Bassini-Silva Ricardo, Huang-Bastos Matheus, Welbourn Cal, Ochoa Ron, Barros-Battesti Darci Moraes, Jacinavicius Fernando de Castro
Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia da, Universidade de São Paulo-FMVZ-USP, Prof. Dr. Orlando Marques de Paiva Avenue, 87, São Paulo, SP, 05508270, Brazil.
Laboratório de Coleções Zoológicas, Instituto Butantan, São Paulo, SP, Brazil.
Acta Parasitol. 2021 Dec;66(4):1448-1457. doi: 10.1007/s11686-021-00420-5. Epub 2021 May 27.
Euschoengastia Ewing is a chigger genus in need of revision as it historically has combined species solely on the presence of expanded prodorsal trichobothria. The objective of the present study is to describe a new genus to reallocate two North American Euschoengastia species, to start an organization into this genus.
In this study, we provide drawings, measurements and microscopy images on a Microscope Zeiss for the two redescribed species.
After examining the types of the species Euschoengastia latchmani Brennan and Yunker and Euschoengastia obscura Wrenn and Loomis, we realized that it was necessary to create the new genus to relocate these two species, mainly based on the following characters: (1) the number of prongs on the odontus; and (2) ornamentation of the prodorsal sclerite.
Goffacarus latchmani n. comb. and Goffacarus obscura n. comb. are redescribed here and to reallocate these two species the genus, Goffacarus n. gen. is proposed.
尤氏恙螨属（Euschoengastia）需要修订，因为其历史上仅根据背板扩展的毛窝来合并物种。本研究的目的是描述一个新属，以重新划分两种北美尤氏恙螨属物种，从而开始对该属进行整理。
在本研究中，我们提供了蔡司显微镜下两种重新描述物种的绘图、测量数据和显微图像。
在检查了尤氏恙螨属的拉特奇曼尼种（Euschoengastia latchmani Brennan and Yunker）和尤氏恙螨属的暗恙螨种（Euschoengastia obscura Wrenn and Loomis）的模式标本后，我们意识到有必要创建一个新属来重新划分这两个物种，主要基于以下特征：（1）齿体上的叉数；（2）背板硬化体的纹饰。
此处重新描述了拉特奇曼尼戈法恙螨（Goffacarus latchmani n. comb.）和暗戈法恙螨（Goffacarus obscura n. comb.），并为重新划分这两个物种提出了戈法恙螨属（Goffacarus n. gen.）。
