Caenis chamie Alba-Tercedor & Mosquera, 1999

Nascimento, Stênio R. S., Cruz, Paulo V., Lima, Lucas R. C., Lima, Cláudia R. T., Hamada, Neusa & Ale-Rocha, Rosaly, 2023, New species and records of Caenidae Newman, 1853 (Insecta: Ephemeroptera) from Rondônia State, Northern Brazil, Zootaxa 5339 (3), pp. 237-255 : 250

publication ID	https://doi.org/10.11646/zootaxa.5339.3.2
publication LSID	lsid:zoobank.org:pub:41C9373E-9B6B-4909-BEE2-60E2636B5889
DOI	https://doi.org/10.5281/zenodo.8309264
persistent identifier	https://treatment.plazi.org/id/03AD87F3-FFFD-FFD4-3391-FB06418B7618
treatment provided by	Plazi (2023-09-01 13:44:11, last updated 2024-11-27 09:44:49)
scientific name	Caenis chamie Alba-Tercedor & Mosquera, 1999
status

Treatment

Caenis chamie Alba-Tercedor & Mosquera, 1999 View in CoL ( Figs. 10E–F View FIGURE 10 )

Caenis chamie Alba-Tercedor & Mosquera, 1999: 61 View in CoL ; Lima et al. 2015a: 3; Lima & Boldrini 2016: 3; Nascimento et al. 2022: 117 View Cited Treatment .

Distribution. Colombia. Brazil: states of Goiás, Pernambuco, Roraima, Piauí. New record: Rondônia State.

Material examined. 10 ♁ imagos (light trap), Brazil, Rondônia State, Rolim de Moura municipality, Waterfall , road 192 south, S11°50’34.8”, W61°42’50.3”, 21.viii.2022, Nascimento, S. R GoogleMaps .S., Cruz, P. V., Lima , C. R . T . cols. ( INPA).

Comments. Caenis chamie can be characterized by the straight hind margin of penis, genital sclerites sclerotized and discernible, and styliger plate projected, covering the penis (adapted from Alba-Tercedor & Mosquera 1999). Specimens from Rondônia were compared with photographs of the holotype of male imago. Small variations in the shape of the forceps were observed, with some specimens presenting forceps longer and slender, with subapical constriction. Variations on the forceps were also previously commented on by Alba-Tercedor & Mosquera (1999). The most noticeable variation is the lateral sclerite, with evident sclerotization, tape format and broad base; this structure is barely visible in the holotype of C. chamie .

References

Alba-Tercedor, J. & Mosquera, S. (1999) Caenis chamie, a new species from Colombia (Ephemeroptera: Caenidae). Pan- Pacific Entomologist, 75 (2), 61 - 67.

Lima, L. R. C., Salles, F. F. & Pinheiro, S. (2015 a) New records of mayflies (Ephemeroptera: Insecta) from Pernambuco state, northeastern Brazil. Check List, 11, 1 - 7. https: // doi. org / 10.15560 / 11.3.1652

Lima, L. R. C. & Boldrini, R. (2016) First records of small squaregilled mayflies (Ephemeroptera, Caenidae) from the state of Roraima, Northern Brazil. Check List, 12 (4), 1 - 5. https: // doi. org / 10.15560 / 12.4.1919

Nascimento, S. R. S., Rodrigues, J. A. O., Ale-Rocha, R. & Lima, L. R. C. (2022) New species and records of Caenidae Newman, 1853 (Insecta: Ephemeroptera) from Northeastern Brazil. Zootaxa, 5133 (1), 110 - 122. https: // doi. org / 10.11646 / zootaxa. 5133.1.5

Figures

FIGURE 10. Male imagos, body dorsal view and genitalia ventral view: A–B, Brasilocaenis elidioi; C–D, B. irmleri; E–F, Caenis chamie; G–H, C. fittkaui; I–J Latineosus sigillatus. (Scale: Figs. 10A, C, E, G, I = 1 mm; Figs. 10B, D, F, H, J = 0.1 mm).

Abbreviations

R	Departamento de Geologia, Universidad de Chile
V	Royal British Columbia Museum - Herbarium
T	Tavera, Department of Geology and Geophysics
INPA	Instituto Nacional de Pesquisas da Amazonia