Description of two new species of the Exocelinabroschii-group from Papua New Guinea, with revision and key to all representatives of this species group (Coleoptera, Dytiscidae, Copelatinae) Author Shaverdo, Helena Author Sagata, Katayo Author Balke, Michael text ZooKeys 2016 577 125 148 http://dx.doi.org/10.3897/zookeys.577.7254 journal article http://dx.doi.org/10.3897/zookeys.577.7254 1313-2970-577-125 327F242512D544E28CD6E5BC91773077 Taxon classification Animalia Coleoptera Dytiscidae 2. Exocelina hintelmannae (Shaverdo, Sagata & Balke, 2005) Figs 4, 9F, G Papuadytes hintelmannae Shaverdo, Sagata & Balke, 2005: 272. Exocelina hintelmannae (Shaverdo, Sagata & Balke, 2005): Nilsson 2007 : 33 (comb. n.); Toussaint et al. 2014 : Supplementary figs 1-4, tab. 2. (MB 1367). Type locality. Papua New Guinea: border Simbu and Eastern Highlands Provinces, Crater Mountain, between Wara Sera Station and Herowana Village, Hulene River, approximately 06°43.4'S ; 145°05.6'E . Type material studied. Holotype : male "264 DNA M Balke" [green], "PNG Simbu / EHPr. Crater Mountain, Sera - Herowana, Wara Hulene, 1000 m, 16IX2002, Balke & Sagata (PNG 17)", "Holotypus Papuadytes hintelmannae sp.n. des. H. Shaverdo, K. Sagata & M. Balke, 2005" (BMNH). Paratypes : 1 male "256 DNA M Balke" [green], "Papua New Guinea Simbu / EHPr. Crater Mountain, Wara Sera Station, 800 m, 14IX2002, Balke & Sagata (PNG 10)", "Paratypus Papuadytes hintelmannae sp.n. des. H. Shaverdo, K. Sagata & M. Balke, 2005" (NHMW). 1 male "260 DNA M Balke" [green], "PNG Simbu / EHPr. Crater Mountain, Sera - Herowana, upper Oh River, 1200 m, 15IX2002, Balke & Sagata (PNG 12)", "Paratypus Papuadytes hintelmannae sp.n. des. H. Shaverdo, K. Sagata & M. Balke, 2005" (NHMW). Additional material. Simbu/EHL: 1 female "Papua New Guinea: Simbu / EHPr. Crater Mountain, Wara Sera Station, 820m, 14IX2002, Balke & Sagata, (PNG 8)" (ZSM). 2 males, 6 females "Papua New Guinea: Simbu / EHP. Crater Mountain, Wara Sera Station, 800m, 14IX2002, Balke & Sagata, (PNG 009)" (ZSM). 17 males, 15 females "Papua New Guinea: Crater Mountain, Wara Sera Station, 800m, 14IX2002, Balke & Sagata, (PNG 010)" (NARI, NHMW, ZSM). 8 males, 9 females "Papua New Guinea Simbu/EHP. Crater Mountain, Wara Sera Station, 800m, 14IX2002, Balke & Sagata, (PNG 10)" (NHMW, ZSM). 3 males, 4 females "Papua New Guinea: Simbu / EHP. Crater Mountain, Sera - Herowana, Wara Pima, 900m, 15IX2002, Balke & Sagata (PNG 011)" (ZSM). 7 males, 14 females "Papua New Guinea: Crater Mountain, Sera - Herowana, upper Oh river, 1200m, 15IX2002, Balke & Sagata (PNG 012)" (NHMW, ZSM). 1 male, 1 female "Papua New Guinea: Crater Mountain, Sera - Herowana, Jau river, 1100m, 15IX2002, Balke & Sagata (PNG 013)" (ZSM). 8 males, 7 females "Papua New Guinea: Crater Mountain, Sera - Herowana, Jau river, 1000m, 15IX2002, Balke & Sagata (PNG 015)" (NHMW, ZSM). 12 males, 10 females "Papua New Guinea: Simbu/EHP. Crater Mountain, Sera - Herowana, Hulene river, 1000m, 16IX2002, Balke & Sagata (PNG 017)" (NHMW, ZSM). 25 males, 33 females "Papua New Guinea: Simbu / EHP. Crater Mountain, Herowana, Yawasa River, 1200m, 17.IX.2003, Balke & Sagata (PNG 019)" (NARI, NHMW, ZSM). Simbu: 8 males, 13 females "Papua New Guinea: Supa Haia, 1032, 10.xi.2002, K. Sagata, (WB1)" (NHMW, ZSM). EHL: 1 male "Stn. No. 177a", "NEW GUINEA: E. Highland Dist., Wanatabe Valley. Nr. Okapa, c. 5000 ft. 5.ii.1965", "M.E. Bacchus. B.M. 195-120" (BMNH). Gulf: 30 males, 30 females "Papua New Guinea: Gulf, Marawaka, nr. Ande, 1000m, 10.xi.2006, 07.03.598S 145.4.375E, Balke & Kinibel (PNG 89)", one of them an additional green label "DNA M.Balke 1367" (NHMW, ZSM). 32 males, 35 females "Papua New Guinea: Gulf Province, Marawaka, Mala, 1400m, 11.xi.2006, 07.05.664S 145.44.467E, Balke & Kinibel, (PNG 90)" (NARI, NHMW, ZSM). 16 male, 12 females "Papua New Guinea: Gulf, Marawaka, Andakombe towards Morobe, 1100m, 12 .xi.200, 07.09.766S 145.46.333E, Balke & Kinibel (PNG 92)" (NHMW, ZSM). 1 male, 3 females "Papua New Guinea: Gulf, Marawaka, Andakombe towards Morobe, 1500m, 12.xi.200, 07.10.413S 145.49.555E, Balke & Kinibel (PNG 93)", the male with an additional green label "DNA M.Balke 1362" (ZSM). Additions to the description (original description in Shaverdo et al. 2005 , p. 272). Size and shape: Beetles medium-sized (TL-H 3.4-4.15 mm, TL 3.75-4.55 mm, MW 1.8-2.2 mm; holotype : TL-H 3.9 mm, TL 4.3 mm, MW 2.05 mm), see Fig. 4. Female: Without evident differences in external morphology from males, except for not modified protarsi and abdominal ventrite 6 without striae. Variability: Beetles vary in shape of the median lobe and its ventral sclerite: mainly shape and length of its left lobe (Fig. 9F, G). Distribution. Papua New Guinea: Simbu, Eastern Highlands, and Gulf Provinces (Fig. 14).