Perkins Philip D
Department of Entomology, Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138 USA..
Zootaxa. 2017 Nov 3;4342(1):1-264. doi: 10.11646/zootaxa.4342.1.1.
The Madagascar fauna of the beetle family Hydraenidae is comprehensively revised, based on the study and databasing of 6,949 specimens. New collection records are provided for 11 previously described species, and 95 new species are described. Three new subgenera of Hydraena, viz. H. (Micromadraena), H. (Monomadraena), and H. (Dnahydnaedna) are described, and several new species groups of Hydraena are diagnosed. Two new genera in the tribe Madagastrini are described: Menomadraena and Trinomadraena. The Malagasy hydraenid fauna now comprises 106 species arrayed in the following nine genera: Aulacochthebius (2), Hydraena (65), Limnebius (10), Madagaster (8), Menomadraena (6), Ochthebius (1), Protozantaena (5), Sicilicula (8), and Trinomadraena (1). Lectotypes are designated for the following species: Aulacochthebius plicicollis (Fairmaire), 1898 (Ochthebius); Hydraena dilutipes Fairmaire, 1898; Hydraena impressicollis Fairmaire, 1898; Hydraena marginicollis Regimbart, 1903 (= Hydraena regimbarti Zaitzev 1908; nomen novum); and Ochthebius alluaudi Regimbart, 1903. Hydraena discicollis Fairmaire, 1898, is considered a nomen dubium: no type specimens were found, and the description appears to be that of a species of Aulacochthebius or Ochthebius, not Hydraena. High resolution digital images of lectotypes and holotypes of new species are presented (online versions in color). Male genitalia, representative antennae, maxillary palpi, and female terminal abdominal segments and spermathecae are illustrated. Geographic distributions of all species are mapped. Possible colonization and vicariance events are discussed at the tribal, generic and species group levels. The tribe Madagastrini, found only in Madagascar and southern India, is hygropetric, indicating that this microhabitat type has been continuously present in both Madagascar and India at least since the two separated, currently estimated to be 88 million years ago. Contrastingly, some lowland lentic species of other genera appear to be closely related to species in southern Africa, suggesting rather recent colonization events. New species of Aulacochthebius: A. perlaevis (Mahajanga, Boeny: Mahavavy Kinkony RS). New species of Hydraena (Micromadraena): H. breviceps (Fianarantsoa, 29 km SSW Ambositra, Ankazomivady); H. fortipes (Antsiranana, Forêt d' Antsahabe); H. genuvela (Antsiranana, Forêt de Binara); H. parvipalpis (Antananarivo, Réserve Spéciale d'Ambohitantely); H. rubridentata ((Mahajanga, Parc National de Namoroka); H. serripennis (Antsiranana, Forêt d' Antsahabe). New species of Hydraena (Monomadraena): H. acicula (Antsiranana, Antsaba, Galoko Mountains); H. ambohitantely (Antananarivo, Ambohitantely Spec. Res.); H. amplexa (Fianarantsoa, Andringitra NP); H. amplipunctata (Fianarantsoa, 7 km W Ranomafana); H. antsahabe (Antsiranana, Forêt d' Antsahabe); H. bergsteni (Antsiranana, Diana: Beraty); H. bisinuata (Toamasina, Tamatave 6.3 km S Ambanizona); H. bisinuloba (Toliara, Menabe: Kirindy RS.); H. bispica (Toamasina, Alaotra Mangoro: Analamazoatra SR); H. casacolumna (Fianarantsoa, Andringitra NP); H. compacta (Antananarivo, Ankaratra, Reserve Manjakatompo); H. contracolorata (Antsiranana, Montagne des Francais); H. epipleurata (Antsiranana, Forêt de Binara); H. furcula (Toliara, 40km N of Fort Dauphin, Managotry); H. gereckei (Antananarivo, Ankaratra, Reserve Manjakatompo); H. goldschmidti (Antananarivo, Anjozorobe, Ravoandrina); H. inseriata (Antananarivo, Anjozorobe, Ravoandrina); H. jubata (Antsiranana, Sava Marojejy NP); H. levifurcata (Fianarantsoa, Namarona River, 7 km SW Ranomafana); H. lubrica (Antananarivo, Ambohitantely Spec. Res.); H. mahavavona (Fianarantsoa, Ionilahy, Mahavavona); H. manjakatompo (Antananarivo, Ankaratra, Reserve Manjakatompo); H. marojejy (Antsiranana, Parc National de Marojejy); H. multiarcuata (Fianarantsoa, Ranomafana); H. oscillata (Toamasina, Alaotra Mangoro Andasibe-Mantadia NP); H. parvispinosa (Toamasina, Andasibe NP); H. pentarubra (Antsiranana, Montagne d'Ambre); H. quatriloba (Toliara, Andohahela NP, Tsimelahy); H. ranomafana (Fianarantsoa, Ranomafana); H. ravoandrina (Antananarivo, Anjozorobe, Ravoandrina); H. rubrifurcata (Antsiranana, Sava, Marojejy NP); H. sculponea (Antsiranana, Befingotra (9.2 km WSW), Res. Anjanaharibe-Sud); H. simplicata (Antsiranana, Montagne d'Ambre); H. tibiodentipes (Fianarantsoa, Andringitra NP); H. triaequalis (Fianarantsoa, Ranohira); H. tripartita (Fianarantsoa, Ranomena); H. upsilonica (Toamasina, Zahamena NP); New species of Hydraena (Hydraenopsis): H. andranomena (Toliara, Andranomena); H. arta (Antsiranana, Parc National de Marojejy); H. bucollis (Toamasina, Tamatave, Andranobe Field Station); H. clavulata (Fianarantsoa, Ranomafana); H. contorta (Antananarivo, Anjozorobe forest reserve); H. dilutipoides (Mahajanga, Parc National Tsingy de Bemaraha); H. divisa (Antsiranana, Antsaba,Galoko Mountains); H. elementaria (Antananarivo, Tamatave, Coastal lagoon); H. fulgidicollis (Antananarivo, Parc de Tsimbazaza); H. longiloba (Fianarantsoa, Madiorano); H. nanula (Antsiranana, Ankarana, Ampositelo); H. orchisa (Toamasina, Alaotra Mangoro Andasibe-Mantadia NP); H. pilobova (Antsiranana, Sava, Marojejy NP); H. pilotumida (Fianarantsoa, 7 km W Ranomafana); H. ranarilalatiani (Toamasina, Alaotra Mangoro: Analamazoatra SR); H. randriamihajai (Antsiranana, Diana: Montagne d'Ambre NP); H. renalisa (Antsiranana, Sambava: Marojejy NP); H. sinuatipes (Antsiranana, Ankarana); H. torquata (Fianarantsoa, Andringitra NP). New species of Limnebius: L. angulatus (Fianarantsoa, Namarona River, 7 km W Ranomafana); L. balkei (Antsiranana, Montagne d'Ambre); L. bergsteni (Fianarantsoa, Namarona River, 7 km W Ranomafana); L. clandestinus (Mahajanga, Boeny:Mahavavy Kinkony RSc); L. labratus (Toamasina, Maroantsetra); L. lacrimosus (Toamasina, 18.7911S 48.4259E Alaotra Mangoro Andasibe-Mantadia NP); L. lobatus (Toliara, Manakaravavy); L. maximadus (Toamasina, Alaotra Mangoro: Analamazoatra SR); L. nanostillus (Antsiranana, Ankarana); L. steineri (Fianarantsoa, 7 km W Ranomafana). New species of Madagaster: M. barbata (Fianarantsoa, Andringitra NP); M. bergsteni (Antananarivo, 18.8704S 47.6708E Analamanga); M. cataracta (Antsiranana, Sava, Marojejy NP); M. procarina (Fianarantsoa, 32 km S Ambositra); M. quadricurvipes (Fianarantsoa, Andringitra NP); M. simplissima (Fianarantsoa, 32 km S Ambositra). New species of Menomadraena: M. andringitra (Fianarantsoa, Res. Andringitra); M. concava (Fianarantsoa, R.S. Ivohibe); M. fisheri (Toliara, Enakara (11 km NW), Res. Andohahela); M. ivohibe (Fianarantsoa, R.S. Ivohibe); M. nitedula (Fianarantsoa, Res. Andringitra); M. sembella (Fianarantsoa, Amparihibe). New species of Protozantaena: P. duplicata (Antananarivo, Vakinankaratra: Manjakatompo Stn. Forestière); P. elongata (Antananarivo, Vakinankaratra: Manjakatompo Stn. Forestière). New species of Sicilicula: S. ampla (Antananarivo, Onive River near Ilempona); S. bergsteni (Fianarantsoa, 21.2263S 47.3694E, Matsiara Ambony, Ranomafana NP); S. conjugalis (Fianarantsoa, Namarona River, 7 km SW Ranomafana); S. cordicollis (Fianarantsoa, Namarona River, 7 km SW Ranomafana); S. hygropetrica (Fianarantsoa, Matsiara Ambony, Ranomafana NP); S. malagasica (Fianarantsoa, Abohimahasoa); S. sexplanata (Antsiranana, Mt. Tsaratanana). New species of Trinomadraena: T. clusa (Antsiranana, Mt. d'Ambre).
基于对6949个标本的研究和数据库建设，对马达加斯加的龙虱科甲虫动物群进行了全面修订。给出了11个先前描述物种的新采集记录，并描述了95个新物种。描述了龙虱属的3个新亚属，即H. (Micromadraena)、H. (Monomadraena) 和H. (Dnahydnaedna)，并划分了龙虱属的几个新物种组。描述了马达加斯加龙虱族中的2个新属：Menomadraena和Trinomadraena。马达加斯加的龙虱科动物群现在包括106个物种，分属于以下9个属：Aulacochthebius（2种）、Hydraena（65种）、Limnebius（10种）、Madagaster（8种）、Menomadraena（6种）、Ochthebius（1种）、Protozantaena（5种）、Sicilicula（8种）和Trinomadraena（1种）。为以下物种指定了选模标本：Aulacochthebius plicicollis (Fairmaire, 1898)（Ochthebius属）；Hydraena dilutipes Fairmaire, 1898；Hydraena impressicollis Fairmaire, 1898；Hydraena marginicollis Regimbart, 1903（= Hydraena regimbarti Zaitzev 1908；新名称）；以及Ochthebius alluaudi Regimbart, 1903。Hydraena discicollis Fairmaire, 1898被视为疑名：未找到模式标本，其描述似乎是Aulacochthebius属或Ochthebius属的一个物种，而非Hydraena属。展示了新物种选模标本和全模标本的高分辨率数字图像（在线彩色版本）。对雄性生殖器、代表性触角、下颚须以及雌性腹部末端节段和受精囊进行了图示。绘制了所有物种的地理分布图。在族、属和物种组层面讨论了可能的定殖和分布区断裂事件。仅在马达加斯加和印度南部发现的马达加斯加龙虱族是喜湿石栖性的，这表明至少自马达加斯加和印度在约8800万年前分离以来，这种微生境类型在两地一直持续存在。相比之下，其他属的一些低地静水物种似乎与非洲南部的物种关系密切，表明是较近期的定殖事件。Aulacochthebius属的新物种：A. perlaevis（马哈赞加省，博尼区：马哈瓦维金孔尼河流域保护区）。Hydraena (Micromadraena)属的新物种：H. breviceps（菲亚纳兰楚阿省，安布西特拉西南29公里处，安卡佐米瓦迪）；H. fortipes（安齐拉纳纳省，安察哈贝森林）；H. genuvela（安齐拉纳纳省，比纳拉森林）；H. parvipalpis（塔那那利佛省，安布希坦泰利特别保护区）；H. rubridentata（马哈赞加省，纳莫罗卡国家公园）；H. serripennis（安齐拉纳纳省，安察哈贝森林）。Hydraena (Monomadraena)属的新物种：H. acicula（安齐拉纳纳省，安察巴，加洛科山）；H. ambohitantely（塔那那利佛省，安布希坦泰利特别保护区）；H. amplexa（菲亚纳兰楚阿省，安德林吉特拉国家公园）；H. amplipunctata（菲亚纳兰楚阿省，拉努马法纳以西7公里处）；H. antsahabe（安齐拉纳纳省，安察哈贝森林）；H. bergsteni（安齐拉纳纳省，迪耶纳区：贝拉蒂）；H. bisinuata（图阿马西纳省，塔马塔夫以南6.3公里处，安巴尼佐纳）；H. bisinuloba（图利亚拉省，梅纳贝区：基林迪森林保护区）；H. bispica（图阿马西纳省，阿拉奥特拉-曼古罗区：阿纳拉马佐阿特拉特别保护区）；H. casacolumna（菲亚纳兰楚阿省，安德林吉特拉国家公园）；H. compacta（塔那那利佛省，安卡拉特拉区，曼贾卡通波保护区）；H. contracolorata（安齐拉纳纳省，法国山）；H. epipleurata（安齐拉纳纳省，比纳拉森林）；H. furcula（图利亚拉省，多凡堡以北40公里处，马纳戈特里）；H. gereckei（塔那那利佛省，安卡拉特拉区，曼贾卡通波保护区）；H. goldschmidti（塔那那利佛省，安佐罗贝区，拉沃安德里纳）；H. inseriata（塔那那利佛省，安佐罗贝区，拉沃安德里纳）；H. jubata（安齐拉纳纳省，萨瓦区，马罗杰伊国家公园）；H. levifurcata（菲亚纳兰楚阿省，纳马罗纳河，拉努马法纳西南7公里处）；H. lubrica（塔那那利佛省，安布希坦泰利特别保护区）；H. mahavavona（菲亚纳兰楚阿省，伊奥尼拉希，马哈瓦沃纳）；H. manjakatompo（塔那那利佛省，安卡拉特拉区，曼贾卡通波保护区）；H. marojejy（安齐拉纳纳省，马罗杰伊国家公园）；H. multiarcuata（菲亚纳兰楚阿省，拉努马法纳）；H. oscillata（图阿马西纳省，阿拉奥特拉-曼古罗区，安达西贝-曼塔迪亚国家公园）；H. parvispinosa（图阿马西纳省，安达西贝国家公园）；H. pentarubra（安齐拉纳纳省，安布雷山）；H. quatriloba（图利亚拉省，安多阿赫拉国家公园，齐梅拉希）；H. ranomafana（菲亚纳兰楚阿省，拉努马法纳）；H. ravoandrina（塔那那利佛省，安佐罗贝区，拉沃安德里纳）；H. rubrifurcata（安齐拉纳纳省，萨瓦区，马罗杰伊国家公园）；H. sculponea（安齐拉纳纳省，贝芬戈特拉（西南偏西9.2公里处），安贾纳哈里贝-南国家保护区）；H. simplicata（安齐拉纳纳省，安布雷山）；H. tibiodentipes（菲亚纳兰楚阿省，安德林吉特拉国家公园）；H. triaequalis（菲亚纳兰楚阿省，拉诺希拉）；H. tripartita（菲亚纳兰楚阿省，拉诺梅纳）；H. upsilonica（图阿马西纳省，扎哈梅纳国家公园）。Hydraena (Hydraenopsis)属的新物种：H. andranomena（图利亚拉省，安德拉诺梅纳）；H. arta（安齐拉纳纳省，马罗杰伊国家公园）；H. bucollis（图阿马西纳省，塔马塔夫，安德拉诺贝野外站）；H. clavulata（菲亚纳兰楚阿省，拉努马法纳）；H. contorta（塔那那利佛省，安佐罗贝森林保护区）；H. dilutipoides（马哈赞加省，齐姆比拉哈石林国家公园）；H. divisa（安齐拉纳纳省，安察巴，加洛科山）；H. elementaria（塔那那利佛省，塔马塔夫，沿海泻湖）；H. fulgidicollis（塔那那利佛省，津巴扎扎公园）；H. longiloba（菲亚纳兰楚阿省，马迪奥拉诺）；H. nanula（安齐拉纳纳省，安卡拉纳，安波西泰洛）；H. orchisa（图阿马西纳省，阿拉奥特拉-曼古罗区，安达西贝-曼塔迪亚国家公园）；H. pilobova（安齐拉纳纳省，萨瓦区，马罗杰伊国家公园）；H. pilotumida（菲亚纳兰楚阿省，拉努马法纳以西7公里处）；H. ranarilalatiani（图阿马西纳省，阿拉奥特拉-曼古罗区：阿纳拉马佐阿特拉特别保护区）；H. randriamihajai（安齐拉纳纳省，迪耶纳区：安布雷山国家公园）；H. renalisa（安齐拉纳纳省，桑巴瓦区：马罗杰伊国家公园）；H. sinuatipes（安齐拉纳纳省，安卡拉纳）；H. torquata（菲亚纳兰楚阿省，安德林吉特拉国家公园）。Limnebius属
