TABLE 1. Body measurements of †Ademosynidae. All dimensions given in millimetres.

Species Dolichosyne confragosa
Ponomarenko, 1969
D. rostrata
Ponomarenko, 1969
D. sulcata
Ponomarenko, 1969
Gnathosyne akkolkensis
Ponomarenko, 1969
Ademosyne kirgizica
Ponomarenko, 1969
A. bacca
Ponomarenko, 1969
A. ellyptica
Ponomarenko, 1969
Cephalosyne capitata
Ponomarenko, 1969
Specimen number PIN 2785-2675 PIN 2070-1551 PIN 2555/1735 PIN 2240-274 PIN 2496/7 PIN 2096/1369 PIN 2240/310 PIN 2240/224 PIN 2240/302
Body                  
length 10 10,4 5,6 6,7 4,5 6,2 3,8 4,2 5,4
width 3,5 3,8 1,6 1,8 1,7 2,6 3 2,1 2,5
Elytron                  
length 7,8 7,1 3,1 4,8 2,9 5,2 ~ ~ 3,8
width 1,8 2,1 0,85 0,9 ~ 1,2 ~ ~ 1
Head                  
length ~ 1,7 1,1 0,9 0,8 ~ ~ ~ ~
width ~ 1,6 0,75 0,9 0,7 ~ ~ ~ ~
Pronotum                  
length 2 2,7 1,1 1,1 0,9 1,3 0,7 0,8 0,7
width 2,4 2,6 1,4 1,6 1,2 1,7 2 2 1,8
Abdomen                  
length ~ ~ 2 3,2 1,3 2,1 1,5 1,4 2,3
width ~ ~ ~ 1,6 1,4 2,1 2,3 1,8 2,1
Foreleg length                  
femur ~ ~ ~ ~ 0,7 ~ ~ ~ ~
tibia ~ ~ ~ ~ 0,6 ~ ~ ~ ~
tarsus ~ ~ ~ ~ 0,4 ~ ~ ~ ~
Middle leg length                  
femur ~ ~ ~ ~ 0,7 ~ ~ ~ ~
tibia ~ ~ ~ ~ 0,7 ~ ~ ~ ~
tarsus ~ ~   ~ 0,1 ~ ~ ~ ~
Hind leg length                  
femur ~ ~ ~ ~ 0,6 ~ ~ ~ 0,9
tibia ~ ~ ~ ~ ~ ~ ~ ~ 0,7
tarsus ~ ~ ~ ~ ~ ~ ~ ~ ~

 

TABLE 2. Genera of †Ademosynidae.

1. Prosternal intercoxal process parallel-sided, or widening apically, often with lateral tongue-like projections at its apex; elongate-oval beetles, body length exceeds maximum width 2,5-3 times (except some Ademosyne) 2
        - Intercoxal process acute, narrowing posteriorly; transverse, stout beetles, body at most two times as long as maximum width. Mesocoxae widely separated by anterior process of metaventrite; metanepisterna with thick median longitudinal ridge Cephalosyne Ponomarenko, 1969
2. Anterior prosternal margin almost straight, very slightly concave; metacoxae three times as wide as long, not narrowing laterally Gnathosyne Ponomarenko, 1977
  - Anterior prosternal margin distinctly curved; metacoxae narrowing laterally 3
3. Anterior margin of metanepisterna straight; anterior process of metaventrite elevated Petrosyne Ponomarenko, 1969
  - Outer angles of metanepisterna protruding forward; anterior process of metaventrite not elevated 4
4. Head hypognathous, less than half as wide as posterior pronotal margin. Body strongly convex, almost as long as wide Sphaerosyne, Ponomarenko, 1969
  - Head prognathous, less than twice as narrow as basal margin of pronotum; body elongated 5
5. Protrochantins more or less rectangular, length and width equal; apex of prosternal intercoxal process usually with lateral protrusions (if not, then mandibles with distinctly curved apices and pronotum with median longitudinal depression); metacoxal width two times exceeding length, coxae with maximum length medially Dolichosyne Ponomarenko, 1969
  - Protrochantins transverse, more than three times as wide as long; metacoxal width more than four times exceeding length, coxae weakly narrowing laterally Ademosyne Ponomarenko, 1969