450 CLAVICORNIA — TROGOSITIDAE. 



them rather larger and hooked. Body oblong, elongate. 



Trogosita, 01. 



S, Inner lobe of maxillae distinct, with a horny hook at 

 apex. 



Club of antennae three-jointed, oblong, compact. Ligiila 

 slightly emarginate. Tibiae bare, with very small apical 

 spines, those on anterior pair simple. Body roundish, 

 evenly arched above, thorax and elytra with broad separate 

 border. Thymalits, Latr. 



Black ; base of elytra nearly to middle and a spot before 

 their apex, antennae and legs yellow-red. L. 2 1. Not 

 common. N. elongata, Lin, 



Trogosita, 



Flat. Black or red-brown. Thorax broader than long, 

 much narrowed behind ; elytra with punctured striae, in- 

 terstices with a row of fine punctures near each stria. L. 

 3 — 5 1. Common. T. mauritanica, Lin. 



Thytnahis, 



Upper-side bronze, with margin dark red, pubescent ; 

 under-side brown-red. Elytra punctured in rows, with 

 interstices diffusely and very finely punctured. L. 3 1. 

 Common. T. limbattis, Fab. 



COLYDIIDAE. 



A, Posterior legs approximated. 



a. Ventral abdominal segments equal in length. 



Synchitides. 



h» First ventral segment of abdomen longer than rest. 



Colydiides. 

 Ji, Posterior legs standing apart. 



a. Last joint of palpi thickened and obtusely pointed at 



apex. 

 First ventral abdominal segment not longer than second, 

 third and fourth smaller than the rest ; all coxae placed 

 apart. Myrmecoxenides. 



h. Last joint of palpi small, awlshaped. 



