158 Notes on Australian Coleoptera. 
marked, only a vestige of the longitudinal sulcate and the 
two posterior impressions well marked and elongated ; elytra 
having a strong sutural stria, a second abbreviated behind, a 
third still shorter, and only extending to the middle of the 
elytra, the remaining part smooth ; margin with a few im- 
pressions ; tarsi, palpi, and antenne after the third article. 
Lachlan River. 
LEIRADIRA. 
Mentum broad, very strongly emarginated, but having no 
tooth ; the wings are broad, and terminated in an acute point. 
Labrum transverse, angularly emarginated ; antennz bent 
after the first article, which is longer than the three following 
together, they grow thicker as they progress towards the 
extremity ; mandibule strong, arched towards the extremity, _ 
and very pointed at the apex, having no tooth on 
the inner side, and being slightly carinated at the basis ; 
palpi: the maxillary with the first article short, second 
conical and long, third of the same form but shorter, last large, 
compressed, suboval, truncated ; the labial with the first 
article rather short, the second long and conical, the third 
large, truncated, and rather scutiform ; tarsi slender, having 
the first article long ; they are covered with spiny hair, the 
anterior dilated in the male, the three first articles being 
equal, triangular, and furnished below with a double row of 
squamule, the fourth small; claws simple; in the female 
the anterior tarsi are not dilated, and the tirst article is much 
longer than the following; head rather large, oblong, the 
posterior part forming a neck ; thorax oval, rounded laterally, 
elytra oval, with the humeral angles well marked, legs 
strong; the anterior tibe strongly emarginated, and having a 
spine at the upper end of the emargination, and another at 
the apex. 
This genus seems to form a passage between the Cnemac- 
anthide and the Stomide; the mandibule are not as 
elongated as they usually are in this latter group. 
Lewadira Latreillei: length 5’; of a brilliant black, 
having fine metallic tinges on the sides of the thorax and 
elytra ; the thorax is oblong, with the front transverse im- 
pression almost imperceptible; the longitudinal sulcate 
light, the two posterior impressions elongated and rather deep; 
elytra deeply striated, having two punctiform impressions on 
the interval between the second and third, the first a 
little before the middle, and the other towards the two- 
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