84 



than 10, but is about twice as long; 10 is the only really trans- 

 verse joint. 



Femina. A mare differt antennarum articulo penultimo minus 



trans verso ; metasterno multo minus fortiter impresso ; 



femoribus, tibiis, abclomineque simplicibus. 



A marked character in this species is the strong contrast in 

 respect of colour between the last two antennal joints ; the al- 

 most complete absence of setas, and also of fovea3 on the head (two* 

 fovea? seem barely indicated in one or two examples), is also dis- 

 tinctive. The exposed portion of the hind body is strongly 

 declivous. 



The sexual characters in the antennae are exceptionally slight, 

 those in the legs, metasternum, and second (the hrst being scarcely 

 visible) ventral segment are far stronger than in any other 

 Uujnnes known to me. 



S. Australia ; near Port Lincoln, under the bark of a tree sur- 

 rounded by flood waters. 



£J. nautoides, sp. nov. Mas. Ab E. nauta vix differt nisi tibiis 



anticis intus haud dentatis, metasterno postice minus exca- 



vato, abdominis segmento 2° simplici, elytrorum sutura 



postice carinata, retrorsum spiniformi producta. Long., 1 1. 



This insect, of which I possess two examples, is a very puzzling 



one and I know not whether to regard it as an abnormal form of 



E. nauta, or as a distinct species ; but its differences (such as 



they are) are so strongly marked that there seems to be certainly 



o-ood reason for its having a distinctive name. I cannot even 



feel sure w^iether it is a male or a female, its ventral character 



beino- suo-f^estive of the latter sex, while its dentate femora point 



very strongly to the former. On the w^iole I incline to think it 



the male of a good species of which I have not seen the female ; 



the strong spine into which its elytra are produced at the sutural 



apex will at once distinguish it from all its described congeners. 



In the examples before me the legs are of much darker colour 



than in any E. nauta that I have seen, but this is quite likely to 



be accidental. 



S. Australia ; near Port Lincoln. 

 E. spiniventris, sp. nov. Mas. Ab E. nauta differt antennis 

 sublon^ioribus ; femoribus simplicibus ; tibiis anticis pos- 

 ticisque (haud dentatis) paullo ante apicem intus emar- 

 o-inatis ; metasterno multo magis late magis profunde exca- 

 vato ; abdominis segmento ventrali T sat nitido haud 

 lonf^itudinaliter impresso, postice tuberculum subconicum 

 antrorsum directum, apice acuium formanti. 

 Femina latet. 



