3U1 



CC. Penultimate joint of maxillary 

 palpi but littk (or scarcely) 

 longer than antepenultimate. 

 [Iridescent species.] 

 T>. Hind angles of prothorax en- 

 tirely rounded off 

 DD. Hind angles of prothorax well 

 defined. 

 E. Species not having joints 3 

 and 4 of antennae, both of 

 them very short and subtrans- 

 verse. 

 F. Joint 4 of antennae longer 

 than joint 3. 

 G. Size very large (about 



long. 14 1.) ... 

 GG. Size much smaller (long. 

 9 1. or less). [Antennal 

 club of male 4-3ointed.] 

 FF. Joint 4 of antennae slight- 

 ly shorter than joint 3. 

 [Antennal club of m^le 

 with only 3 joints.] 

 EE. Joints 3 and 4 of antennae 

 very short, subtransverse ... 



Gouldi, Hope 



nobilis Blackb. 



bella, Blackh. 



amoena, Blackh. 

 pulchella, Blackb. 



Group V. 



[Antennae of nine joints. Lateral gutter of pronotum normal. 

 Apical joint of maxillary palpi not foveate. Penultimate 

 joint of maxillary palpi shorter than antepenultimate, or 

 sub-equal to it. In the latter case the dorsal surface not 

 iridescent. Antennal club composed of more than three 

 joints in both sexes.*] 



A. Large iridescent species. [Joint 3 of 

 maxillary palpi much shorter than 

 joint 2.] 

 B. Pygidium but little nitid, closely 

 sculptured, especially near base ... 

 BB. Pygidium brilliantly nitid, its 

 puncturation extremely sparse 

 AA. Non-iridescent species; almost in- 

 variably of much smaller size. 

 B. Puncturation of head sparse... 

 BB. Puncturation of head very close, 

 more or less confluent. 

 C. Sides and base of pronotum (with- 

 in the margin) and also base of 

 elytra fringed with very long, 

 erect hairs ... ... ... ... Mauricei, Blackh. 



gigantea, Burm. (?) 

 lucifera, Blackh. 



gracilis, Blackh. 



* I am quite confident that this is the case in the species (of 

 this aggregate), of which only one sex is known to me. See the 

 remarks on this subject under the description of H. lucifera, 

 Blackb. 



