1898.] 



of the Celeoptera of South Africa. 



389 



Synopsis of Species. 



A^. First dorsal segment of the abdoraen much larger than the 

 others. 



B^. Antennae slightly clavate, the penultimate joints (more espe- 

 cially the ninth) larger than the intermediate ones . . . . caviceps. 



B'. Antennos not clavate, the three penultimate joints (especially 

 the ninth) smaller than the intermediate ones. 



C^. Third joint of the antennae strongly transverse dejplanata. 



C. Third joint of the antennae at least as long or longer than 

 broad, triangular or globose, never transverse. 



D=. Longitudinal carina of the head not extending on the frontal 

 part, ending on the vertex. 



E^. Longitudinal sulcus of the prothorax generally wanting or 

 exceedingly faint and hardly conspicuous when it exists. 



F-. Antennae short and thick, ninth and tenth joints transverse. 



G-. Elytra hardly longer than broad ; head rather long, not at 

 all attenuate (male), little attenuate (female) ; longitudinal 

 sulcus of the prothorax very faint and sometimes wanting frontalis. 



G'. Elytra longer than broad ; head short, much attenuate in 

 front ; longitudinal sulcus of the prothorax always entirely 

 wanting calcarata. 



F'. Antennae much more slender, ninth and tenth joints globose, 

 not transverse, or hardly so. 



G-. Head large and thick, sides rounded, the sulci shallow, 



arcuate, the carina on the vertex obsolete and very short incerta. 



G\ Head smaller, sides oblique, sulci deep, large and oblique, 



the carina on the vertex long and strong variabilis 



E'. Longitudinal sulcus of the prothorax never absent, always 

 very conspicuous. 



F^. Prothorax strongly cordiform, as long or nearly as long as 

 broad, longitudinal sulcus not very deep but very con- 

 spicuous, transverse one angulate in the middle ; shoulders 

 generally attenuated in both sexes. 



G^. Antenuce more slender, ninth joint globose, colour generally 



darker, piceous-brown . . armata. 



&. Antennae much thicker, ninth joint transverse, colour fer- 

 ruginous ; sometimes the shoulders are quadrate in both 

 sexes nasuta. 



F'. Prothorax very little cordate, broader than long, longitudinal 

 sulcus complete and deep, transverse one straight; shoulders 

 very quadrate in both sexes cruciata. 



D'. Longitudinal carina of the head extending from the neck to 



the frontal part sulcatula. 



A^ First dorsal segment of the abdomen not larger than the 

 following ones. 



B-. Prothorax variable but never transversely dilated, and 

 broader than the elytra. 



C-. Head with two foveas and two sulci. 



D-. Antennae with the joints (at least the intermediate ones) 

 transverse. 



