117 



Notes on Table. 



The femoral teeth, when present, are sometimes so 

 extremely feeble, and could so easily be overlooked, that it 

 was not considered desirable to use them in the table. The 

 sexual variation in the eyes also rendered it desirable not to 

 use these where possible. The depths of the prosternal striae, 

 and the diminishing in size posteriorly of the elytral punctures, 

 are very useful features in distinguishing the species, but the 

 gradations in size between them are so fine that they could not 

 be usefully employed for the larger divisions of the table. 

 The claws might have been used, as they are often strikingly 

 different between species apparently almost identical (compare 

 decipiens and atra); but as at the best of times it is often 

 difficult without considerable manipulation to decide even as 

 to whether they are bifid or feebly appendiculate, and as a 

 slight amount of dust or gum readily obscures them, especially 

 on the smaller specimens, it was decided not to use them in the 

 table. 



A. On many species, not here included, the prosternum 

 is conspicuously striated at the base, or at the base and apex, 

 but the striae are not traceable throughout. On the present 

 group at least some striae are so traceable, although in a few 

 cases rather indistinctly so. 



A. e. On elliptica and on prosterTwlis, and on even the 

 darkest forms of apicalis, the elytra are more or less conspicu- 

 ously diluted with red posteriorly, so they are not included 

 here. 



A. g. This species seems rather out of place amongst 

 those with striated prosternum, and the striae there are less 

 distinct than on most species of A, although some of them are 

 traceable throughout. 



A. j. Counting from the middle and excluding the short 

 basal one. The short vitta on the fourth interstice is some- 

 times connected with the main longitudinal one, but on such 

 specimens the interstice itself is partly pale towards the base. 



A. kk. On some species of the genus the base of the 

 head has fairly distinct, or even moderately strong, punctures, 

 but these are usually concealed by the overlapping base of 

 prothorax. The space here referred to may be taken as from 

 the clypeal suture to a line connecting the hind margin of the 

 eyes; on some species of kk the punctures are rather small, 

 but they are always sharply defined. 



A. p. On flavipennis each angle, when viewed from 

 below, appears to be armed with a minute tooth, but these 

 are quite invisible from above. 



A. vv. In the male the separation is considerably less 

 than the transverse diameter of an eye. 



