Table 1 in First fossil record of the mayfly family Vietnamellidae (Insecta, Ephemeroptera) from Burmese Amber confirms its Oriental origin and gives new insights into its evolution

Table 1. Measurements of fossil representatives of the genus Burmella gen. nov. Adult charactersBurmella paucivenosa sp. nov. [SMNS, BU-179, male imago] (mm)Burmella clypeata sp. nov. [SMNS, BU-321, female imago] (mm)Length of body5.757.00Length of right foreleg2.51*1.14*Length of femur0.830.42Length of tibia1.680.72*Length of tarsus--Segment I--Segment II--Segment III--Segment IV--Segment V--Length of left foreleg2.52*1.64*Length of femur0.850.46Length of tibia1.671.18*Length of tarsus--Segment I--Segment II--Segment III--Segment IV--Segment V--Length of right middle leg2.78-Length of femur1.45-Length of tibia1.03-Length of tarsus0.30-Segment I0.08-Segment II0.10-Segment III0.10-Segment IV0.11-Segment V0.14-Length of left middle leg2.70*2.36Length of femur1.200.60Length of tibia1.021.34Length of tarsus0.48*0.42Segment I-0.08Segment II-0.07Segment III-0.07Segment IV-0.08Segment V-0.12Length of right hind leg2.471.71Length of femur1.020.71Length of tibia0.930.56Length of tarsus0.520.44Segment I0.070.09Segment II0.090.08Segment III0.100.07Segment IV0.120.08Segment V0.140.12Length of left hind leg2.072.60Length of femur1.000.98Length of tibia0.661.06Length of tarsus0.410.56Segment I0.050.11Segment II0.070.11Segment III0.070.10Segment IV0.100.10Segment V0.110.14Length of right forewing4.641.80Length of left forewing4.685.12Length of right hind wing0.660.45Length of left hind wing0.64-Hind/Fore wings length ratio0.140.08Length of cerci [right/left]2.35*/1.24*8.12/- * preserved part.