[= Cerocoma faldermanni Laporte, 1840]
[= Cerocoma gonocera Motschulsky, 1872]
[= Cerocoma micans Ménétriés, 1832]
Information: Cerocoma muehlfeldi was described by Gyllenhal in 1817 from Austria.
Male Cerocoma schreberi is Body metallic green with short yellowish pubescence, denser on pronotum; abdomen reddish-yellow at base, last two segments dark metallic green to blue; head with deep, long groove on inner side of eyes, bordered internally by a sharp keel.
Antennae and mouthparts, including maxillary palpi, yellow-orange; legs yellow-orange except meso- and metatarsomeres dark; base of femora blue; tips of hind tibiae and hind tarsi brown.
Head sub-squared, eyes protruding; maxillary palpi with palpomeres II–III wide, flattened, curved, IV twice as long as wide, weakly flattened, sinuate; antennae strongly modified, antennomere I with short pointed external protrusion and narrow, high, apically fringed dorsal keel, II–VIII variously expanded, IV with narrow curved dorsal expansion, V with long narrow dorsal expansion, IX large, hatchet-shaped with sharp chitinous teeth, all antennomeres with bizarre projections. Pronotum elongate; protibiae with high, flattened, apically curved dorsal keel; fore tibiae flat, apically deformed, rounded, notched; protarsomeres dorsoventrally flattened, I–IV widened externally, V angularly widened internally. Gonostyli slightly curved with apical lobes dorsally directed, slightly swollen, converging; aedeagus rounded apically, aedeagal hooks subequal (subapical slightly larger); endophallus with two small, equal, well-separated sclerotised hooks, the apical directed outwards, subapical backwards.
Female without distinct modifications.
Body length: 9 - 14 mm
Peak activity: (March) April - September (depends on region)
Remarks: Cerocoma schreberi as Cerocoma schaefferi is a thermophilous species that prefers warm, dry, and open habitats such as dry grasslands, stony slopes, field margins, and steppe-like areas. Adults are active from May to August and are often found visiting flowers of Asteraceae (e.g., yarrow, chamomile) and Apiaceae, where they feed on pollen and floral tissues. The species shows a strong dependence on these flowering plants for adult nutrition and reproduction. Larvae are parasitoids of solitary wasps, particularly species in the genus Tachysphex, developing inside wasp nests by consuming paralyzed prey.
Distribution: Albania, Armenia, Austria, Azerbaijan, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic ??, Germany??, Greece, Hungary, Iran, Iraq, Israel, Jordan, Macedonia, Moldova, Montenegro, Poland??, Romania, Russia, Serbia, Slovakia ??, Syria, Turkey, Turkmenistan, Ukraine
Taxonomic classification:
Material examined (& observation):
Our observation period: June ~ July
Sampling Methods: on bush and flowers 
