Key to complex of genera close to the genus Malachius (Malachiidae)

A.G. Kirejtshuk
April 2003

1. • Male special structures not distinct
     .......................................................................... 2
   • Male special structures distinct, located on antennae, head or elytral apex
     ..........................................................................3
2. (1)
   • Pronotum transverse
     .......................................... Haplomalachius Evers, 1985
   • Pronotum longitudinal
     ............................................ Microlipus LeConte, 1852
3. (1)
   • Male special structures located in elytral apex as impressions or appendages
     ..........................................................................4
   • Male special structures located on head as excavations or protuberances
     ..........................................................................5
4. (3)
   • First antennal joint swollen, cylindrical, apical tergite twice emarginate on distal part, with bunches of hairs
     .................................... Clanomalachius Tshernyshev, 2000
   • First antennal joint not swollen, clavate or parallel, apical tergite with evenly rounded distal part, bunches of hairs lacking
     ............................................Clanoptilus Motsch., 1853
5. (3)
   • Male head excavation lacking
     ..........................................................................6
   • Male head with deep transverse excavation
     ..........................................................................7
6. (5)
   • Male head with smooth protuberance between antenna, 5th segment simple
     ........................................... Cordylepherus Evers, 1985
   • Male head with strong horn between antenna which is round and cut at the tip, 5th segment large, funnel-shape
     .............................................. Ceratistes F.-W., 1844
7. (5)
   • Male head excavation located behind the antenna in a distal part of head, protuberance bearing long hairs disposed just inside the excavation, antenna with appendages
     .................................................. Malachius F., 1775
   • Male head excavation located before the antenna, distal part lacking protuberance, antenna simple, appendages lacking
     ............................... Anhomodactylus Mayor et Wittmer, 1981