Records of Ancyronyx species from Mindoro
最新版本 由 ZooKeys 發佈於 2013年8月2日 ZooKeys

Larval and adult stages of Ancyronyx (Insecta: Coleoptera: Elmidae) including new species from Mindoro Island, the Philippines, are listed with detailed notes on their collection sites

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Freitag H (2013) Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) from Mindoro, Philippines, with description of the larvae and two new species using DNA sequences for the assignment of the developmental stages. Zookeys XXXX: YYY-YYY


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Ancyronyx; Spider Water Beetles; Elmidae; distribution; record; new species; larva; Mindoro; Philippines



Hendrik Freitag
Associate Professor
Ateneo de Manila University
Loyola Heights
1101 Quezon City


Hendrik Freitag
Associate Professor
Ateneo de Manila University
Loyola Heights
1101 Quezon City


Hendrik Freitag
Associate Professor
Ateneo de Manila University
Loyola Heights
1101 Quezon City

Island of Mindoro, Philippines

界定座標範圍 緯度南界 經度西界 [12.12, 120.25], 緯度北界 經度東界 [13.53, 121.6]

Larval and adult stages of four species of Ancyronyx

Genus  Ancyronyx (Spider Water Beetles)
起始日期 / 結束日期 1992-11-21 / 2013-04-04


計畫名稱 Survey and Evaluation of Rural Landscape Biodiversity of Roxas, Oriental Mindoro, with Identification and Scientific Description of Taxa New to Science, Identification of Priority Areas for Conservation
經費來源 Commission on Higher Education (Philippines), PHERNet program; Ateneo de Manila University Loyola Schools Scholarly Work Grant
研究區域描述 Main focus: Baroc River Catchment, San Vicente, Roxas, Oriental Mindoro, Philippines
研究設計描述 The Baroc River Catchment Survey of the Ateneo de Manila University focuses on the Key Biodiversity Area “Hinunduang Mt.”, classified as a terrestrial and inland water area of very high biological importance and extremely high critical conservation priority, under high socioeconomic pressure, which is, however, only subjected to moderate conservation efforts and not yet formally protected. Recent project collections and previously collected specimens from Mindoro were included in the study. They are partly from other conservation and research priority areas of high and highest urgency (“Naujan Lake National Park” and “Puerto Galera.”).


Hendrik Freitag

All specimens were collected from submerged substrates by the use of a hand-net or manually gathered from coarse particulate organic matter. Letter codes in parenthesis refer to a particular sampling station and microhabitat of the Baroc River Catchment. Number codes are arbitrary.

研究範圍 The sampling of all study sites within the main area in focus (Baroc River Catchment, Roxas) was replicated for at least four times between 2011 and 2013, covering both, dry and rainy seasons. All other collection sites were surveyed once by different collectors, except for the Tamaraw Falls, Puerto Galera (one replicate).


  1. The material was preserved in 95% ethyl alcohol to allow genetic sequencing. Most material was retrieved during the ongoing Baroc River Catchment Survey. Material collections from the 1990s were examined at the Natural History Museum Vienna, Austria (NMW), the Senckenberg Museum für Tierkunde Dresden, Germany (SMTD), and the Zoological Museum of the University Copenhagen, Denmark (ZMUC).
蒐藏名稱 several
蒐藏編號 see acronym
上層採集品識別碼 several
標本保存方法 Pinned
管理單位 計數 350 +/- 100 specimens (larvae and adults)
  1. Freitag H, Balke M (2011) Larvae and a new species of Ancyronyx Erichson, 1847 (Insecta, Coleoptera, Elmidae) from Palawan, Philippines, using DNA sequences for the assignment of the developmental stages. ZooKeys 136: 47–82.
  2. Freitag H, Jäch MA (2007) The genus Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) in Palawan and Busuanga, (Philippines) with description of six new species. Zootaxa 1590: 37–59.
  3. Freitag H, Pangantihon C (2010) Aquatic Coleoptera and Heteroptera of the Lake Naujan National Park, Mindoro Oriental, the Philippines. Philippine Scientist 47: 126–173.
  4. Jäch MA (1994) A taxonomic review of the Oriental species of the genus Ancyronyx Erichson, 1847 (Coleoptera, Elmidae). Revue suisse de Zoologie 101 (3): 601–622.