Table 1 Measurements of the holotype of Nebesna sotnia gen. & sp. nov. (male imago; NMNH NASU, catalogue number IKOFZ-Ib 8921, Kyiv, Ukraine).

From: Nebesna sotnia gen. & sp. nov. from Baltic amber supports a Pangean distribution of the amphinotic family Ameletopsidae (Ephemeroptera)

Characters

mm

Characters

mm

Length of body

7.28*

Length of tibia

0.73*

Length of right foreleg

3.13*

Length of tarsus

Length of femur

1.71

Segment I

Length of tibia

1.31

Segment II

Length of tarsus

0.11*

Segment III

Segment I

0.11*

Segment IV

Segment II

Segment V

Segment III

Length of right hind leg

3.48

Segment IV

Length of femur

1.30

Segment V

Length of tibia

1.15

Length of left foreleg

1.61*

Length of tarsus

1.04

Length of femur

1.61*

Segment I

0.20

Length of tibia

Segment II

0.30

Length of tarsus

Segment III

0.19

Segment I

Segment IV

0.14

Segment II

Segment V

0.20

Segment III

Length of left hind leg

3.58

Segment IV

Length of femur

1.32

Segment V

Length of tibia

1.16

Length of right middle leg

 

Length of tarsus

1.10

Length of femur

1.18

Segment I

0.23

Length of tibia

1.08

Segment II

0.33

Length of tarsus

1.02

Segment III

0.19

Segment I

0.23

Segment IV

0.15

Segment II

0.26

Segment V

0.20

Segment III

0.18

Length of right forewing

7.80

Segment IV

0.16

Length of left forewing

0.68*

Segment V

0.19

Length of right hind wing

2.63

Length of left middle leg

1.92*

Length of left hind wing

1.53*

Length of femur

1.19

Hind/Fore wings length ratio

0.34

  1. *—preserved part.