List of closely related species pairs 

The following species should be collected and preserved in absolute ethanol for subsequent analysis of RNA/DNA sections. 

Lutz Behne proposed the following species 

• Perapion curtirostre – Perapion oblongum
• Perapion fallax – Perapion violaceum
• Otiorhynchus hungaricus – Otiorhynchus lugdunensis
• Otiorhynchus clavipes – Otiorhynchus fuscipes (and others from this group)
• Phyllobius pyri – Phyllobius vespertinus
• Trachyphloeus angustisetulus – Trachyphloeus bifoveolatus
• Trachyphloeus spinimanus – Trachyphloeus digitalis
• Foucartia squamulata – Foucartia burghauseri
• Barypeithes pellucidus – Barypeithes pellucidus ssp. duplicatus

and 

• Liophloeus lentus group (lentus, liptoviensis, gibbus, herbsti)

and Peter Sprick also the following: 

• Miarus ajugae – Miarus campanulae
• Miarus fennicus – Miarus monticola
• Catapion koestlini – Catapion seniculus 

Please note:  
We include here a request of Antonio Machado/Tenerife, email-adress: antonio.machado@telefonica.net: He needs ethanol-preserved specimens from the genera Omiamima and Omias. Please send to him as soon as possible.