82 LORD HOWE ISLAND. 



Saprikus gayndahensis, Mad. 



Saprinusgnyndaliensis, Macleay, Trans. Eut. Soc. N.S.W., II, p. 158 (1871). 

 Two or three specimens o£ a Sap^nnus, which were found in stercore^ agree 

 very well with this species. 



TROGOSITID^. 



OsTOMA prDicuM, sp. nov. 

 Plate YI, f . 7. 



Ovate, depressed, black, somewhat shining ; pro thorax very coarsely 

 punctured on the disc, densely clothed at the sides with light brown 

 appressed scales ; elytra at the base broader than the prothorax, thickly 

 covered with scales, each with seven costse composed of bead-like elevations. 



Head transverse, strongly and closely punctured in front, rather less 

 strongly punctured behind. Antennae eleven-jointed, ferrugiDOus, the club 

 distinctly three- jointed. Prothorax deeply emarginate in front, the sides 

 rounded anteriorly, abruptly narrowed and indistinctly serrate behind the 

 middle. Scutellum transverse, round ed behind, irregularly j^unctured. Elytra 

 about twice as long as the head and prothorax together, slightly narrowed 

 behind, Avith broad margins, the costpe moderately raised, shining, interrupted 

 at short intervals by slightly impressed punctures, the interstices flat, the 

 third, fourth, and fifth, considerably broader than the otliers ; underside 

 dark ferruginous, shining ; sterna coarsely punctured ; abdomen finely and 

 -closely punctured. Legs dark ferruginous. Length 8 — 11 m.m. 



Summit of Mount Ledgbird (2,500 feet) ; also found on the low-lying land. 



The species described above agrees with Ostoma in form and all essential 

 points of structure ; the presternum, however, is much broader behind the 

 coxge, the margins of the elytra are more dilated, and the form of the 

 elytral costse is very different. In spite of these differences, I think the 

 species must be retained in the genus, unless a new one is established for its 

 reception. A variety occurs in which the disc of the prothorax is tinged 

 with bronze. 



COLTDIID.^. 



Neotbichtjs lucipugi's, sp. nov. 



Elongate, parallel-sided, dark fuscous, thickly covered with erect fulvous 

 setse ; prothorax distinctly longer than broad, granulose, sides j)arallel ; 

 elytra strongly seriate-punctate. 



Head broadly transverse, strongly rugulose ; eyes very prominent. Antennas 

 dark reddish testaceous, with the penultimate joint very broad. Prothorax 

 broader than the head, rather thickly covered with coarse granules and short 

 erect seta^ ; anterior angles prominent ; the sides explanate and clothed with 

 a row of outstanding setse. Elytra sligktly narrower in front tlian behind, 

 with series of coarse punctures ; the interstices narrow and bearing erect 

 setse ; near the humeral angles, which are somewhat prominent, the elytra 

 have a tuberculate appearance. Underside dull, rather strongly and sparingly 

 punctured. Legs fuscous ; the tibiae with conspicuous setae on the outer 

 margins. Length 4 — 5^ mm. 



There can, I think, be no doubt as to the identity of this species with 

 JSfeotrichus, recently characterized by Dr. Sharp. It is nearly allied to his 

 N. serratus (Journ. Linn. Soc, XIX, p. 117, pi. 6, fig. 1, 1885), which it 

 resembles in having tlie surface granulose, and the sides of the prothorax 

 parallel ; but it may be distinguished by its less coarse setse. The genus 

 would appear to have a wide distribution, as it is now known from Japan, 

 Ceylon, and Lord Howe Island. 



