COLEOPTERA. 



421 



quite large, and there is but a paii* of ocelli, when present, or 

 there may be but a single ocellus. The antennae are generally 

 inserted just in front of the eyes, and rarely between them as 



Fig. 340. 



in the pre^^ous suborders. They are either filiform where the 

 joints are cylindrical, as in the Carabidce, not enlarging 

 towards the end, or serrate, as in the Elateridm, where the 



buccal opening; I, giila or throat; m, »», buccal sutures; n, gular suture; o, pro- 

 sternum; p, episternum of protliorax; p', epimeron of protliorax; q, q', q", coxa;; 

 r, ri, r", trochanters; s,s',s", femora or thighs; t, t',t", tihisd; v,v^,v^,etc., ventral 

 abdominal segments; w, episterna of mesothorax (the epimeron is just beliind it); 

 X, mesoternum; y, episterna of metathorax; y', epimeron of metathorax; s, meta- 

 stemum. 



Fro. .340, upper surface of Necrophorus Americanus. (After Lccontc.) a, man- 

 dible; 6, maxillary palpus; c, labrum; d, epistoma; c, antennas; /, front; ff, vertex; 

 h, occiput; i, uc(;k; /.•, eye; I, pronotum (usually called protliorax); ?«, elytron; n, 

 hind wing; o, scutelhim (of mesothorax) ;/>,metanotum (or dorsal surface of meta- 

 thorax); 7, femur or thigh ; r, r, r, terprites of the abdomen; s, s*, s^, spiracles or 

 Btigmata; t, t, t", tibia; v, tibial spurs; lo, tarsi. 



