292 



A. Antennae consisting of eight joints ; 



only ... ... ... ... ... Group I. 



AA. Antennae consisting of nine joints. 

 B. Lateral gutter of pronotum (especi- 

 ally round the hind angles) wide 

 an<i filled with closely-packed seti- 

 ferous rugulosity ... ... ... Group II. 



BB. Lateral gutter of pronotum not as 

 B. 

 C Surface of apical joint of maxil- 

 lary palpi, with a large impres- 

 sion bordered laterally by a raised 

 edge ... ... ... ... ... Group III. 



CC. Apical joint of maxillary palpi 



not as C. 

 * D. Penultimate joint of maxillary 

 palpi longer than antepenulti- 

 mate ... ... ... ... Group IV. 



DD. Penultimate joint of maxillary 

 palpi not (or scarcely) longer 

 than antepenultimate. 

 E. Ant«nnal club, with more than 



3 joints in both sexes... ... Group V. 



EE. Antennal club, with only 3 

 joints in both sexes. 

 F. Species not having the pro- 

 notum and pygidium black. 

 G. Perpendicular front face 

 of clypeus, wiili plenti- 

 ful, more or less rugulose 

 punctures, more or less 

 obscuring the transverse 

 setiferous series ... ... Group VI. 



GG. Perpendicular front face 

 of Clypeus nitid, smooth, 

 and all but unpunctured, 

 except the transverse 

 series of very large seti- 

 ferous punctures ... Group VII, 

 FF. Pronotum and pygidium 



black Group VIII. 



The species which I associate together in each of the above 

 groups are fairly homogeneous in facies, though considerably 

 less so in respect of structural characters. More detailed re- 

 marks about the groups will be found below. 



In subdividing Haj)lonycha into groups, the number of 

 joints in the antennae, though not, in my opinion, a character 

 of much importance, enables two or three species with only 

 eight antennal joints to be satisfactorily separated from the 



* In the concluding species of this group the group-charac- 

 ter is only feebly marked, but in these the dorsal surface of 

 the body is pruinose and iridescent, which is not the case with 

 any species known to me (of the following groups), having 

 maxillary palpi of somewhat similar structure. 



