Morphology and Putative Ecology of Eocene Ant Agroecomyrmex duisburgi (Hymenoptera: Formicidae: Agroecomyrmecinae)

IF 1.3 3区 农林科学 Q2 ENTOMOLOGY Annales Zoologici Pub Date : 2022-06-30 DOI:10.3161/00034541ANZ2022.72.2.009
A. Radchenko, M. Khomych
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Abstract

Abstract. Agroecomyrmecinae is a poorly-known subfamily of ants that includes just two extant genera and species, Tatuidris tatusia Brown et Kempf, 1968, a leaf-litter dweller from the Neotropics, and Ankylomyrma coronacantha Bolton, 1973, an arboreal inhabitant from West Africa. Two Agroecomyrmecinae genera have been described from Eocene fossils: Agroecomyrmex Wheeler, 1910 found in European amber (Baltic and Bitterfeld), and Eulithomyrmex Carpenter, 1935 found in North American shale (Florissant). There are published records of just seven specimens of Agroecomyrmex duisburgi (Mayr, 1868), the sole member of its genus. We found four additional A. duisburgi specimens, three from Baltic amber and one from Rovno (Ukraine) amber of similar age (Priabonian stage, 37.8–33.9 Ma). This increases number of known ant subfamilies in Rovno amber to 10, and indicates that Agroecomyrmecinae were distributed in the late Eocene on both the northern and southern coasts of the Paratethys Sea. Based on morphological features and the rarity of fossil remains, we suggest that Agroecomyrmex and Eulithomyrmex were most likely neither litter-dwelling nor arboreal, but were epigean species, living on the soil surface.
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始新世农蚁的形态与生态学推测(膜翅目:蚁科:农蚁科)
摘要agroeconomyrmecinae是一个鲜为人知的蚂蚁亚科,仅包括现存的两个属和种:Tatuidris tatusia Brown et Kempf, 1968年,一种新热带地区的落叶栖息动物;Ankylomyrma coronacantha Bolton, 1973年,一种西非的树栖动物。从始新世化石中描述了两个Agroecomyrmecinae属:Agroecomyrmex Wheeler, 1910年发现于欧洲琥珀(波罗的海和比特菲尔德),Eulithomyrmex Carpenter, 1935年发现于北美页岩(弗洛里桑特)。据已发表的记录显示,该属的唯一成员agroeconomyrmex duisburgi (Mayr, 1868)只有7个标本。另外还发现了4个年龄相近的A. duisburgi标本,其中3个来自波罗的海琥珀,1个来自乌克兰Rovno琥珀(Priabonian stage, 37.8-33.9 Ma)。这将Rovno琥珀中已知的蚂蚁亚科数量增加到10个,表明agroeconomyrmecinae在始新世晚期分布在Paratethys海的南北海岸。基于形态特征和化石遗迹的稀有性,我们认为agroeconomyrmex和Eulithomyrmex很可能既不是生活在凋落物中,也不是生活在树上,而是生活在土壤表面的表生物种。
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来源期刊
Annales Zoologici
Annales Zoologici 生物-动物学
CiteScore
1.60
自引率
27.30%
发文量
34
审稿时长
>12 weeks
期刊介绍: Annales Zoologici is published quarterly by the Museum and Institute of Zoology at the Polish Academy of Sciences. It is an international journal devoted to all aspects of systematic entomology (in a broad sense).
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