Male. 
Length of body se a ... 14-16 mm. 
Length of pronotum... a Si Oe 
Length of hind femora Lae seanig eo : 
Habitat.—Western extremity of Kangaroo Island, near Cape 
Borda, where two males were captured by myself at the end of 
February, 1886, and were found under the loosely adhering bark 
of the trunk of Eucalypts in moist situations. A third 
specimen resembling the above two in most characters, but ex- 
hibits minute scale-like wing-lobes, is for the present included. 
Its face is marked with a broad blackish-brown band, and the 
hind femora are wholly unarmed. Collection of S. A. Museum. 
Ametrus, Lrunner (Mon., 384, fig. 50). 
“Head with occuput elevated. Fastigium of vertex three 
times wider than first antennal joint. Antenne short, slender. 
Face broad, rounded, Pronotum short, anterior angles obtuse, 
hindmargin obtusely and triangularly emarginate, transverse 
furrows deeply impressed. Elytra and wings rudimentary, lobe- 
like and lateral. Fore coxe much compressed, spined. Hind 
femora below with internal margin wholly and external partly 
spined. Fore and middle tibiz below with two spines on each 
side. Hind tibiz long, very thick, terete, above with six spines 
on each side, those on the inner side being the longer ones. 
Tarsi very short. Abdomen of male with ninth dorsal segment 
hood-like, short, inferior margin triangularly emarginate. Cerci 
very short. Subgenital lamina quadrate, medial lobe obtuse, 
produced, lateral lobes accuminate, styles none. 
AMETRUS TIBIALIS, 5r. (ibid). 
*‘Size moderate. Uniformly ferruginous. 
Male. 
Length of body... Be oe Seip Ose pe PRET 
Length of pronotum ae Se NN Ya 
Length of elytra ie NA Siar GO nee 
Length of hind femora... ah Se bale eo el 
Length of hind tibie GH 
Habitat.— Melbourne, Victoria.” 
AMETROSOMUS, gen. nov. 
Head with occiput elevated, maxillary palpi very long, filiform. 
Antenne about three times the length of the body. Fastigium 
of vertex scarcely twice as wide as first antennal joint, apex 
depressed, margins keeled. Eyes large, reniform. Pronotum 
short, anterior margin raised, disk with a distinct suborbicular 
callosity on each side, angles much rounded, hindmargin almost 
M 
