1892.] to the South African Coleopterous Fauna. 23 



Family : DYTISCIDJE. 



Gen. Hydaticus. Leach. 



79. H. Leander. Rossi. 



Recorded from Cape Colony, Natal, Transvaal. 



Gen. Cybister. Eschsc. 



80. C. TRI-PU»CTATUS. OHv. 



„ from all parts of South Africa. 



•81. C. BI-NOTATUS. Klug. 



„ from Lake Nyassa (teste Sharp). 



82. C. dytiscoides. Sharp. 



,, from Madagascar (teste Sharp). 



Family HYDROPHILIDJE. 



Gen. Hydrophiltjs. Geof. 



83. H. mundus. Bohem. 



„ from the Transvaal, and the Zambeze River. 



Gen. Spercheus. Kuggelm. 



84. S. AUSTRALIS. 



Pallido-flavus, sub-nitidus, capite, plaga dorsali in proihorace 

 liturisque nonnulis sub-evanescentibus , in elytris, nigris, his concinne 

 punctato-striatis, interstitiis leviter rotundatis. 



Long. 4J, lat. 2 mm - 



Pale-yellow, convex, hairless, head black, with a median discoidal 

 patch of the same hue on the prothorax ; elytra very convex, striated, 

 the strise deeply and closely punctured with the intervals smooth, 

 slightly and equally rounded, and with a few elongated, evanescent, 

 longitudinal, brownish-black patches. 



