Melanosiagon, Batelka & Prokop, 2021

Batelka, Jan & Prokop, Jakub, 2021, The earliest beetle with mouthparts specialized for feeding on nectar is a parasitoid of mid-Cretaceous Hymenoptera, BMC Ecology and Evolution (207) 21 (1), pp. 1-12 : 3

Melanosiagon gen. nov.

Type species. Melanosiagonserraticornis sp. nov.

Etymology. Generic name is a combination of the black appearance of the specimen (Greek μελάνω) and the generic name Macrosiagon [ 28]. Feminine in gender. Te name is registeredunder ZooBank LSID urn:lsid:zoobank. org:act:46B9D135-5214-4999-9F2B-0BF4133F5F7F.

Diagnosis. Tis genus is characterized by having a long and slender body, long elytra, acute, convex and partially dehiscent, small head, strongly flattened antero-posteriorly with vertex transversely planar, specialized mouthparts with elongated galea, bilobed ligula covered by bristles, prominent tibial spurs, tibial spur formula 2-2-2, antennae 11-segmented, mesonotal and metanotal legs with erect stiff spiniform setae, pretarsal claws serrate, abdominal segments laterally compressed, apical fields on hind wings with secondary “ghost” branches (sensu [ 26]: 186) and apices of hind wings asymmetrically overlapping in resting position.