coriaceum group
(established by Linsenmaier (1999) based on species previously included in the ardens group)
Hedychridium (Hedychridium) elegantulum * du Buysson, 1887 (= hybridum Linsenmaier, 1959a); H. elegantulum peloponnense * Linsenmaier, 1968; H. creteense * Linsenmaier, 1959b; H. coriaceum * (Dahlbom, 1854); H. coriaceum jendoubense * Linsenmaier, 1987; H. subcoriaceum * Linsenmaier, 1999; H. krajniki * Balthasar, 1946 (= stoeckerti Linsenmaier, 1959a); H. krajniki valesianum * Linsenmaier, 1959a [currently H. valesianum]; H. krajniki turceyense * Linsenmaier, 1968 [currently H. turceyense]; H. brevifronte * Linsenmaier, 1968; H. urfanum * Linsenmaier, 1968; H. mosadunense Lefeber, 1986; H. turanicum * Semenov-Tian-Shanskij, 1954; H. wolfi * Linsenmaier, 1959b; H. perraudini * Linsenmaier 1968 [currently H. wolfi]; H. bispeculiferum *** Linsenmaier, 1997; H. caspicum *** (Mocsáry, 1890); H. femoratum * (Dahlbom, 1854); H. gratiosum * Abeille de Perrin, 1878 (= elegans (Mocsáry, 1911); = miricolor Morice, 1909); H. gratiosum uniformis * Linsenmaier, 1959a; H. flavonigrum *** Linsenmaier, 1999; H. chlorophyllum * Trautmann, 1926; H. parkanense * Balthasar, 1946; H. parkanense dismorphum * Linsenmaier, 1959a; H. franciscanum * Linsenmaier, 1987; H. franciscanum heminigrum * Linsenmaier, 1997 .