My example of this insect is certainly a male, and though very 

 close to E. nauta its sexual characters are quite inconsistent with 

 the idea of specific identity. The emargination on the inner side 

 of the front tibia? is quite noticeable, but occupies only a small 

 part of the tibia ; that of the hind tibia is much larger, nearly 

 the apical third part of the inner margin being very slightly con- 

 cave. The hind tibia is at its widest just above the emargina- 

 tion, so that the dilatation at that point is capable of being 

 regarded as a feeble tooth. The metasternum is largely, deeply, 

 and almost circularly excavated ; the corresponding excavation in 

 E. nauta appearing as a wide longitudinal impression. The 

 tubercle on the second ventral segment is of peculiar shape, and 

 difficult to characterise intelligibly ; the hind margin of the seg- 

 ment seems to be gradually elevated from either side towards the 

 middle (where it is quite spiniform), and also bent forward ; so 

 that if the insect be viewed from the side, an inclined plane end- 

 ing in a sharp point seems to run upward and forward from the 

 apex of the second segment towards the metasternum. 



South Australia ; near Port Lincoln. 



E. militaris, sp. nov. Mas. Fere laivis, sparsim obscure punc- 

 tulata ; glabra ; picea elytris pedibusque manifeste, antennis 

 vix manifeste, rufescentibus ; capite haud (vel vix manifeste) 

 bifoveolato ; prothorace irquali sat trans verso leviter cordato ; 

 elytris prothorace dimidio longioribus, I'umeris callosis, striis 

 suturalibus sat fortiter impressis ; antennis capiti protho- 

 racique conjunctis longitudine fequalibus, fortiter clavatis ; 

 femoribus basin versus pedunculatis, intermediis subtus dente 

 parvo armatis ; tibiis intermediis ante apicem extus leviter 

 emarginatis ; metasterno late profunde excavato ; abdominis 

 segmento ventrali 2° in medio impresso et utrinque obscure 

 tuberculato. Long., -j% 1. 



Of the antennae, joints 1 and 2 are much stouter than any of 

 the following six joints (which are of uniform thickness), 1 being 

 much longer than 2 ; 4, 6, and 8 are equal inter se, and are the 

 shortest joints; Sis equal to 2 in length, 5 a little shorter, 7 

 nearly as short as 4, 6, and 8 ; 9 is strongly transverse, being 

 scarcely longer than 8, but much wider ; 10 is still more trans- 

 verse, being a little longer than, and about twice as wide as, 9 ; 

 11 is ovate, being twice as long as 10, but scarcely wider ; 9 and 

 10 each have a curved pencil of seta on either side at the apex, 



Femina. A mare differt femoribus, metasterno, abdomine(|ue 

 simplicibus. 



The antenme of the female scarcely differ from tliose of tlie 

 male except in being a trifle shorter. 

 South Australia ; near Port Lincoln. 



