Eduardoxenus, Legalov & Nazarenko & Perkovsky, 2018

Legalov, Andrei A., Nazarenko, Vitaliy Y. & Perkovsky, Evgeny E., 2018, A new genus of fungus weevils (Coleoptera: Anthribidae) in Rovno amber, Fossil Record 21 (2), pp. 207-212 : 208

Genus Eduardoxenus gen. nov.

Type species Eduardoxenus unicus sp. nov.

Etymology: The genus is named after the father of the last author.

Diagnosis: Body is almost glabrous; rostrum short, without carina; labrum free; mandibles longer than rostrum; rostral pleurostomal sinus deep; eyes large, coarsely faceted; antennal scrobes foveiform; antennae inserted anterodorsally, not geniculate; transverse dorsal pronotal carina antebasal, almost straight; lateral carina long, almost reaching apical margin of pronotum; elytra convex; greatest width at middle; humeri distinct; striae regular; elytral intervals flattened, wide; epipleuron distinct; pygidium concealed by elytra; femora weakly clavate; tibiae almost straight, without apical spurs; tarsomeres 1–3 with pulvilli on the underside; tarsomere 2 embracing tarsomere 3 laterally; tarsomere 3 bilobed; tarsal claws with large teeth at base.

Comparison: The new genus is similar to the genus Cyptoxenus Valentine, 1982 but differs from it in coarsely faceted eyes, antennomere 2 shorter than antennomere 1 and an almost glabrous body. It differs from the genus Valenfriesia Alonso-Zarazaga et Lyal, 1999 in the coarsely faceted eyes, almost straight transversal carina on the pronotum and distinct elytral humeri. It differs from the genus Neoxenus Valentine, 1999 in distinct lateral carina on the pronotum, coarsely faceted eyes and an almost straight transversal pronotal carina.

Remarks: The tarsomere 2 embraces tarsomere 3 laterally, labrum free, rostral pleurostomal sinus deep, pygidium present, tibiae lacking spurs, suggest placement of new genus in the family Anthribidae . The antennae inserted dorsally next to lower portion of eyes suggest placement in the subfamily Choraginae . Placement of this genus in the tribe Valenfriesiini is based on the pronotum with transverse carina, transverse pronotal carina antebasal and elytral intervals flattened.