36 



none transverse, eleventh longer. Prothorax subquadrate, apex slightly wider 

 than base, sides feebly incurved at middle, hind angles strongly rounded ; an 

 irregular subgeniinate row of punctures on each side of middle, and fairly 

 numerous ones on sides. Elytra parallel-sided, distinctly longer and wider than 

 prothorax, but scarcely one-fifth longer than wide ; with somewhat irregular 

 rows of rather small punctures, becoming smaller and less regular posteriorly. 

 Abdomen with dense and small punctures. Front femora stout and slightly 

 dentate, four basal joints of front tarsi strongly dilated to form a subovate pad, 

 basal joint of hind tarsi slightly longer than second. Length, 8 mm. 



Hab. — North-western Australia: Behn River (R. Helms). Unique. 



In general appearance like small and narrow L. fcrreum, but elytral punc- 

 tures very different ; very different in colour from L. fulvipenne, and base of 

 head, especially at the angles, opaque and with crowded punctures. It is the 

 size and much the colour of Dolicaon paricolor, but the head is darker and 

 hind tarsi different. It is apparently allied to L. pennafum, as the whole base 

 of the: head, in advance of the neck, at first glance appears to be truncated, on 

 close examination, however, the hind angles are seen to be slightly rounded off, 

 but, even the slight rounding is partially obscured by clothing. The description 

 of pennatum is but little more than a comparison with the ex-Australian L. 

 fulvipenne ; there are several English specimens of that species before me, and 

 they are black, with the antennae, palpi, legs, and elytra reddish, the latter on 

 one specimen slightly infuscated at the base ; in his second table of the species 

 of Lathrobium,^-^^ Fauvel notes pcunatiim as having the head, prothorax, and 

 abdomen black, the elytra reddish, with the base blackish. The punctures on 

 the prothorax are slightly larger than those on the head, in some parts they 

 appear to form irregular rows in addition to those on each side of the middle, 

 but about the apex, except in the middle, they are all irregular. 



Lathrobium abdominale, n. sp. Fig. 19. 



d • Black or blackish ; mandibles, antennae, and legs of a dingy reddish- 

 brown,' tarsi and palpi paler. Rather densely clothed with short ashen 

 pubescence, and with a few dark hairs scattered about. 



Head behind antennae subquadrate, but angles rounded off; with crowded 

 and small but sharply-defined punctures ; under-surf ace shagreened. Mandibles 

 stout. Antennae moderately long, first joint slightly longer than second and 

 third combined, third slightly longer than second, and rather more noticeably 

 longer than fourth, the others to tenth subglobular. Prothorax slightly longer 

 than wide, slightly narrower than head, base almost as wnde as apex, sides 

 gently incurved to middle ; punctures as on head, but leaving a narrow, shining, 

 median, line. Elytra parallel-sided, slightly wider than head and considerably 

 longer than prothorax ; punctures slightly smaller and not quite as dense as on 

 prothorax. Under-surface of abdomen with a large excavation common to 

 three segments : a small portion at apex of apparent fourth, occupying the 

 apparent fifth for almost its entire width, and most of the apparent sixth 

 subapical segment deeply notched. Front femora stout, obtusely dentate ; front 

 tibiae stout ; four basal joints of front tarsi dilated to form a subcircular pad 

 middle and hind femora somewhat curved. Length, 5.5-6.5 mm. 



9 . Differs in being less robust, antennae and legs shorter, femora thinner 

 the middle and hind ones scarcely curved, and under-surface of abdomen simple 



Hab. — South Australia: Lucindale (B. A. Feuerheerdt). Type, I. 12648. 



Close to L. cribrnm, but differs in being more shining, elytra differently 

 coloured and with somewhat different punctures ; the abdomen of the male is 

 very similar, the excavation varies somewhat in extent and depth, but is always 



(•21) Fauvel, Ann. Mus. Civ. Gen., 1878, p. 521. 



