COLEOPTERA. 



421 



quite large, and there is but a pair 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. 346. 



in the previous suborders. They are either filiform where the 

 joints are cylindrical, as in the Car ab idee , not enlarging 

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



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

 sternum; p, episternum of prothorax; p', epimeron of prothorax; q, g', Q", coxae; 

 r, r 1 , r", trochanters ; s,s',s", femora or thighs; t, ',", tibite; v, vV? 5 ,etc., ventral 

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

 x, mesoternum ; y, episterna of metathorax; y', epimeron of metathorax; z, meta- 

 sternum. 



FIG. 34G, upper surface of Necrophorus Americanus. (After Leconte.) a, man- 

 dible; b, maxillary palpus; c, labrum; d, epistoma; e, antennse; /, front; y, vertex; 

 h, occiput ; i, neck ; /,-, eye ; I, pronotum (usually called prothorax) ; m, elytron ; n, 

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

 thorax); <7, femur or thigh; r, r, r, tergites of the abdomen; s, s 2 , s 3 , spiracles or 

 stigmata ; t, t', t", tibiae ; v, tibial spurs ; w, tarsi. 



