, Fab.\\ 

 In the fourth section of the Coleoptera, that of the Trimera, 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 composed of eleven joints^, terminate in a 

 club formed by the three last, which is compressed, and in the form 

 of a reversed cone or triangle. The first joint of the tarsi is always 

 very distinct ; the penultimate is usually bilcbate, and the last, which 

 presents a knot at base, is always terminated by two hooks. The 

 elytra entirely cover the abdomen, and are not truncated. The last 

 of the Trimera, or those of the third family, in this character, as well 



* Fab., Syst. Eleut. 



t Fab., lb. See Oliv., Col., V, 89, bis, genus TnpJax. The Tritoma, Geoff., 

 are Mycetophagi. 



I Lat„ Gencr. Crust, et Insect., Ill, p. 65, I, xi, 11; Oliv., Col., V, 88. Add 

 the Trogositse elongafaanAjiUfurinis, Fab. 



§ See Gyll., Insect. Suec, and Sturm, Faun. Germ., II, xxx, xxxii. 



II See the Faun. Germ., Sturm, and the Insect. Suec, Gyll., &c. 



<|y In Clypeaster I counted but nine; the Insects, however, are so small that there 

 may have been some mistake. 



