1898.] 



of the Coleopfera of South Africa. 



413 



ADDITION. 



Eeichenbachia o'neili, n. sp. 



Amongst the specimens of B. rivularis which the Rev. J. A. 

 O'Neil sent me from Uitenhage, I noticed one or two specimens 

 lighter in colour and differing in some respects from the type, but 

 I considered them first as a mere variety. However, I drew the 

 attention of the Eev. J. A. O'Neil to this fact, and later on he kindly 

 sent me another lot of Bciclicnhachia collected together, and contain- 

 ing no less than 225 examples, including B. sulcicornis, Raffr., 

 B. rivularis, Raffr., and what I considered at the time to be a variety 

 of rivularis, but which I have now to consider a distinct species. 



It is rather curious to note that out of 225 specimens collected 

 together 75 proved to be sitlciconiis, 130 rivularis, and 20 the new 

 species which I name after its captor. 



B. o'neili being of the same size and the same shape as B. rivularis, 

 a comparative description will prove useful : — 



rivularis, Raffr. 



Antennae : joints eight and 

 nine a little longer than l)road, 

 tenth as long as broad, eleventh 

 oblongo-ovate. 



Carinules of the first dorsal 

 segment of the abdomen rather 

 short and generally very diver- 

 gent, including in width from 

 one-fifth to little more than one- 

 fourth of the disk. 



Metasternum bearing, close to 

 the intermediate coxie, a large 

 and blunt tubercle. 



Last ventral segment of the 

 male with a faint impression. 



o'neili, n. sp. 



General coloration very much 

 the same, but always lighter. 



Antennae : joints eight, nine 

 and ten transverse, eleventh 

 briefly ovate, thick. 



Carinules of the first dorsal 

 segment of the abdomen gene- 

 rally more elongate and less 

 divergent, including in width 

 from one-seventh to one-sixth 

 of the disk. 



Metasternum without tubercle 

 close to the intermediate coxae, 

 from which it is divided by a 

 transverse groove. 



Last ventral segment of the 

 male without any trace of im- 

 pression. 



