Small Squaregilled Mayflies

These drowned mayflies was found in a pond in a park in middle Ebro valley, Saragossa, NE Spain.Species recorded from the same province are Caenis horaria, Caenis luctuosa and Caenis pusilla. I'm unable to distinguish them. Somebody help me, please?

Summary[edit] Description: English: Caenis spec. (Caenoidea sp.), Elst (Gld), the NetherlandsNederlands: Caenis spec. (Slijkhaft onbekend), Elst (Gld), Nederland. Date: 17 May 2015, 12:00:00. Source: Own work. Author: Bj.schoenmakers. Camera location51° 56′ 34.88″ N, 5° 50′ 53.43″ E View all coordinates using: OpenStreetMap - Google Earth 51.943021; 5.848175.

Summary[edit] Description: English: Caenis horaria (Caenoidea sp.), Elst (Gld), the NetherlandsNederlands: Caenis horaria (Slijkhaft), Elst (Gld), Nederland. Date: 1 June 2015, 12:00:00. Source: Own work. Author: Bj.schoenmakers. Other versions: . Camera location51° 56′ 35.16″ N, 5° 50′ 54.18″ E View all coordinates using: OpenStreetMap 51.943101; 5.848382.

..

These drowned mayflies was found in a pond in a park in middle Ebro valley, Saragossa, NE Spain.Species recorded from the same province are Caenis horaria, Caenis luctuosa and Caenis pusilla. I'm unable to distinguish them. Somebody help me, please?

Summary[edit] Description: English: O: Ephemeroptera F: Caenidae G: Caenis. Date: 31 January 2012. Source: Own work. Author: Erin Hayes-Pontius. From the Vermont EPSCoR Streams Project Licensing[edit] : This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. :. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one. https://creativecommons.org/licenses/by-sa/3.0 CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue.

Summary[edit] Description: English: Caenis horaria (Caenoidea sp.), Elst (Gld), the NetherlandsNederlands: Caenis horaria (Slijkhaft), Elst (Gld), Nederland. Date: 1 June 2015, 12:00:00. Source: Own work. Author: Bj.schoenmakers. Other versions: . Camera location51° 56′ 35.16″ N, 5° 50′ 54.18″ E View all coordinates using: OpenStreetMap 51.943101; 5.848382.

Dorsal..

Dorsal..

Dorsal..

Lateral..

Dorsal..

Lateral..

Lateral..

Dorsal..

Dorsal..

Lateral..

Dorsal..

Lateral. Catalog no.: 10BBEPT-0120. Specimen ID: 1742324. Field no.: L#PC2010PA-083. Taxon rep.: Caenis. Image quality: 5. Aspect ratio: 1.333.

Dorsal. Specimen ID: 2159970. Field no.: L#11BIOBUS-1066. Taxon rep.: Sparbarus. Image quality: 1. Aspect ratio: 1.333.

Dorsal..

Lateral..

Lateral..

"Longitude (deg): -0.7. Latitude (deg): 51.4. Longitude (deg/min): 0° 50' W. Latitude (deg/min): 51° 30' N. Vice county name: Berks. Vice county no.: 22. Country: England. Stage: Female imago. Identified by: Malcolm Storey. Comment: ""Female, at MV"". Category: macro-photograph. Image scaling: enlarged. Photographic equipment used: Canon EOS400D dSLR with Tamron SP AF Di 90mm Macro 1:1 lens. "