Murcybolus Li & Cai, 2021

Li, Yan-Da, Tihelka, Erik, Huang, Diying & Cai, Chenyang, 2021, Murcybolus gen. nov., a new net-winged beetle genus from mid-Cretaceous Burmese amber (Coleoptera: Lycidae: Burmolycini), Zootaxa 4966 (1), pp. 77-83 : 78

Genus Murcybolus Li & Cai gen. nov.

Type species. Murcybolus longiantennus sp. nov.

Etymology. The generic name is an anagram of “ Burmolycus ”, the type genus of Burmolycini . The name is masculine in gender.

Diagnosis. Eyes large; antennae 10-segmented, longer than half of body; antennomeres 3–10 elongate, filiform. Pronotal disc with deep rounded punctures, without carinae; posterior angles acute. Elytra long, completely covering abdomen, with eight longitudinal costae. Femora obliquely attached to trochanters. Female fully metamorphosed.

Comparison. Murcybolus has a similar general appearance to Burmolycus Bocak et al. However, it can be easily differentiated from Burmolycus by the antennal and elytral morphology. The antennomeres 3–9 of Burmolycus are comparatively short and serrate, and antennomere 3 is not significantly longer than antennomere 2. By contrast, the antennomeres 3–10 of Murcybolus are elongate and rather filiform, with antennomere 3 apparently longer than antennomere 2. The elytra of Burmolycus are shortened, not completely covering the abdomen, whereas the elytra of Murcybolus are complete, without exposed abdominal tergites. According to the description of Bocak et al. (2019), there are nine longitudinal costae on the elytra of Burmolycus, with costae 9 and 7 (counted from the suture) shortened apically. The elytra of Murcybolus , however, have only eight longitudinal costae and nine rows of cells in intercostal intervals, with costae 2 and 3 interrupted in the posterior quarter of elytra, not reaching elytral margin. In addition, the posterior angles of the pronotum are relatively acute and project laterally in M. longiantennus , while the posterior pronotal angles of B. compactus Bocak et al. are closer to a right angle.