4'2'2 ON THE TRIBES 



such types we have, First, a Carnivorous Hexapod larva, 

 with an elongate, linear and flattened body, having a large 

 head armed with two sharp falciform m andibles, and fur- 

 nished with six granular eyes on each side. Example : Ca- 

 rabusox Dytiscus. Secondly, A Herbivorous Hexapod lar- 

 va with a long and almost cylindrical body, so fashioned that 

 the posterior extremity being curved under the breast, the 

 animal, when at rest, necessarily lies like an lulus on its side. 

 Example: Petalocerous larva. Thirdly, Apod larva, hav- 

 ing scarcely the rudiments of antennae, but which is fur- 

 nished instead of feet with fat fleshy tubercles, which, when 

 continued along the back and belly, give the animal a facility 

 of moving in whatever way it may be placed. Example : 

 Curculio or Cerambyx. Fourthly, Hexapod and di- 

 stinctly Antenniferous larva, with a subovate rather coni- 

 cal body, of which the second segment is longer and of a 

 different form from the others, so as to give the appear- 

 ance of a thorax. Example : Coccir/ella or Chrysomela. 

 Fifthly, Hexapod Antenniferous larva of an oblong form, 

 having like the former vestiges of a thorax, besides two or 

 more articulated or inarticulated setaceous or corneous 

 appendages to the last segment of the abdomen. Exam- 

 ple : Meloe ? 



Every Coleopterous larva which I have had the oppor- 

 tunity of observing may be assimilated to one or other of 

 these types, which it was scarcely possible to look at with- 

 out being reminded of the Ametabola. Indeed, it occurred 

 to me almost immediately, that I had Chilopodiform, Chi- 

 lognathiform, Apod or Vermiform, and Anopluriform 

 larva?, together with a fifth form, of which J. even now 

 know little except from the examination of two or three 

 larva? collected by myself, together with the almost mar- 



