Cerocoma (Metacerocoma) schreberi Fabricius, 1781

Turco, Federica & Bologna, Marco A., 2011, Systematic revision of the genus Cerocoma Geoffroy, 1762 (Coleoptera: Meloidae: Cerocomini) 2853, Zootaxa 2853 (1), pp. 1-71 : 51

Cerocoma (Metacerocoma) schreberi Fabricius, 1781

Figs 2A , 3A , 4A , 5A , 6A

Cerocoma schreberi Fabricius, 1781: 331 ; Reitter, 1913: 191; Mařan, 1944: 87.

Cerocoma (Metacerocoma) schreberi, Kaszab, 1951: 261 , 265, 271; Bologna, 1991: 163; Dvořák, 1993: 5.

Type locality. “Europa australiori” ( Fabricius 1781).

Type specimens. We examined photographs of Fabricius’ types (one male and one female) preserved at ZMUC .

Description. Male. Body metallic green with a short yellowish pubescence, denser on pronotum; abdomen orange with last two segments dark green metallic; antennae and mouthparts, including maxillary palpi, yelloworange; legs yellow-orange, except for meso- and metatarsomeres dark.

Head sub-squared with protruding eyes ( Fig. 5A ). Maxillary palpi modified with palpomeres II–III wide, flattened and distinctly curved; IV stout (about 2x as long as wide), weakly flattened and sinuate on both sides ( Fig. 3A ). Antennae strongly modified with antennomere I bearing a short and pointed protrusion on the external side and dorsal keel narrow and very high, apically fringed; II–VIII variously expanded and shaped; IV with a narrow, long and curved expansion on dorsal side; V with a long and narrow expansion on dorsal side; IX very swollen and transverse ( Fig. 2A ).

Pronotum elongate. Protibiae modified with a very high and flattened dorsal keel, apically curved ( Fig. 4A ). Protarsomeres dorso-ventrally flattened; I–IV widened on the external side; V angularly widened on the internal side.

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

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

Distribution. Portugal, Spain, S France, Italy, S Germany, Czech Republic, Slovakia (possibly extinct in the last three countries), Austria, Hungary, Slovenia, Croatia, Bosnia-Hercegovina, Serbia, Montenegro, Albania, Macedonia, Bulgaria, Greece, Romania, Ukraine, S Russia, European and Asiatic Turkey, Syria, Israel-Palestine, Georgia, Azerbaijan, Kazakhstan, Turkmenistan, Uzbekistan, Kyrgyzstan, Tajikistan, Afghanistan, W China. Record from northwestern Africa is erroneous and those from S Poland and Iran (Fars) need confirmation.

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 5. Male head, dorsal view: A, C. schreberi; B, C. scovitzi; C, C. vahli; D, C. adamovichiana; E, C. kunzei; F, C. schaefferi. 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).