S. Mahunka szerk.: Folia Entomologica Hungarica 64. (Budapest, 2003)

jecting scale (Fig. IE); 2nd metasomal tergite is small and free (not fused with 3rd), with a dense patch of setae antero-laterally (Fig. IE). Two species are known from the Western Palaearctic, both are common in Hungary. Key to the Western Palaearctic species of the genus Ceroptres Hartig 1. Two raised vertical carinae on face distinct (Fig. 1A); Fl equal in length to F2+F3 in male; mesopleuron entirely smooth and shining (Fig. 1C); ventral spine of hypopygium less than 2.0 times as long as broad C. clavicornis Mayr, 1872 - Two raised vertical carinae on face indistinct, present only closely to antennái sockets (Fig. IB); Fl equal in length to F2 in male; mesopleuron with faint striae dorso-anteriorly (Fig. ID); ventral spine of hypopygium more than 2.0 times as long as broad C. cerri Hartig, 1840 Fig. 1. Ceroptres clavicornis (A, C, E) and C. cerri (B, D) - Head in frontal view (A, B); mesopleuron (C, D); metasoma in lateral view (E)