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7. Phloeotragus hottentottus imhoflB Boh. (1845). 



This is the West AlVicaii roiireseattitive of hottentottus Schoiih. (lS:i'.)), which 

 is found on the eastern side of the Continent ; albicans Fahrs., from Madagascar, is 

 a ver_v close ally and iicrhaps also not specifically distinct. 



1 (J, 1 ? ; Sassa. 



2 <? cJ, 2 ? ? ; Lukombe, October (A. Roller). 

 1 ? ; Katanga (Lemaire). 



1 ? ; Dima, September (A. Roller). 



8. Phloeotragus heros F. (ISol). 



A common species, of which the collection contains nuraerons specimens from : 

 Lfiopoldville ; Banzyville ; Manyema (l)iipuis) ; Tanganika (Hecq) ; Sassa ; Lnkorabe 

 (A. Roller) ; Ratauga ; Maynmbe ((Jabra). 



Many specimens have a rather strong greenish tint, resembling to some extent 

 the next s]H'cies. P. heros and poliojirns, however, can easily be distinguished by 

 the following differences in strncture : 



a. heros: The upper edges of tlie right and left antennal grooves are nearly 

 parallel. The antenna of the S bears on the inner side small hairs, not short and 

 stumpy spines; and the tenth segment in the ? is broader than long. Tlie elytra 

 are deeply emarginate together at the base ; the basal edge is strongly elevate 

 and this raised margin qnite distinct around the shoulder-angles. The intercoxal 

 process of the mesosternum is broad as far as the middle and then narrows strongly 

 to the apex. 



b. poliojtras : The upper edges of the antennal grooves are strongly divergent. 

 The antenna of the S bears minute sensory cones instead of hairs on the inner 

 surface, and the tenth segment of the ? is longer than broad, the seventh and eighth 

 being somewhat shorter than in the 9 of heros. The prothorax is shorter than in heros 

 and the elytra less coarsely punctured. The base of the elytra is less emarginate and 

 the raised margin much less elevate, being obsolete at the shoulder-angle ; the 

 shoulders as well as the subbasal dorsal callosity are more raised than in heros, and 

 the mesosternal process is much narrower. 



9. Phloeotragus poliopras Jord. (inici). 



3 <?(?; Sassa (Colmant). 



3 (? c? ; Lukombe (A. Roller). 



1 6 ; Lukenge (Fontainas). 



111. Phloeotragus prasinus l>nv. (1802). 



One of the rarer species, which is easily recognised by Hie elytra bearing a 

 black patch at the centre of the lateral margin and a prominent tubercle before the 

 apex. 



2 c? (? ; Sassa (Colmant). 



One of the two specimens is entirely dirty clay-colour on the ujipor surface 

 instead of green. 



II. Phloeoti'agus gigas F. (1801). 



3 (Jc?, 3 ? ? ; Lukombe (A. Roller). 

 1 c? ; Sassa (Colmant). 



