37 



the country from whence this insect was received. 

 It is evidently a South American species, and 

 inhabits Cayenne. 



Sp. 19. Pini. — A Pissodes of Germar. Linneus 

 informs us, " Vidi copula junctas, C. Pini et 

 Abietis." Now, according to the modern arrange- 

 ment of the genera of this family, the former 

 belongs to Pissodes of Germar, the latter to an 

 Hylobius of the same author. In the catalogue of 

 the Baron De Jean nearly fifty genera intervene. 

 The above arrangement therefore must be ex- 

 tremely artificial, at least if there is any truth in 

 the assertion that only species of the same genus 

 will copulate. Here is evidence to contradict that 

 assertion; and other instances might be adduced 

 to corroborate the authority of Linneus, viz. that 

 insects of different genera will mingle. As to any 

 result arising from it, that appears to be, accord- 

 ing to my views, altogether improbable. Such 

 opinions I have heard brought forward, certainly 

 not substantiated ; and should they be, what genus 

 of authors will stand, probably not one. 



Sp. 34. Paraplecticus. — Now a Lixus of Fa- 

 bricius. The following short notes are attached to 

 this species, — " Larva intra caulem, saepe sub 

 aqua haeret," which circumstance I can substan- 

 tiate ; " Equis Paraplegia caussari dicitur, anti- 

 dotum stercus suis." With regard to the latter 

 remarks, I am not aware that they have of late 

 been observed, and therefore introduce them here 

 with the hopes of ascertaining the fact. 



