Cerocoma (Cerocoma) dahli Kraatz, 1863

Turco, Federica & Bologna, Marco A., 2011, Systematic revision of the genus Cerocoma Geoffroy, 1762 (Coleoptera: Meloidae: Cerocomini) 2853, Zootaxa 2853 (1), pp. 1-71 : 22-23

Cerocoma (Cerocoma) dahli Kraatz, 1863

Figs 2U , 3U , 4U , 6U

Cerocoma dahli Kraatz, 1863: 112 ; Reitter, 1913: 193; Mařan, 1944: 86; Pardo Alcaide, 1977: 62, 65.

Cerocoma (Cerocoma) dahli, Kaszab, 1951: 265 , 268, 272; Bologna, 1979: 186, 187.

Cerocoma dahli var. nigrivestis Muche, 1963: 13 (invalid name).

Type locality. “ Rumelien” ( Kraatz 1863). The Rumelia is a region of southern Bulgaria, between the Balkan and Rhodope Mts. , but in the second half of the XIX century this name denoted the Balkan possessions of the Ottoman Empire, particularly Thrace and Macedonia (excluding Albania and Bosnia). According to the actual distribution of this species, the type locality can be restricted to the Bulgarian Rumelia .

Type specimens. Not examined.

Description. Male. Body metallic green with sparse and rather long yellowish setae; legs yellow with last four protarsomeres, meso- and metatarsomeres and metafemora dark; mouthparts, including maxillary palpi, and antennae yellow.

Head transverse with very shallow frontal calli and slightly protruding eyes. Maxillary palpi very simple, only palpomeres II and III slightly widened; II featuring a flattened narrow expansion on the internal side; IV elongate ( Fig. 3U ). Antennae very weakly modified with the antennomere I bearing a short and narrow dorsal keel; III at least twice length of II; IV and V slightly expanded on the ventral side, the IV with a rounded expansion on the ventral side; IX rounded dorsally and pointed ventrally ( Fig. 2U ).

Legs slender with protibiae very weakly modified, subcylindrical ( Fig. 4U ). Protarsomeres slightly dorso-ventrally flattened.

Gonostyli, in lateral view, slightly curved, with apical lobes dorsally directed; apical lobes, in dorsal view, swollen and slightly diverging. Apex of aedeagus rounded; aedeagal hooks subequal in size (the apical slightly larger). Sclerotised hooks of endophallus small and very close from each other, subequal in size (the apical slightly larger), the apical pointing outwards and the subapical backwards ( Fig. 6U ).

Female. Not distinctly modified. Refer to key for diagnostic characters.

Taxonomy. See discussion on the previous species.

Distribution. Bulgaria, Greece, Romania, Turkey, Georgia. Records from Armenia, Azerbaijan, Syria, Lebanon, Israel-Palestine, Jordan and Iran need confirmation and possibly some of them could be referred to C. bernhaueri . An old citation from Austria (Baudi di Selve 1878) is probably erroneous.

Figures

FIGURE 2. Male right antenna, lateral view: A, C. schreberi; B, C. martae; C, C. ephesica; D, C. prevezaensis; E, C. festiva; F, C. graeca; G, C. malatyensis; H, C. albopilosa; I, C. longiseta; J, C. barthelemyi; K, C. vahli; L, C. scovitzi; M, C. latreillei; N, C. adamovichiana; O, C. confusa; P, C. azurea; Q, C. turcica; R, C. muehlfeldi; S, C. schaefferi; T, C. prochaskana; U, C. dahli; V,C. bernhaueri; W, C. simplicicornis; X, C. gloriosa; Y, C. rapillyi; Z, C. marginiventris; AA, C. macedonica; AB, C. kunzei; AC, C. bodemeyeri. Scale bar = 1 mm.

FIGURE 3. Male right maxillary palp, dorsal view: for lettering refer to caption to Fig. 1. Scale bars = 1 mm (1: C–E, G–J, L– R, Y, AA–AC; 2: B, F, K, S–T, X, Z; 3: A, U–W).

FIGURE 4. Male right protibia, lateral view: for lettering refer to caption to Fig. 1. Scale bar = 1 mm.

FIGURE 6. Male external genitalia (from left to right: tegmen, dorsal and lateral views; aedeagus, lateral view): for lettering refer to caption to Fig. 1. Scale bars = 1 mm (1: A–E, H, L–M, R; 2: F–G, I–K, N–P, S–T, X–Y, AA–AC; 3: Q, U–W, Z).