Previously unpublished Odonata records from Sarawak, Borneo : part 1, Kuching Division excluding Kubah National Park, and Samarahan Division

Records of Odonata from Kuching and Samarahan, the western administrative divisions of Sarawak in Malaysian Borneo, are presented. Forty-two species are listed from Bako National Park, and eighty-nine species are listed from various other locations. Notable records, not yet publishedin detail elsewhere, include Aciagrion ?fasiculare, Bornargiolestes species, Pericnemis species cf triangularis, Coeliccia new species and Tetrathemis flavescens

Previously unpublished Odonata records from Sarawak, Borneo : part 2, Kubah National Park

Records of Odonata from Kubah National Park, near Kuching in west Sarawak, are presented. Eighty-five species are known from the national park. Notable records include Drepanosticta drusilla, Rhinocypha species cf spinifer, Bornagriolestes species, Anaciaeschna species and Macromidia genialis erratica

Previously unpublished Odonata records from Sarawak, Borneo, part VI: Miri Division including checklists for Niah, Lambir Hills, Loagan Bunut and Pulong Tau National Parks

Recods of Odonata made from 2005 to 2020 in Miri Division in Sarawak are presented, including records from Lambir Hills, Loagan Bunut, Niah and Pulong Tau National Parks. Primary types of Odonata originating from Miri Division are listed. Surveys of more than one day duration in Miri Division and covered here are tabulated with the funding source where appropriate; four of the surveys covered here were funded by the International Dragonfly Fund. One hundred and eighty-eight species are listed based on surveys made by the authors, of which Macromia jucunda Lieftinck, 1955, had not been recorded from Borneo before, Burmagomphus arthuri Lieftinck, 1953 is a new record for Miri Division and Camacinia gigantea (Brauer, 1867) has only been recorded from the Division re-cently with the only published record in a difficult to access publication (Choong (2020)). At least 48 more of the species listed were recorded from Miri Division for the first time in surveys covered in this report, although the records have been published (in most cases with no details beyond division and district in Dow (2021)) before. Two forms of Xiphi-agrion cyanomelas Selys, 1876 are recorded and the likelihood that they represent different species is discussed. A possibly new, large sized, species of Macromia allied to M. westwoodii Selys, 1874 is recorded and discussed. Other notable records not published with details before include Rhinocypha stygia Förster, 1897, Rhinoneura caerulea Kimmins, 1936, Dysphaea lugens (Selys, 1873), Euphaea ameeka van Tol & Norma-Rashid, 1995, Euphaea basalis (Laidlaw, 1915), Amphicnemis new sp. cf mariae Lieftinck, 1940 (previously recorded from Usun Apau National Park), Anaciaeschna jaspidea (Burmeister, 1839), Heliaeschna uninervulata Martin, 1909, Borneogomphus sp., Heliogomphus borneensis Lieftinck, 1964, Ictinogomphus acutus (Laidlaw, 1914), Chlorogomphus sp., Macromia corycia Laidlaw, 1922, Idionyx montana Karsch, 1891, Hylaeothemis clementia Ris, 1909, Orchithemis xanthosoma Laidlaw, 1911, Rhyothemis fulgens Kirby, 1889, Rhyothemis regia (Brauer, 1867), Tetrathemis sp. cf platyptera Selys, 1878, Tramea phaeoneura Lieftinck, 1953 and Tramea sp. cf virginia (Rambur, 1842). The habitat preferences of Dysphaea lugens are discussed. A male-male tandem of Coeliccia nigrohamata Laidlaw, 1918 is reported. The somewhat peculiar distribution of Argiocnemis rubescens rubeola Selys, 1877 and Pseudothemis jorina Förster, 1904 in Sarawak is discussed. Activity of the apparently normally crepuscular Heliaeschna uninervulata in the middle of the day is reported. An interesting morphological detail of some female Chlorogomphus from Sarawak is discussed. The likelihood that Macromia corycia is a junior synonym of M. gerstaeckeri Krüger, 1899 is discussed. The possibility that the range of Rhyothemis regia is expanding in Sarawak is remarked upon. The identity of Tramea sp. cf virginia is discussed. With the records presented here at least 222 species of Odonata are known from Miri Division and with the addition of Macromia jucunda to the known fauna, 309 species have now been recorded from Sarawak. More detailed specimen records are given in Appendix 1 and a revised checklist of Odonata from Lambir Hills National Park and the first checklis from Loagan Bunut, Niah and Pulong Tau National Parks are given in Appendix 2

Previously unpublished Odonata records from Sarawak, Borneo, part VI: Miri Division including checklists for Niah, Lambir Hills, Loagan Bunut and Pulong Tau National Parks.

Recods of Odonata made from 2005 to 2020 in Miri Division in Sarawak are presented, including records from Lambir Hills, Loagan Bunut, Niah and Pulong Tau National Parks. Primary types of Odonata originating from Miri Division are listed. Surveys of more than one day duration in Miri Division and covered here are tabulated with the funding source where appropriate; four of the surveys covered here were funded by the International Dragonfly Fund. One hundred and eighty-eight species are listed based on surveys made by the authors, of which Macromia jucunda Lieftinck, 1955, had not been recorded from Borneo before, Burmagomphus arthuri Lieftinck, 1953 is a new record for Miri Division and Camacinia gigantea (Brauer, 1867) has only been recorded from the Division re-cently with the only published record in a difficult to access publication (Choong (2020)). At least 48 more of the species listed were recorded from Miri Division for the first time in surveys covered in this report, although the records have been published (in most cases with no details beyond division and district in Dow (2021)) before. Two forms of Xiphi-agrion cyanomelas Selys, 1876 are recorded and the likelihood that they represent different species is discussed. A possibly new, large sized, species of Macromia allied to M. westwoodii Selys, 1874 is recorded and discussed. Other notable records not published with details before include Rhinocypha stygia Förster, 1897, Rhinoneura caerulea Kimmins, 1936, Dysphaea lugens (Selys, 1873), Euphaea ameeka van Tol & Norma-Rashid, 1995, Euphaea basalis (Laidlaw, 1915), Amphicnemis new sp. cf mariae Lieftinck, 1940 (previously recorded from Usun Apau National Park), Anaciaeschna jaspidea (Burmeister, 1839), Heliaeschna uninervulata Martin, 1909, Borneogomphus sp., Heliogomphus borneensis Lieftinck, 1964, Ictinogomphus acutus (Laidlaw, 1914), Chlorogomphus sp., Macromia corycia Laidlaw, 1922, Idionyx montana Karsch, 1891, Hylaeothemis clementia Ris, 1909, Orchithemis xanthosoma Laidlaw, 1911, Rhyothemis fulgens Kirby, 1889, Rhyothemis regia (Brauer, 1867), Tetrathemis sp. cf platyptera Selys, 1878, Tramea phaeoneura Lieftinck, 1953 and Tramea sp. cf virginia (Rambur, 1842). The habitat preferences of Dysphaea lugens are discussed. A male-male tandem of Coeliccia nigrohamata Laidlaw, 1918 is reported. The somewhat peculiar distribution of Argiocnemis rubescens rubeola Selys, 1877 and Pseudothemis jorina Förster, 1904 in Sarawak is discussed. Activity of the apparently normally crepuscular Heliaeschna uninervulata in the middle of the day is reported. An interesting morphological detail of some female Chlorogomphus from Sarawak is discussed. The likelihood that Macromia corycia is a junior synonym of M. gerstaeckeri Krüger, 1899 is discussed. The possibility that the range of Rhyothemis regia is expanding in Sarawak is remarked upon. The identity of Tramea sp. cf virginia is discussed. With the records presented here at least 222 species of Odonata are known from Miri Division and with the addition of Macromia jucunda to the known fauna, 309 species have now been recorded from Sarawak. More detailed specimen records are given in Appendix 1 and a revised checklist of Odonata from Lambir Hills National Park and the first checklis from Loagan Bunut, Niah and Pulong Tau National Parks are given in Appendix 2

Coeliccia borneensis Selys 1886

Coeliccia borneensis (Selys, 1886) New material. All from Sarawak, in coll. Dow except as noted. ‘Eastern form’: 7 3 (1 in ethanol in RMNH), Miri division, mid Baram area, Gunung Kalulong, small high gradient streams, ca 830–900m, 8 –X– 2009, leg. RAD; 3, same mountain, stream at 700–800m, 17 –VII– 2010, leg. RAD; 3, same mountain, stream at ca 700m, 18 –VII– 2010, leg. RAD; 6 3, same area, Batu Uro’, small high gradient forest streams, 15 –VII- 2010, leg. L. Southwell & W. Kebing; 5 3, same location, 16 –VII– 2010, leg. RAD; 2 3, same location and date, leg. M. Kibi; 3, same location and date, leg. L. Southwell; 2 3, same area, tributary to Sungai Pawan in highly disturbed forest, 19 –VII– 2010, leg. RAD; 3, Miri division, south of Mount Dulit, Sungai Lobang upstream of Long Liau, 4 – V– 2010, leg. L. Southwell & M. Kibi; 3, Kapit division, Kapit town area, Sebabi Recreational Park, in forest near Sungai Sebabi, 20 –X– 2009, leg. RAD; 3, same area, tributary to Sungai Ulu Yong, 21 –X– 2009, leg. L. Southwell; Ƥ, Bintulu division, Kakus district, ‘Camp C’, on steep slope above camp water catchment stream, 25 –VI- 2010, leg. RAD; 2 3, 2 ƤƤ, Bintulu division, south of Tatau, Anap Muput Forest Management Unit, tributary to Sungai Sebelalang, 20 –XI– 2010, leg. RAD. ‘Western form’: Ƥ, Miri division, mid Baram, Gunung Kalulong, trailside at ca 700m, 7 –X– 2009, leg. RAD; Ƥ, Kapit division, Hose Mountains, stream at 920–1020m, 17 –V– 2010, leg. RAD; Ƥ, same mountains, stream at 1200–1250m, 18 –V– 2010; leg. RAD; Ƥ (teneral), same mountains, large stream in montane forest at 1300–1400m, 19 –V– 2010, leg. L. Southwell; 3, Ƥ, foot of same mountains, tributary to waterfall stream near Rumah Jala, 21 – V– 2010, leg. M. Budi; 2 3, Kapit division, Kapit town area, Sebabi Recreational Park, tributary to Sungai Sebabi, 20 –X– 2009, leg. RAD; 3, same area, tributary to Sungai Ulu Yong, 12 –V– 2010, leg. RAD; Ƥ, same location and date, leg. GTR; Ƥ, Bintulu division, Sarawak Planted Forests Project, Tubau, block E 2 N, stream in highly disturbed forest, 16 –VI– 2010, leg. RAD; Remarks. See Dow (2010) for a discussion of the ‘eastern’ and ‘western’ forms; the differences noted in that publication hold for the new specimens listed here as well. The division as ‘eastern’ and ‘western’ forms no longer seems tenable given the large overlap in their distributions that is now evident; it is very likely that they represent distinct species, but in the absence of any convincing structural differences in the male I prefer to leave a final decision on its status at least until molecular results are available. The teneral female from high altitude in the Hose Mountains, listed under the ‘western’ form is questionably referred here.Published as part of Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, pp. 63-68 in Zootaxa 2832 on page 64, DOI: 10.5281/zenodo.27732

Coeliccia southwelli Dow & Reels, 2011, sp. nov.

Coeliccia southwelli sp. nov. (Figs. 1–8) Coeliccia species B.— Dow 2010: 155 (Ƥ Mount Dulit). Material. Holotype: 3 (SAR09_ 10 _PCD 30, RMNH), Sarawak, Kapit division, southwest face of Mount Dulit, by small low gradient stream in disturbed montane forest, 3 ° 15.276 ’ N 114 ° 16.088 ’ E, ca 1095m, 29 –IX– 2009, leg. RAD. Paratypes: 2 ƤƤ (SAR09_ 10 _PCD 15-16), same area, head of rocky stream in disturbed forest, 3 ° 14.375 ’ N 114 ° 16.421 ’ E, ca 1022m, 30 –IX– 2009, leg. M. Kibi, in coll. Dow, SAR09_ 10 _PCD 16 teneral and in poor condition; Ƥ: Malaysian Borneo, Sarawak, Miri division, Mt Dulit, 20 –X– 1932, leg. B.M. Hobby & A.W. Moore, in BMNH, head detached, in gelatine capsule, abdomen and wings on right hand side detached, abdomen previously broken and glued. In addition to the original labels, a folded white, handwritten, paper rectangle is present on the pin, added by K.-D.B. Dijkstra: “not campioni!//nov. spec.?” Etymology. southwelli, a noun in the genitive case. Named for our very good friend Luke Southwell from Miri in Sarawak, who has been a vital figure in all of our trips to Mount Dulit, and without whose initiative the trip on which the holotype and two of the paratypes were collected would not have taken place; and in memory of his son, John Hudson Southwell, who tragically passed away on 31 January 2011. Description. Holotype male. Head: Labium pale except for black end hooks of labial palp. Labrum and postclypeus shining black, anteclypeus, mandible bases and genae blue. Rest of head black, with exceptions as noted below. An irregular pale yellow stripe extending diagonally from lateral ocellus behind the antennae to the eye margin. Scape with pale ring at top, similar at base of pedicel, which is dark brown at top. Small, transversely orientated yellow postocular spots. Thorax: Prothorax (Fig. 1) with anterior pronotal lobe black except for yellow corners, continuous with large yellow markings occupying most of median pronotal lobe. Posterior pronotal lobe black, broad and deep, of simple shape. Notopleural stripe with irregular outline. Synthorax with mesepisternum black with long yellow antehumeral stripes. Antealar triangles black. Mesepimeron mostly black, with a small triangular yellow marking in the upper posterior corner. Metepisternum yellow except for a very narrow dark area along the interpleural suture at rear 1 / 3 and a wider black band above the posterior part of the metapleural suture, terminating before the spiracle, extending alongside lower 2 / 3 of the antealar carina. Metepimeron largely yellow. Venter of synthorax pale yellow. Mesinfraepisternum entirely black except for the lower posterior corner, which is yellow. Metinfraepisternum pale yellow. Axillaries dorsally mostly black, metascutum largely yellow. Legs: coxae and trochanters pale yellow. Femora pale yellow with dark markings as follows: on distal part of all legs and extending along most of the flexor surface on the anterior pair, and along the outer margin of the extensor surface for almost the entire length on all legs. Tibiae brown near femora, this extending along the flexor surface on all legs, otherwise coloured dirty cream, dark distally. Tarsi dark brown with extensive pale areas. Wings: Fw with 16 Px, 15 Px in Hw. Pt dark brown with narrow pale margin, almost rectangular, covering slightly more than one underlying cell. Abdomen: S 1 yellow laterally except for a brown apical band, dorsally with a basal brown area. S 2 pale brown, slightly lighter below, darker apically. S 3–7 brown above, darker apically, lighter on lower part of sides and with dorsal brown becoming progressively darker on each segment. S 3 with a medially interrupted narrow pale anterior band, on S 4–7 this band is present, but becomes progressively fainter. S 8 black dorsally and on upper part of sides, pale below, blue behind posterior carina dorsally. S 9 dorsally with a large blue marking (Fig. 7), black laterally and blue behind posterior carina. S 10 black with a dorsal blue marking (Fig. 7). Cerci black, paraprocts black, pale interiorly and ventrally. Cerci with tips strongly down-turned (Fig. 5), a long tooth on inner side (Fig. 4), directed downwards and strongly basally, inserted at just after mid length, with a second ventral tooth, directed downwards and slightly basally at ca 2 / 3 length visible in lateral view (Fig. 5). Paraprocts in lateral view projecting beyond cerci, upper margin with a prominent hump shortly before the tip, then abruptly narrowed, and flattened, tapering to and in-curved at tip; in ventral view (Fig. 6) broad at base and tapering gradually, then quite abruptly narrowing and tapering to tips, which are pointed inwards towards each other. Measurements (mm): Abdomen without appendages 37, cerci ca 0.75, Hw 23. Female. [SAR09_ 10 _PCD 15] As male except as noted below. Head: Stripes from lateral ocelli to eye margins pale green-blue. Thorax: Prothorax as shown in Figs. 2–3, with a large notopleural projection, median pronotal lobe short centrally and produced laterally into a spine, posterior pronotal lobe large, nearly obscuring the mesostigmal plates. Pale markings on propleuron yellow, those on median pronotal lobe pale blue. Synthorax with mesostigmal plates only slightly raised along free margin, with just a few short hairs. Markings of synthorax almost identical to male, but antehumeral stripes bluish yellow. Wings with 15 Px in Fw, 15 (left) or 13 (right) Px in Hw. Pt greyish brown with narrow pale margin (barely evident in right Fw), shorter and deeper than in male. Abdomen: As male to S 7, S 8 with triangular blue dorsal mark (Fig. 8), S 9–10 black. Ovipositor extending beyond S 10 by slightly more than the length of S 10, mottled dark brown and pale. Measurements (mm): Abdomen without cerci or ovipositor 37.5, Hw 25.5. Variation in paratype females. The condition of the teneral paratype prevents a detailed comparison, but the prothoracic structures are the same as in the female described, while the colouration is generally paler. In the BMNH female the only differences are the presence of two small pale marks between the ocelli and some other very small and insignificant differences in markings; this specimen has the abdomen without ovipositor 37 mm, Hw 24 mm. Remarks. The male of C. southwelli is easily distinguished from that of all other named borneensis -group species by the possession of two teeth on the cercus, and the remarkable length of the interior tooth. C. southwelli appears to be most closely allied with C. arcuata, and with Coeliccia sp from Ulu Barito, Kalimantan reported in Dow (2010), known from a single specimen in poor condition. In most respects the male of C. southwelli corresponds closely with that of the Ulu Barito specimen. Apart from colour differences that are almost certainly due to the teneral nature of the Ulu Barito specimen, the only differences are in the dorsal markings of the terminal abdominal segments and in the anal appendages. In particular the second, ventral tooth on the cerci of C. southwelli is not apparent on those of the Ulu Barito specimen; however the first author has examined the cerci of the Ulu Barito male in detail and was still unable to be completely sure that that ventral teeth were not present, just crushed and folded so as to be obscured. It is likely that the Ulu Barito specimen represents a distinct, but closely related, species to C. southwelli, but without fresh material of the former the issue cannot be satisfactorily resolved. The female of C. southwelli is associated with the male by supposition only, but no other species from the borneensis -group has yet been found above 1000m on Mt Dulit. It differs from all other members of the borneensis -group except for C. arcuata Lieftinck, 1940 in possessing large notopleural projections, but no median pronotal lobe projections, from C. arcuata by the broad posterior pronotal lobe, and from all species in the spines present at the rear lateral part of the median pronotal lobe. In the keys given in Dow (2010) the male of C. southwelli comes out as C. sp (the Ulu Barito species), whilst the female breaks the key. The male key should be modified as follows: 4. Cerci with a short interior basally directed spine at about a third of length from base. Paraprocts down-turned from about midpoint in lateral view............................................................................ C. arcuata - Cerci with a very long interior spine, basally and downwards directed, inserted just beyond the midpoint and a second ventrally and slightly basally directed tooth visible in lateral view, inserted at ca 2 / 3 length. Paraprocts not down-turned in lateral view, abruptly narrowed at the level of the tips of the cerci, with a conspicuous dorsal hump immediately before the contraction............................................................................................. C. southwelli The female key should be modified as follows: 3. Posterior pronotal lobe narrow, flat, tapering caudad, without lateral projections........................... C. arcuata - Posterior pronotal lobe broad, not tapering caudad, with or without lateral projections............................. 3 ’. 3 ’. Median pronotal lobe projections present, posterior pronotal lobe with well-developed lateral projections............... 4. - Median pronotal lobe projections absent, posterior pronotal lobe without well-developed lateral projections.... C. southwelli Distribution and habitat. C. southwelli is known only from above 1000m on Mount Dulit. The holotype was collected by a small, very steep sided low gradient stream in disturbed montane forest. The females collected in 2009 were at a rocky, higher gradient, stream in disturbed forest. It is the fourth species from the borneensis- group to be found on Mount Dulit.Published as part of Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, pp. 63-68 in Zootaxa 2832 on pages 65-68, DOI: 10.5281/zenodo.27732

Coeliccia flavostriata Laidlaw 1918

Coeliccia flavostriata Laidlaw, 1918 New material. All in coll. Dow, all from Sarawak, Kuching division, Kubah National Park, Gunung Serapi, various steep forest streams from ca 100–680m, all leg. RAD: 3 (teneral), 13 –VIII– 2009; 4 3, 1 Ƥ, 6 –IX– 2009; 3 3, 7–IX– 2009; 2 3, 8–IX–2009, 2 3, 8–IX– 2009; 3, 28–X– 2009; 2 3, 25–IV– 2010; 4 3, 3–VI– 2010; 3, Ƥ (in tandem), 27 –VII– 2010; 3 3, 28–VII– 2010.Published as part of Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, pp. 63-68 in Zootaxa 2832 on page 64, DOI: 10.5281/zenodo.27732

Drepanosticta adenani sp. nov., from the Lanjak Entimau Wildlife Sanctuary in Sarawak (Odonata: Zygoptera: Platystictidae)

Dow, Rory A., Reels, Graham T. (2018): Drepanosticta adenani sp. nov., from the Lanjak Entimau Wildlife Sanctuary in Sarawak (Odonata: Zygoptera: Platystictidae). Zootaxa 4379 (3): 429-435, DOI: https://doi.org/10.11646/zootaxa.4379.3.

Odonata from the Borneo Highlands Resort on Gunung Penrissen, Kuching Division, Sarawak, Malaysia 2014-2016

Records of Odonata collected in the vicinity of the Borneo Highlands Resort on Gunung Penrissen in south western Sarawak in the period 2014-2016 are presented. Notable records include new species of Telosticta Dow & Orr, 2012, Rhinocypha Rambur, 1842 and Leptogomphus Selys, 1878, as well as the first record of the recently described genus Borneogomphus Karube & Sasamoto, 2014 from Sarawak

Odonata collected at Usun Apau National Park, Miri Division, Sarawak, Malaysia in April and May 2012

Results of a collecting expedition to the remote Usun Apau plateau in Sarawak are presented. Interesting records include Telosticta kajang (previously only known from the holotype), Coeliccia new species, Amphicnemis new species