72 



more of the legs are dark and the prothorax is immaculate. 

 On two of the specimens the abdominal notch is double, but 

 this appears to be due to post-mortem contraction. 



Heteromastix. 

 The species of this genus usually have the elytra black, 

 prothorax flavous, and head, legs, and antennae varying from 

 partly to entirely black or flavous; the females as a rule are 

 difficult to distinguish, inter se, and those of many species 

 have not been described; but the males usually have dis- 

 tinctive antennae, the eleventh joint being often of remark- 

 able shape, the tenth also is frequently peculiar. It is pro- 

 bable that the genus Asty china ( 1Q ) will be found to be closely 

 allied to, if not actually forming a section of it, the two 

 apical joints of the antennae of A. flavicollis, A. moerens, 

 and A. funebris differ quite as much from each other as do 

 some species of Heteromastix with those joints distorted. So 

 many species have been added since my table of the genus 

 was published ( n) that the following grouping should be of 

 use: — 



Antennae with third to fifth joints distorted in male. 

 distortus, Lea inflatus, Lea 



Antennae with ninth joint coJispicuously dilated in male. 

 fusicornis, Blackb. mcdonaldi, Lea 



insignicornis, Lea nonarius, Lea 



macleayi, Lea 



Antennae with eleventh joint (arid usually the tenth) 

 distorted in male. 



bi color, Bohem. ' luridi colli s, Macl. 



bispinicornis, Lea major, Lea 



bryanti, Lea mediofuscus, Lea 



castor, Lea melanocephaltjs, Lea 



crassicornis, Lea minor, Lea 



decipiens, Lea mirabilis, Lea 



diorycerus, Lea mirus, Lea 



flavifrons, Lea OBscuRiPES, Lea 



flavoterminalis. Lea obscurus, Lea 



frater, Lea pall i pes, Lea 



gagaticeps, Lea pollux, Lea 



galeatus, Blackb. scutellaris, Lea 



imitator, Lea spinicornis, Lea 



laticollis, Lea tasmaniensis, Lea 

 longicornis, Lea 



(10) Westwood, Trans: Ent.'Soc. Loud., 1876, p. 494. 

 (ii) Lea, I.e., 1909, pp. 130-132. 



