THE 

 SECOND GENERAL SECTION 



OF 



COLEOPTERA. 



Heteromera. 



The second general section of the coleoptera Hetero- 

 mera, has five articulations in the first four tarsi, and one less 

 in the other two tarsi. 



These insects feed all on vegetable substances. M. Leon 

 Dufour (Ann. des Sciences Nat. vj. 181) has observed, that 

 their male organs have a texture which approximates them 

 to the scarabeides and the clavicornes ; their testicle consists 

 of spermatic capsules, or little bags. 



We shall divide this section into four great families,* the 

 first two of which have, in the apparatus for the excremen- 

 tary secretion, discovered in many genera by the same M. 

 Dufour, some analogy with the first pentamerous coleoptera ; 

 the chylific ventricle is often beset with papillae. Many of 

 these insects present, moreover, vestiges of another secretory 

 apparatus, of which there are not many examples among the 

 coleoptera, that which is distinguished by the denomination 



• In a natural order, the fourth is allied to the first, through Helops, 

 which Linnaeus places in his genus, Tenebrio. It is evident that Tenebrio 

 conducts to Phaleria, Diaperis, &c., or to our second family. 



