254 



abbreviated elytra conspicuously separated at their base, cer- 

 tainly indicate that if not a true Rhipidius it is at least 

 extremely close to that genus. From pectinicornis it differs in 

 being paler and opaque, head larger, with longer antenna! 

 rami (although their supporting joints are shorter), and legs 

 wider and natter, with the articulations of the tarsi much 

 less conspicuous. The antennal rami are almost the length 

 of the elytra, and, owing to the shortness of their supporting 

 joints, have the appearance as of all starting from the concave 

 apex of the third joint. Owing to the distance between the 

 elytra part of the metanotum is exposed, and is seen to be 

 rather densely punctate and shining ; all the rest of the upper- 

 surface is opaque. Owing to the flatness of the legs and to 

 their clothing they have a curiously soft appearance. 



Rhipidius pectinicornis, Thumb. 



Some years ago I took a pair of this species under bark 

 of a Casuarina tree at Hobart ; they were in company with 

 a cockroach, and, being unaware at the time that the female 

 of the species was apterous, I thought the female was a larval 

 form, and placed it in a small tube of spirits, which evapor- 

 ated, and the specimen shrivelled up beyond recognition. The 

 male was compared and agreed with a European specimen 

 in the Macleay Museum labelled as pectinicornis. 



Emenadia. 



This genus may be easily identified by the acutely-pointed 

 elytra of all its species, their claws strongly bifid at apex, and 

 their antennae biflabellate in the male. But although the 

 genus is distinct many of the species are extraordinarily vari- 

 able in size and markings ; at first glance some of the speci- 

 mens that have been placed together look so utterly different, 

 that their specific association appears absurd, but with long 

 series the connecting forms are quite evident. Blackburn 

 regarded the colour of the head as a reliable feature, but I 

 have previously pointed out that this is not the case, and 

 long series of several species confirm my opinion. The struc- 

 tural features that more readily lead to the identification of 

 the species are the medio-basal lobe of the pronotum, the 

 second joint of the hind tarsi, and the punctures of the head. 



Emenadia novaehollandiae, Gerst. 



The medio-lateral spot on each elytron of this species is 

 always conspicuous and usually rounded ; the apical mark may 

 cover the whole apex, except for the narrowly elevated and 

 reddish margins and suture, but occasionally the reddish 



