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APPENDIX 1.

Key to extinct species of Trichodesma (modified from Zahradník and Háva, 2017).

 (1) Elytra without tufts of erect setae. Body length 4.8 mm  Trichodesma amberica 
   - Elytra with tufts of erect setae  2
 (2)  Each elytron with 8 tufts of black, erect setae (Figure 2.2). Body length 6.9 mm   Trichodesma electra
   - Each elytron with less than 8 tufts of erect setae  3
 (3)  Each elytron with 5 tufts of black, erect setae (Figure 2.1). Body length 4.2 mm   Trichodesma groehni
   - Each elytron with 6 tufts of reddish-brown, erect setae (Figure 2.3). Body length 6.2 mm   Trichodesma fennosarmatica sp. nov.

  

 

 

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