鋸針蟻屬()又称大齿猛蚁属,隸屬蟻科針蟻亞科,棲息於熱帶和亞熱帶,為肉食性。
鋸針蟻屬具有觸發式大顎 (trap-jaw),大顎能以極快的速度關上,以捕捉獵物或是透過反作用力彈飛自己躲避敵人。
總覽
鋸針蟻屬英文俗名trap-jaw ants ,鋸針蟻屬有一對發達的大顎,打開的角度可達180度。大顎可以透過內部的結構固定在打開的姿勢,大顎的內部生有一對用來感知的板機毛 (trigger-hair),當獵物觸碰到板機毛 (trigger-hair) 時大顎便會快速關上,大顎強而有力,且運動速度極快,鋸針蟻屬的英文俗名便是由此而來,大顎命中獵物時會殺死或使獵物殘廢。如果大顎沒有命中目標,鋸針蟻屬可以重複地固定大顎、擊發大顎,除此之外,鋸針蟻屬也可以像其他螞蟻一樣正常開闔大顎。鋸針蟻屬也會利用大顎來擊飛敵人,或是彈飛自己以躲避敵人。
鋸針蟻屬的幼蟲外形特殊,其身體上生有長長的肉脊,且其背部生有黏著墊,可以用來黏在蟻巢的牆壁上。幼蟲為肉食性,幼蟲會蛻皮三次。
大顎運動的速度
鋸針蟻屬大顎運動的速度是動物界中第二快的。有研究指出 Odontomachus bauri 大顎運動的速度介於時速 126 ~ 230 公里。大顎關上的時間平均為 130 微秒。加速度可達 1 000 000 m/s²。
擬態
Enoplomischus 屬的跳蛛會擬態成鋸針蟻屬。
分布
鋸針蟻屬分布於中南美洲、亞洲、澳洲與非洲。有研究指出在美國「Odontomachus haematodus 1956年在阿拉巴馬州被記錄到,但近期研究者指出該物種已沿著墨西哥灣散播,最遠至佛羅里達州的彭薩科拉。」Magdalena Sorger則指出,「在過去,Odontomachus ruginodis 的分布範圍被認為侷限在奧蘭多地區,而近期有一筆 O. ruginodis 的紀錄出現在奧蘭多北邊超過100英里處,位於佛羅里達州的蓋恩斯維爾。」而 Odontomachus relictus 則只在佛羅里達中部發現,棲息於長有灌木叢的沙脊地形中。
物種
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共73個現生物種,3個化石物種
- Odontomachus aciculatus F. Smith, 1863
- 近缘大齿猛蚁 Odontomachus affinis Guerin-Meneville, 1844
*Odontomachus alius Sorger & Zettel, 2011
*Odontomachus allolabis Kempf, 1974
*Odontomachus angulatus Mayr, 1866
*Odontomachus animosus Smith, 1860
*Odontomachus assiniensis Emery, 1892
*Odontomachus banksi Forel, 1910
*Odontomachus bauri Emery, 1892
*Odontomachus biolleyi Forel, 1908
*Odontomachus biumbonatus Brown, 1976
*Odontomachus bradleyi Brown, 1976
*Odontomachus brunneus (Patton, 1894)
*Odontomachus caelatus Brown, 1976
*Odontomachus cephalotes Smith, 1863 (Indonesia, Australia, etc.)
- 螯形大齿猛蚁 Odontomachus chelifer (Latreille, 1802) 世界体型第二大
环纹大齿猛蚁 Odontomachus circulus* Wang, 1993
*Odontomachus clarus Roger, 1861
*Odontomachus coquereli Roger, 1861
*Odontomachus cornutus Stitz, 1933
*Odontomachus desertorum Wheeler, 1915
*Odontomachus erythrocephalus Emery, 1890
弗洛勒斯大齿猛蚁 Odontomachus floresensis* Brown, 1976 (Indonesia: Flores)
光亮大齿猛蚁Odontomachus fulgidus* Wang, 1993
句芒大齿猛蚁 Odontomachus goumang* 2025 世界体型第五大;亚洲体型第二大;中国体型第一大
粒纹大齿猛蚁 Odontomachus granatus* Wang, 1993
血色大齿猛蚁 Odontomachus haematodus* (Linnaeus, 1758) (South America, introduced to Australia prior to 1876); type species
*Odontomachus hastatus (Fabricius, 1804)
*Odontomachus imperator Emery, 1887
*Odontomachus infandus Smith, 1858
*Odontomachus insularis Guérin-Méneville, 1844
*Odontomachus kuroiwae (Matsumura, 1912)
*Odontomachus laticeps Roger, 1861
*Odontomachus latidens Mayr, 1867
*Odontomachus latissimus Viehmeyer, 1914
*Odontomachus malignus Smith, 1859
梅氏大齿猛蚁 Odontomachus mayi* Mann, 1912
*Odontomachus meinerti Forel, 1905
*Odontomachus minangkabau Satria, Kurushima, Herwina, Yamane & Eguchi, 2015
*Odontomachus montanus Stitz, 1925
- 山大齿猛蚁 Odontomachus monticola Emery, 1892 高山锯针蚁
恐惧大齿猛蚁 Odontomachus mormo* Brown, 1976 世界体型第一大
黑头大齿猛蚁 Odontomachus nigriceps* Smith, 1860
*Odontomachus opaciventris Forel, 1899
*Odontomachus opaculus Viehmeyer, 1912
†Odontomachus paleomyagra* Wappler, Dlussky, Engel, Prokop & Knor, 2014
*Odontomachus panamensis Forel, 1899
*Odontomachus papuanus Emery, 1887
*Odontomachus pararixosus Terayama & Ito, 2014
*Odontomachus peruanus Stitz, 1933
*Odontomachus philippinus Emery, 1893
*Odontomachus procerus Emery, 1893
†Odontomachus pseudobauri* (De Andrade, 1994)
*Odontomachus relictus Deyrup & Cover, 2004
争吵大齿猛蚁Odontomachus rixosus* Smith, 1857
*Odontomachus ruficeps Smith, 1858 (Australia)
*Odontomachus rufithorax Emery, 1911
*Odontomachus ruginodis Smith, 1937
*Odontomachus saevissimus Smith, 1858
*Odontomachus scalptus Brown, 1978
*Odontomachus schoedli Sorger & Zettel, 2011
*Odontomachus scifictus Sorger & Zettel, 2011
西氏大齿猛蚁 Odontomachus silvestrii* W.M. Wheeler, 1927
- 相似大齿猛蚁 Odontomachus simillimus F. Smith, 1858 (Australia, Fiji, etc.)
†Odontomachus spinifer* De Andrade, 1994
*Odontomachus spissus Kempf, 1962
*Odontomachus sumbensis Brown, 1976
直齿大齿猛蚁 Odontomachus tensus* Wang, 1993
*Odontomachus testaceus Emery, 1897
*Odontomachus troglodytes Santschi, 1914 (Africa, Madagascar, Inner Seychelles)
- Odontomachus turneri Forel, 1900 (Australia)
*Odontomachus tyrannicus Smith, 1859
西藏大齿猛蚁 Odontomachus xizangensis* Wang, 1993
*Odontomachus yucatecus Brown, 1976
參考資料
外部連結
- Mississippi Entomology Museum: [http://mississippientomologicalmuseum.org.msstate.edu/Researchtaxapages/Formicidaepages/genericpages/Odontomachus.haematodus.htm Pictures of worker and male O. haematodus]
- [http://www.youtube.com/watch?v=G89IcZ3PluE Slow motion video of the ants in action]
- Mississippi Entomology Museum: [http://www.msstate.edu/org/mississippientmuseum/Researchtaxapages/Formicidaepages/genericpages/Odontomachus.haematodus.htm Pictures of worker and male O. haematodus]
- [https://web.archive.org/web/20080103044238/http://www.newscientist.com/article.ns?id=dn9800&feedId=online-news_rss20 Ant's super-fast bite is a built-in 'ejector seat']
- [http://news.bbc.co.uk/1/hi/sci/tech/5272094.stm Ferocious ants bite like a bullet] - BBC News, 21 August 2006. Elli Leadbeater. Retrieved 22 August 2006
- [http://news.scotsman.com/scitech.cfm?id=1231332006 Man-trap jaws make ant fastest predator] - Scotsman, 22 August 2006. John Von Radowitz. Retrieved 22 August 2006
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