313 



The description of A. fusco-violaceus, Fairm., does not enable me 

 to place that species in my tabulation, but it appears to differ 

 from all the above in its cyaneous or violaceous colour. 



N.B. — It appears to me (as already intimated) difficult to 

 characterise Anaxo by very satisfactory structural characters 

 among the Australian Cistelidw. having the mandibles simply 

 pointed at the apex, the head well-prolonged in front, the apical 

 joint of the maxillary palpi elongate-cultriform, and the legs and 

 -antenniie more or less stout and short. Its species (so far as 

 known to me) are distinguished by their more or less parallel 

 form and obscure coloring, none of them being brilliantly 

 metallic (as are ^Ethyssius and Alcmceonis) or brightly colored 

 or with markings on elytra or prothorax (as are Licymnius^ 

 Chromomcpa and ApellatiosJ. The eyes are not approximated to 

 -each other in either sex. There are also slight structural charac- 

 ters attributed to each of the genera just named which are not 

 found in any of the species I have called Anaxo. Synatractus 

 seems to be remarkable by the very elongate apical joint of its 

 antenntie, and Lisa and Ismarus are both described as having 

 very slender antenna?. 



The sexual differences in Anaxo appear to be but slight, except 

 in A. ater (whose sexual characters render its place in Anaxo 

 doubtful) ; the males seem to be distinguished merely by smaller 

 size and narrower form, by the intercoxal process of the basal 

 ventral segment being somewhat elevated above the general plane 

 of the segment, by a tendency to diminution of size on the apical 

 joint of the antennae, and (at least in some species) very slight 

 differences in the apex of the last dorsal segment. 



APELLATUS. 



The species of this genus resemble each other very closely in 

 general appearance, but have extremely strongly marked and dis- 

 tinctive sexual characters in the antenna? of the males (so far as 

 I have seen). The following names have been applied to species 

 appertaining to it : — aimenus, Pasc. (N. S. W.), ioYmeAy lateralis^ 

 Pasc, (nom. prteocc.) ; lateralis, Bohem. (N.S.W.) (Euomma) ; 

 jjalpalis, Macl. (Qu.); Mastersi, Macl. (Qu.); apicalis, Black. 

 (W. Austr.). 



I have before me three species, of two of them both sexes. 

 The males differ from the females in the smaller size, in their 

 very much longer palpi (the second joint very long and slender, 

 the apical curved and very elongate-cultriform), in the closer 

 approximation of their eyes, in the remarkable dilatation of some 

 ■of the intermediate joints of their antenntie, in their more strongly 

 arched tibia?, and in the intercoxal process of the basal ventral 

 segment being a little elevated anteriorly and not quite continu- 

 ing the plane of the general surface of the segment. 



