taxonID	type	description	language	source
5C4F87D22678FFB3C4BD9C66FD9E4386.taxon	description	(Figs 1 – 43)	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22678FFB3C4BD9C66FD9E4386.taxon	diagnosis	Diagnosis within the Australian Elateridae Upper surface shiny, not densely microsculptured; anterior of clypeus arcuate in dorsal view, vertically elevated above base of labrum; mandibles bidentate; pronotum entirely laterally carinate; pronotal postero-lateral lobes with a single median carina; pronotosternal sutures simple, not deeply grooved; pronotal posterior margin not notched inside angles; scutellum anteriorly abruptly elevated; mesocoxal cavities closed by combination of mesoventrite, mesanepisternum, mesepimeron and metaventrite; tarsomeres 1 – 4 simple, 4 not greatly reduced; tarsal claws not pectinate, without a ventral seta.	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D2267AFFB1C4BD9C2EFDBD42A8.taxon	description	(Figs 1 – 22)	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22672FFA2C4BD9F3DFE9B4586.taxon	description	(Figs 22 – 31) Description (female only) Length: 21 mm; greatest width of pronotum at hind angles 1.7 × width of head; greatest width of elytra slightly broader than pronotum; blackish brown with reddish-brown appendages, antennomeres with dark brown median streak. Head. Dorsum medially slightly depressed, with semi-erect setae, anteriorly directed; unevenly punctured, anterior punctures smaller and partly congruent, discal punctures larger but sparser, insterspaces 0.5 – 1.5 × diameters; interspaces shiny, not microsculptured; anterior margin of head in dorsal view convex, slightly projecting laterally beyond eyes, smooth and impuncate but not carinate, abruptly raised above base of labrum; interocular space about 4.5 × eye widths in dorsal view; labrum strongly and densely punctured, with long setae, anterior edge feebly concave; outer surface of mandibles strongly punctured and setose on proximal half, smooth and impunctate on distal half, with elongate depression at midpoint; antennae about 0.3 × body length; scape and antennomeres 3 – 11 elongate, pedicel quadrate; antennomeres 3 – 11 expanded, elongate triangular, with apicolateral angle slightly projecting; relative lengths of antennomeres: female: 11> 3> 1> 4 = 7 = 8 = 9> 5 = 6 = 10> 2. Thorax. Pronotal length and breadth about equal, sides expanded from anterior to middle, then slightly sinuate to posterior angles, width at posterior angles 1.5 × width at anterior angles; disc convex, with deep circular depression either side and shallow midline groove; pronotal punctures similar to disc of head but less dense, interspaces 1.5 – 3 × diameters; interspaces shiny, faintly microreticulate; setae of disc semierect, variably directed but mostly worn off so difficult to determine directions, generally similar to O. howensis; anterior angles of lateral pronotal carina visible from above; posterior angles of pronotum about 40 °; prosternal and hypomeral punctures larger and denser than pronotal disc, with anteriorly directed depressed setae; mesoscutellar disc slightly concave, sparsely finely punctured and setose; elytral striae with distinct elongate punctures, intervals closely stongly punctured, punctures similar to strial or pronotal punctures but shallow; apices of elytra rounded, with minute sutural angulation; metaventrite densely and strongly punctured and setose, punctures slightly smaller than on hypomeron, setae recumbent and posteriorly directed. Abdomen. Ventrites with punctures and setae similar to metaventrite but punctures smaller; posterior margin of sternite 7 shallowly concave. Female genitalia. Tergite 8 almost triangular but with rounded sides and deeply concave basal margin; sternite 8 almost circular, with close erect setae throughout, basal strut about 2.2 × length of sclerite; coxites elongate-rectangular, not subdivided, overlapping along basal 2 / 3 of midline, with projecting narrow elongate-rectangular tips, which slightly diverge, and subapical cylindrical styli; paraprocts long, about 6 × length of coxites, slightly expanded anteriorly towards rounded apices; internal surface of bursa copulatrix with two dense patches of short spines at anterior end, without distinct sclerotised plates, lateral lobe present, twisted with small patch of internal spines, globular spermatheca attached to apex of lobe.	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22672FFA2C4BD9F3DFE9B4586.taxon	diagnosis	Diagnosis. The following attributes distinguish O. huttoni from the other two species of Ochosternus on Lord Howe Island: anterior margin of head not carinate (Fig. 25); antennomeres 3 – 10 serrate in female (Fig. 26); pronotal disc with shallow circular depression each side of midline (Figs 27 – 28); lateral margins of pronotum entirely visible in dorsal view, slightly sinuate in posterior half (Figs 27 – 28); scutellar disc shallowly concave, sparsely punctured (Fig. 27); female sternite 8 without apical tuft of setae (Fig. 30); gonocoxites broad, parallel-sided for most of length then abruptly contracted to apical quarter (Fig. 31).	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22672FFA2C4BD9F3DFE9B4586.taxon	materials_examined	Material examined. Types. Holotype: f / NSW, Mt Gower, Lord Howe Island, bottom of southernmost gully, - 31.35.18, 159.4.21, 18 - Jan- 2002 to 31 - Jan- 2002, I. Hutton, ca. 670 m; MG 16 / 01 (pit trap) / Ochosternus huttoni Rosas, Chan & Reid 2025 Holotype / AM K 187173 / (AMS) [specimen missing both mesothoracic legs & tip of right antenna; apex of ovipositor damaged after habitus photography].	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22672FFA2C4BD9F3DFE9B4586.taxon	etymology	Etymology. Named for Ian Hutton, director of the Lord Howe Island Museum, who collected the unique specimen on behalf of the Australian Museum. Notes. Ochosternus huttoni is only known from a deep gully in the stunted cloud forest on the summit of Mount Gower, which is protected as part of Lord Howe Island National Park. It does not overlap in distribution with O. howensis, which is confined to taller forest at lower elevation, 5 – 500 m asl (Fig. 22). Immature stages are unknown.	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22669FFA1C4BD9832FE1A42B1.taxon	description	(Figures 33 – 43) Description (male only) Length: male 15 – 17 mm (holotype 16 mm); greatest width of pronotum at hind angles 1.5 × width of head; greatest width of elytra similar to pronotum at posterior angles; reddish-brown with darker base of head and pronotal disc, appendages reddish-brown, antennomeres with dark brown median streak. Head. Dorsum with semi-erect setae, anteriorly directed on apical half, laterally directed on posterior half; almost evenly densely strongly punctured, interspaces ≤ 0.5 × diameters, some confluent; interspaces shiny, feebly microsculptured; anterior margin of head in dorsal view convex, slightly projecting laterally beyond eyes, carinate; interocular space 2 × eye widths in dorsal view; labrum strongly and densely punctured, with long setae, anterior edge convex; outer surface of mandibles strongly punctured and setose on more than proximal half, smooth and impunctate on distal 1 / 3, with weak depression at midpoint; male antennae about 0.6 × length of body; scape and antennomeres 3 – 11 elongate, pedicel transverse; antennomeres 3 – 11 expanded, 3 – 10 elongate triangular, with concave apical margin and long apicolateral lobe in male, the lobe 0.5 – 0.7 × antennomere length; relative lengths of antennomeres: male: 11> 7> 8 = 9> 5 = 6 = 10> 4> 3> 1> 2. Thorax. Pronotal greatest length and breadth about equal, sides evenly expanded from anterior to base of posterior lobes, width at posterior angles 1.5 × width at anterior angles; disc elevated at middle, with elongate depression either side; pronotal punctures smaller and sparser than on head, interspaces 1 – 1.5 × diameters; interspaces shiny, feebly microsculptured; setae of disc semierect, mostly posteriorly directed; lateral pronotal carina weakly developed at anterior angles, but visible from above; posterior angles of pronotum about 25 °; prosternum and hypomera strongly and closely punctured, with anteriorly directed depressed setae, except posterior half of hypomera glabrous and impunctate; mesoscutellum flat, shallowly and sparsely punctured, setose; elytral striae with distinct large punctures, intervals densely shallowly punctured; apices of elytra rounded; metaventrite densely and finely punctured and setose, punctures smaller than on hypomeron, and setae recumbent and posteriorly directed. Abdomen. Ventrites with punctures and setae similar to metaventrite but punctures smaller; posterior margin of sternite 7 truncate. Male genitalia. Tergite 8 about as broad as long, sides tapered to broadly rounded apex; sternite 8 medially membranous with three sclerotised areas, broad arcuate well-defined patch at base, and poorly defined apicolateral patches, apical margin shallowly concave; apical margin of tergite 9 shallowly emarginate, slightly bilobed; sternite 9 oval with basal aperture about 1 / 4 length of sternite; basal piece U-shaped but relatively short at midline, less than half overall length, sides angulate; median lobe with basal struts about 1 / 3 remaining length, which is gradually attenuated to curved apex; parameres elongate-triangular with almost straight sides and sharp pre-apical lateral barb.	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22669FFA1C4BD9832FE1A42B1.taxon	diagnosis	Diagnosis. The following attributes distinguish O. goodyeri from other two species of Ochosternus on Lord Howe Island: anterior of frontoclypeus carinate (Fig. 35); male antennae about 0.6 × body length (Fig. 34); antennomeres 3 – 10 pectinate (Fig. 36); anterior margin of labrum convex (Fig. 35); pronotum with elongate depression either side of middle, lateral margins entirely visible from above and evenly divergent from anterior to base of posterior lobes (Fig. 37); mesoscutellum flat, sparsely and shallowly punctured (Fig. 37); aedeagal basal piece short at midline (Fig. 43).	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22669FFA1C4BD9832FE1A42B1.taxon	materials_examined	Material examined. Types. Holotype: m / Mt Lidgbird Ld. Howe Is [in Olliff’s handwriting] / foveicollis Lea Type Lord Howe [part printed, partly Lea’s handwriting] / Ledgbirdia foveicollis Lea Lord Howe I Type [Lea’s handwriting] / K 39373 / Ochosternus goodyeri Rosas, Chan & Reid 2025 Holotype / [right antenna missing, also apex of penis and distal tarsomeres on all legs except left foreleg] (AMS); paratypes (2): m / Lord Howe I. [printed] / MAMU EN. 66405 [printed] / Ochosternus goodyeri Rosas, Chan & Reid 2025 paratype / [aedeagus extruded] (MMS); m / MAMU EN. 66410 [printed] / Ochosternus goodyeri Rosas, Chan & Reid 2025 paratype / (MMS).	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
5C4F87D22669FFA1C4BD9832FE1A42B1.taxon	etymology	Etymology. Named in gratitude for Graham Goodyer, a retired NSW state agricultural entomologist who volunteered for many years at the Australian Museum to sort the Australian Elateridae collection to named genera. Notes. The labels attached to the holotype show that Arthur Lea intended to describe this specimen as a new genus and species, but his name was never published. There is no additional material of this species in the Lea collection, South Australian Museum. All known specimens were collected before 1886 and lack detailed label data. The holotype was labelled ‘ Mt Lidgbird’ by Olliff and was therefore almost certainly collected in 1885 (Olliff, 1889). The collector employed by the Australian Museum in the 1880 s to visit the summit of Lidgbird (795 m asl) is unlikely to have climbed above 400 m asl and probably collected at a much lower elevation (Reid & Chan 2025). It is therefore probable that O. goodyeri is a lowland species that has not been collected since about 1885 and that it is extinct, like at least two other Coleoptera on Lord Howe Island (Anonymous 2002; Jensen et al. 2020).	en	Rosas, Matilda. L., Chan, Cynthia, Reid, Chris. A. M. (2025): A review of Ochosternus Candèze, 1863 from Lord Howe Island, Australia and key to the genera of Elateridae occuring there (Coleoptera: Elateridae: Elaterinae). Zootaxa 5711 (3): 341-364, DOI: 10.11646/zootaxa.5711.3.2, URL: https://doi.org/10.11646/zootaxa.5711.3.2
