One of the largest species in its genus, Odontomachus davidsoni Hoenle, Lattke & Donoso, sp. nov. is described from workers and queens collected at lowland forests in the Chocó-Darién bioregion in coastal Ecuador. The workers are characterized by their uniform red coloration, their large size (16–18 mm body length), and their frontal head striation that reaches the occipital margin. DNA barcodes (COI) and high resolution 2D images of the type material are provided, as well as an updated key for the Neotropical species of Odontomachus. In addition, a three-dimensional digital model of the worker holotype and a paratype queen scanned with DISC3D based on photogrammetry is presented, for the first time in a species description. Findings of large and conspicuous new species are uncommon around the world and suggest that these Ecuadorian rainforests may conceal many more natural treasures that deserve conservation.

中文翻译：

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大卫氏齿牙菌 十一月 （Hymenoptera，Formicidae），一种来自厄瓜多尔的新型显眼活体蚂蚁。

该属中最大的物种之一，Odontomachus davidsoni Hoenle，Lattke和Donoso，sp。十一月 描述者是从厄瓜多尔沿海Chocó-Darién生物区低地森林收集的工人和王后那里。工人的特征是均匀的红色，大的体形（体长16–18 mm）以及到达枕骨边缘的额头条纹。提供了DNA条形码（COI）和该类型材料的高分辨率2D图像，以及Odontomachus的新热带物种的更新密钥。此外，首次在物种描述中提出了基于摄影测量的用DISC3D扫描的工人全型和副型皇后的三维数字模型。