A closer look reveals the first records of Campsurus Eaton, 1868 (Ephemeroptera: Polymitarcyidae: Campsurinae) from Maranhão state, Northeast Brazil, including a new species.

IF 1.1 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Anais da Academia Brasileira de Ciencias Pub Date : 2025-03-24 eCollection Date: 2025-01-01 DOI:10.1590/0001-3765202520240967

Jaime DE L Gama Neto, Mahedy A B Passos

引用次数: 0

Abstract

The male of Campsurus barreirinhas sp. nov. is described and illustrated, representing the first records of Campsurus from Maranhão State, Northeast Brazil region. It is nearly related to C. litaninensis, both showing a unique genitalia, with the sternum IX extremely projected medially, pedestals bases distinctly separated in the middle, and pedestal rotated. The new species differentiates from C. litaninensis because the projection of IX sternum is rounded distally and the penes are stouter. This new species was collected along with Campsurus essequibo and Campsurus lucidus, representing the first records of these species in the Northeast Brazilian region.

查看原文本刊更多论文

近距离观察发现巴西东北部maranh州最早记录的Campsurus Eaton， 1868（蜉蝣目：多丝蝇科：Campsurus Eaton），包括一新种。

对巴西东北部maranh州Campsurus barreirinhas sp. 11 .的雄性进行了描述和图解，这是巴西东北部地区maranh州Campsurus的首次记录。它与C. litaninensis的亲缘关系很近，两者都有独特的生殖器，胸骨IX特别向中央突出，底座底座在中间明显分开，底座旋转。该新种与C. litaninensis的区别在于其IX胸骨的突起在远端是圆形的，而penes较粗。该新种与巴西东北地区的甘树（Campsurus essequibo）和lucidus一起被采集，代表了这些物种在巴西东北部地区的首次记录。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Anais da Academia Brasileira de Ciencias 综合性期刊-综合性期刊

CiteScore

2.20

自引率

0.00%

发文量

347

审稿时长

1 months

期刊介绍： The Brazilian Academy of Sciences (BAS) publishes its journal, Annals of the Brazilian Academy of Sciences (AABC, in its Brazilianportuguese acronym ), every 3 months, being the oldest journal in Brazil with conkinuous distribukion, daking back to 1929. This scienkihic journal aims to publish the advances in scienkihic research from both Brazilian and foreigner scienkists, who work in the main research centers in the whole world, always looking for excellence. Essenkially a mulkidisciplinary journal, the AABC cover, with both reviews and original researches, the diverse areas represented in the Academy, such as Biology, Physics, Biomedical Sciences, Chemistry, Agrarian Sciences, Engineering, Mathemakics, Social, Health and Earth Sciences.