(Pa^e 111) 



52. Posterior margin of the sixth free dorsal abdominal joint in the ^ Xno- 



four-toothed (Fig. 56a; 56, 57. 56), rarely deeply cleft (Fij. 55). 

 Third joint of the antennae not longer than tiie second (cf. IE. subg. 



Alaobia Thorns. ) : 14. subg. Tetropla f/.uls 61 . 



Abdominal sixth free dorsal joint in the o most often transversally 



truncated and the margin finely serrated or notched with one larger 

 spine or tooth in each corner (Fig. 48, 50, 53 et al.), rarely with- 

 out serrations, either slightly incurved ( incognita ) or angularly 

 incised (Fig. 54 sodalis ) . Third joint of the antennae longer than 

 or as long as the second, exceptinally ( xanthopus ) a little shorter.. 53. 



53. Abdominal first three free dorsal joints with very scattered punctation. 



Antennae as a rule rather long, however robust. (Species rather large. 



L. 3.5-4.5 mm.): 11. subg. Homalota s. str. Muls £4. 



Abdominal first three free dorsal Joints rather densely punctated (species 

 smaller. L. 2.5-3.5 mm.) 60. 



54. Posterior margin of sixth free dorsal joint of abdomen in the o less ser- 



rated or notched. Antennal next-last joints (8-10) scarcely broader 



than long. L. 3.5-4.5 mm 37, H. incognita Sharp, 



Posterior margin of sixth free dorsal joint of abdomen in the q finely 



serrate or notched. Antennal next-last joints broader tht-n long...E5. 



55. Head and pronotum, also often elytra with distinct bronze reflection. . ,56. 

 Head and pronotum black without bronze reflection £7. 



56. Pronotum almost as broad as elytra; these very little longer than prono- 



tum. L. 3,5-4.5 mm 38, H. aquatllis Thoms. 



.180- 



