New species and records of Caenidae Newman, 1853 (Insecta: Ephemeroptera) from Northeastern Brazil

被引：1
作者：
Nascimento, Stenio R. S. [1 ]
Rodrigues, Jackson A. O. [2 ]
Ale-Rocha, Rosaly [1 ]
Lima, Lucas R. C. [2 ]
机构：
[1] Inst Nacl Pesquisas Amazonia INPA, Lab Diptera, Manaus, Amazonas, Brazil
[2] Univ Estadual Piaui UESPI, Lab Zool, Campus Herois Jenipapo, Piaui, Brazil
来源：
ZOOTAXA | 2022年 / 5133卷 / 01期
关键词：
Pannota; Brasilocaenis irmleri; B; elidioi; Caenis fittkaui; C; chamie; MAYFLIES EPHEMEROPTERA; ESPIRITO-SANTO; PHYLOGENY; STEPHENS; BIOGEOGRAPHY; STATE;
D O I：
10.11646/zootaxa.5133.1.5
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
New distributional records for four species and the description of a new species of Caenis Stephens from Parnaiba River Basin, in a semiarid region of the state of Piaui, Northeastern Brazil are given. Characters and illustrations to distinguish Caenis marataoan sp. nov. from all other species in Caenis are provided. The new species can be distinguished by the following combination of characters: 1) body length of male 1.5???2.0 mm, female 2.5???2.8 mm; 2) base of antennal flagellum not dilated; 3) forceps apically rounded, covered with trichomes and with 2???3 minute spines at apex; 4) styliger plate short with posterior margin convex; 5) penis fused and not laterally projected; 6) eggs oval-shaped; micropyle linear with narrow and long micropylar canal, preceded by an oval sperm guide.
引用
收藏
页码：110 / 122
页数：13
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