218 Proceedings of the Royal Society of Victoria. 



circiter duplo angustiores), postice aperti, in capite haud angus- 

 tati ; triangulus propleuralis fere sequilaterus (latere externo 

 quam cetera vix longiori), metasternum antice utrinque prope 

 coxas intermedias sulco brevi longitudinal! minus perspicuo 

 impressum ; lamina coxarum posticarum in parte basali lata (hie 

 angulata et extrorsum gradatim* angustata); episterna meta 

 thoracica angusta subparallela sed retrorsum a basi gradatim 

 leviter dilatata ; segmenta ventralia normalia nee ad tarsos 

 recipiendos suleata ; pedes modici ; femora sat eompressa tarsi 

 filiformes, articulo 4°- subtus vix producto ; tarsorum posticorum 

 articulo basali quam ceteri eonjuncti multo breviori ; unguiculi 

 exigui, ad basin compressi. 



The extremely small Eucnemid for which I propose this new 

 generic name cannot find a place in any genus that I can ascer- 

 tain to have been previously characterised. In M. de Bonvouloir's 

 tabulation of the Eucnemid genera, and also by the scheme of 

 classification developed in the body of his memoir (Ann. Soc. 

 Ent. Fr. 1870-75) the present genus would stand near the South 

 American genus Lamprotrichus which is very imperfectly charac- 

 terized (owing, in part at least, to the type being mutilated). It 

 differs however inter alia in the apical ventral segment not being 

 prolonged at the apex and in the presence of a frontal carina 

 (characters M. de Bonvouloir regards as generic), and apparently 

 has no superficial resemblance at all to the unique species of 

 Lamprotrichus which is a very large Eucnemid of elongate form 

 marked on its prothorax and elytra with a pattern resulting 

 from dense pubesence varied with glabrous impunctulate patches. 

 It diii'ei's from nearly all other Eucnemid genera by the presence 

 of basal metasternal sulci. This sulcus is found on one 

 other Australian genus (Arisus), which, however, inter alia 

 has the ith joint of its tarsi excavate-emarginate above and 

 somewhat prolonged beneath. The form of the line (on the 

 head) which M. de Bonvouloir calls the "interocular carina" (and 

 which is angularly zigzagged hindward in the middle in this 

 insect) and of the basal lobe of the prothorax (which appears to 

 be almost a distinct piece cut off by a deep suture from the rest 

 of the prothorax) are very notable characters. The 4th joint of 

 the tarsi is almost imperceptibly produced beneath but I cannot 

 find it to be at all excavate above. 



