268 



D. Lateral edging of pronotum in front 



of middle strongly raised. 



E. Interval between the two external 



tubercles of pronotum not or 



scarcely wider than head. 



F. Hind part of pronotum very nitid 



and mostly smooth ... 

 FF. Pronotum (except retuse front) 

 entirely rugulose and but little 

 nitid ... 

 EE. Interval between the two external 

 tubercles of pronotum much wider 

 than head... 

 DD. Lateral edging of pronotum much 

 finer and much less elevated. 

 CC. Basal gutter of pronotum not dilated 

 hindward in middle. 

 D. Clypeal carina angularly elevated in 

 middle. 

 E. Clypeal carina strongly angulate on 



eitner side before reaching margin 

 EE. Clypeal carina not angulate later- 

 ally 

 DD. Clypeal carina not angularly elevated 

 in middle ... 

 BB. Retuse front of pronotum not as in " B." 

 C. Frort of clypeus emarginate 

 CC. Front of clypeus widely and very feebly 

 (or not) sinuous 

 Retuse front of pronotum very oblique, 

 and descending from at (or behind) the 

 middle. 

 Less nitid. Declivous front of pronotum 

 scarcely carinate longitudinally 

 BB. More nitid. Declivous front of pronotum 

 strongly carinate down middle 



Group III. 



A. Dorsal surface devoid of metallic colouring 



(retuse front of pronotum topped by two 

 subcontiguous protuberances). 

 B. Pronotum not (or scarcely) punctulate ... 

 BB. Pronotum closely and quite strongly 

 punctulate 

 AA. Dorsal surface green, more or less metallic 

 (retuse front of pronotum topped by four 

 protuberances). 



B. Dorsal surface opaque 

 BB. Dorsal surface nitid 



Group IV. 

 Eyes not (or scarcely) perceptibly facetted 

 on surface. 

 B. Retuse front of pronotum topped by strong 



protuberances 

 BB. Retuse front of pronotum not topped by 

 protuberances. 

 C. Front of pronotum with a fine median 

 longitudinal carina 



AA. 



B. 



A 



laminatus, Mad. 



Cowleyi, BlacJcb. 



atrox, Har. 

 Palmerstoni, Bla^kb. 



Sloanei, Bla'-hh. 

 pugnax, Har. 

 pugnacior, Blachh. 

 capitosus, Har. 

 nodulifer, Har. 



declivis, Har. 

 desectus, Mad. 



macrocephalus, Kirby. 

 capella, Kirby. 



BoviUi, Bladch. 

 conspicuus, Mad. 



Erichsoni, Hope. 



Howitti, Blackb. 



