Genkyhag, Brazidec & Vilhelmsen & Boudinot & Richter & Hammel & Perkovsky & Fan & Wang & Wu & Wang & Perrichot, 2024

Brazidec, Manuel, Vilhelmsen, Lars, Boudinot, Brendon E., Richter, Adrian, Hammel, Joerg U., Perkovsky, Evgeny E., Fan, Yong, Wang, Zhen, Wu, Qiong, Wang, Bo & Perrichot, Vincent, 2024, Unveiling ancient diversity of long-tailed wasps (Hymenoptera: Megalyridae): new taxa from Cretaceous Kachin and Taimyr ambers and their phylogenetic affinities, Arthropod Systematics & amp; Phylogeny 82, pp. 151-181 : 151

3.1.1.2. Genus † Genkyhag gen. nov.

Type species.

† Genkyhag innebula sp. nov.

Etymology.

Anagram of Ga Hkyeng, meaning red soil in Jinghpaw, from which the term Kachin is derived. Gender masculine.

Diagnosis.

Compound eye oval, higher than long; antenna inserted half way between eye and clypeus; flagellomeres cylindrical, subequal in length (Figs 5C, D ). Mesosoma less than half body length, shorter than metasoma; mesoscutum hiding pronotum in dorsal view; median mesoscutal sulcus and axillar groove crenulate; parapsidal lines present, parallel to median mesoscutal sulcus and diverging posteriorly; axillae not contiguous medially; mesoscutellum short (Figs 5A, B ); propodeum carinate. Fore wing hyaline, with microtrichiae; venation almost fully pigmented, with only Cu nebulous; medial cell trapezoidal and broad; marginal cell closed without bend; R1 extending beyond this cell (Figs 2C , 5A, B, and E ). Legs with one mesotibial and two metatibial spurs. Metasoma elongate, fusiform.

Comments.

One of the main differences compared to † Cretolyra gen. nov. is the presence of one mesotibial and two metatibial spurs (instead of two mesotibial and one metatibial). The presence of two metatibial spurs seems to be an apomorphy among megalyrids with reversion in some fossil taxa ( Vilhelmsen et al. 2010a).

Figures

Figure 2. Drawings of fore wing venation for the taxa described in the present paper. A † Cretolyra noijebumensis gen. et sp. nov.; B † Cretolyra shawi gen. et sp. nov.; C † Genkyhag innebula gen. et sp. nov.; D † Megacoxa chandrahrasa gen. et sp. nov.; E † Megacoxa janzeni gen. et sp. nov.; F † Megacoxa synchrotron gen. et sp. nov.; G † Kamyristi exfrigore gen. et sp. nov.; H † Kamyristi yantardakhensis gen. et sp. nov. Scale bars: 0.5 mm (A - H).

Figure 5. † Genkyhag innebula gen. et sp. nov., mid-Cretaceous, Kachin amber. A holotype female NIGP 203546, habitus in dorsal view; B paratype male FAI-BI 11324 a, habitus in dorsal view; C habitus in frontal view; D paratype male FAI-BI 11324 b, habitus in lateral view; E paratype FAI-BI 11324 c, fore and hind wings, with hamuli indicated by arrows. Scale bars: 1 mm (A - E). Abbreviations: AG = inner axillar groove; MMS = median mesoscutal sulcus; OC = occipital carina.