340 Descriptive Catalogue [1896. 



The number of Polyhirma occurring in South Africa is consider- 

 able — not less than twenty-seven out of sixty-three recorded species. 

 They are mostly found in Eastern Africa, reaching from the Cape 

 Colony, on the border of Natal, as far as Somaliland and x\bys- 

 sinia. On the west coast they have not yet been met with further 

 north than Benguela. 



The genus Gypholoha, created by De Chaudoir for the reception of 

 G. alveolata, differs from Polyhirma merely in having the basal part 

 of the lateral lobes of the mentum thickened and projecting as a 

 blunt tubercle, which character is more or less pronounced in several 

 kinds of Polyhirma. 



Syno'psis of Species. 



Prothorax very long and slender, with a median pubescent 

 band ; elytra with a short pubescent macula round the scutellum. 



Elytra with eight costse on each side, intervals with long 



depressions separated by raised transverse lines scrobiculata. 



Intervals with shorter and less deep depressions gracilis. 



Intervals with narrow regular shallow punctures edax. 



Elytra with a sutural white band and an outer marginal one. 



Elytra with eight costse on each side, and the intervals broadly 

 scrobiculate from base to apex divisa. 



A scutellary white patch, and a median and posterior one on 

 each side ccnigma. 



Prothorax elongato-cordate, pubescent in the centre ; elytra 

 with seven costse of nearly equal height on each side. 



Elytra with a sutural white band reaching from the base to 

 one-third of the length, and a supra-apical one on each side ; 

 costse wavy, alternate ones more raised than the others, all 

 reaching from the base to two-thirds of the length ; intervals 

 very deeply foveate leucosjnlota. 



Costse reaching from the base to slightly past the middle; 

 fovese not deep scinilevis. 



Elytra with seven costse, the alternate ones more raised than 

 the others. 



Elytra with a sutural white band reaching from base to apex ; 

 costse reaching only the median part of the elytra, with a w^hite 

 patch below them on each side, and a narrow white dot above 

 the apical part Gaza. 



Prothorax cordiform, pubescent in the centre ; costas reach- 

 ing from the base to two-thirds of the length ; the supra-apical 

 white patch small, quadrate, covering the second and third 

 intervals perspicillaris. 



Prothorax broader, fovese of intervals deeper, posterior white 

 patch wider graphipteroides. 



Elytra narrower, the alternating costse not much higher than 

 the others ; posterior patch in the shape of a narrow diagonal 

 band bilunata. 



