Ma Zhenxing, Zhou Changfa
College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
Insects. 2021 Aug 12;12(8):723. doi: 10.3390/insects12080723.
The newly collected imaginal materials of the species Zhou and Zheng, 2001 from Southwestern China, which is linking the other genera of the family Neoephemeridae, are described in detail. Nymphs are also photographed for the first time. The morphology of this species shows some characters of the other genera in Neoephemeridae and several autapomorphies. However, most characters can be seen as plesiomorphies of the family. Specifically, the dorsal-oriented fimbriate gills, projected frons and slim labial palpi in nymphs plus large reddishly pigmented wings, many crossveins, 4-segmented forceps with a relatively long basal segment, fused penes and unforked anal vein show that this species is closer to the taxon Fossoriae rather than to the previously considered Potamanthidae. To reflect its primitive position, a new genus, Zhou gen. n., is established for this species, comb. n. Its eggs and observed biology are also described.
详细描述了2001年采自中国西南部的周氏新蜉属（Zhou and Zheng, 2001）物种的新采集的成虫材料，该物种与新蜉科的其他属相关联。还首次拍摄了若虫照片。该物种的形态显示出新蜉科其他属的一些特征以及几个独征。然而，大多数特征可视为该科的祖征。具体而言，若虫背向的缨鳃、突出的额以及细长的唇须，加上红色素沉着的大翅、许多横脉、基部节段相对较长的4节尾铗、愈合的阳茎和不分叉的臀脉，表明该物种更接近掘足蜉类群，而非先前认为的短丝蜉科。为反映其原始地位，为此物种建立了一个新属，周氏新属（Zhou gen. n.），新组合（comb. n.）。还描述了其卵及观察到的生物学特性。
