巴西米纳斯吉拉斯州的 Gaucha Mello-Leito 属一新种（Solifugae，Mummuciidae）。

A new species of the genus Gaucha Mello-Leito, 1924 from Minas Gerais, Brazil (Solifugae, Mummuciidae).

机构信息

Centro de Estudos em Biologia Subterrnea, Setor de Zoologia Geral, Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG. CEP 37200-000, Brazil.

Universidade Federal do Piau, Campus Amlcar Ferreira Sobral, BR 343, KM 3.5, Bairro Melado, s/no. CEP 64808-660, Floriano, PI, Brazil. .

出版信息

Zootaxa. 2021 Nov 5;5061(3):559-572. doi: 10.11646/zootaxa.5061.3.9.

DOI:10.11646/zootaxa.5061.3.9

PMID:34810608

Abstract

A new sun-spider species of the ibirapemussu species-group of the genus Gaucha is described based on males and a female collected in Southeastern Brazil. The newly described species can be readily distinguished from its congeners by the reduction of the cheliceral fixed finger, distal tooth (FD), closely positioned and smaller than the medial tooth (FM); the presence of cheliceral fixed finger profondal subproximal (PFSP) and retrofondal submedial (RFSM) teeth; and by the cheliceral movable finger, medial tooth (MM) well developed, larger than submedial tooth (MSM) and smaller than proximal tooth (MP). This is the thirteenth described species in the genus Gaucha, all known from South America.

摘要

描述了一种基于雄性和雌性在巴西南部采集的新的伊比拉佩斯苏斯属伊比拉佩斯物种组的太阳蜘蛛物种。新描述的物种可以通过螯肢固定指的退化、靠近且小于中齿（FM）的远端齿（FD）、螯肢固定指的深近基（PFSP）和深后亚基（RFSM）齿的存在、以及螯肢可动指的中齿（MM）发达、大于亚基齿（MSM）且小于基齿（MP），与近缘种明显区分开来。这是南美洲已知的第十三种伊比拉佩斯属物种。