TABLE 1. Summary of some diagnostic characters of Dimeragrion species. Characters of D. clavijoi, D. mesembrinum, D. percubitale, D. secundum and D. unturanense were taken from their original description (De Marmels 1999; De Marmels 1989; Calvert 1913; Needham & Tate 1933; De Marmels 1992). NA: Character not available or not described. D. baniwaD. clavijoi De Marmels, 1999D. mesembrinum De Marmels, 1989D. percubitale Calvert, 1913D. secundum Needham, 1933D. unturanense De Marmels, 1992DistributionMountain/regionS„o Gabriel da CachoeiraCerro YutajéCerro de la NeblinaTumatumari/Cerro de la Neblina/Auyantepuí/Ptarí-tepuíMonte DuidaSierraUnturán/TamacuaríElevation (m a.s.l.)801750180080/180/1100/18001000 -1200950 / 1800ColorationVertex and rear of headBlack with purple relfectionsblackblackblack with metallic green reflectionsblackblacklabrum and anteclipeuswith a white transverse bandwith a white transverse bandYellow with black marginDark metallic violetNAwith a white transverse bandProtoraxBlack dorsallyBrassy black dorsallyBlack dorsallyBlack with green metallic reflectionYellowish, black barredBrassy blackPterotoraxdark brown to black, with blue metallic reflections.mostly black with metallic green reflectionsBlack, with metallic green and coopery reflectionsMetallic green, 3/4 with pruinisenceGreenish blackdark brown to black, with blue or green metallic reflections.WingsStigma + 2+4blackDark-brownDark-brownDark-brownNADark-brownPx FW2324-2524NA2523 - 25Px HW2221-2222NA2419-20IR2 originAt first postnodalAt subnodusAt first postnodalAt first postnodalAt subnodusAt first postnodalRP3+4 originat subnodusbefore subnodusat subnodusat subnodusbefore subnodusat subnoduscubito-anal crossveinsNo accessory crossveinsNo accessory crossveinsNo accessory crossveins2 to 4No accessory crossveins2AppendageslengthTwice than S10Twice than S10NALonger than S10Distinctly longer than inferiorsSlightly shorter than S10Measurementsabdomen males22.942.337.526.5-344430.5abdomen females1831.2 -35.23124.5 - 25.5NA25HW males19.432.528.521.5-253135.2HW females1628.5 – 29.525.520 -22.5NANA

Published as part of Mendoza-Penagos, Cristian Camilo, Kenzy, Myckey, Gonçalves, Silva & Vilela, Diogo Silva, 2023, A new species of Dimeragrion Calvert, 1913 (Odonata: Zygoptera: Heteragrionidae) from Northwestern Brazil, pp. 416 in Zootaxa 5318 (3) on page 416, DOI: 10.11646/zootaxa.5318.3.6, http://zenodo.org/record/8166990