Paralanceis, Brazidec & Legendre & Perrichot, 2023

Brazidec, Manuel, Legendre, Frederic & Perrichot, Vincent, 2023, Diversity and phylogeny of the extinct wasp subfamily Lancepyrinae (Hymenoptera, Bethylidae) revealed by mid-Cretaceous Burmese amber, Arthropod Systematics & amp; Phylogeny 81, pp. 345-369 : 345

Paralanceis gen. nov.

Type species.

Paralanceis chotardi sp. nov.

Etymology.

The genus name is a combination of Para - and - lanceis, contraction of Lancepyris , for the similarities between the latter and the new proposed genus. Gender masculine.

Diagnosis.

Female. Body stout (Fig. 5A ); head ovoid; compound eye slightly longer than high, located anteriorly on head; clypeus with median lobe triangular, lateral lobe shorter; toruli separated by flat surface; antenna short; mandible with three teeth (Fig. 5B-D ); propleuron elongate and visible dorsally; pronotum with lateral margin straight; metanotum long; metapectal-propodeal complex smooth, without projection (Fig. 5A ); fore wing with [1M] cell elongate, fully enclosed by tubular veins; pterostigma elongate; 2r-rs&Rs arising from distal half of pterostigma; 2r-rs&Rs fully tubular; R1 tubular, closing [2R1] cell; [2R1] cell lanceolate (Fig. 5E, F ).

Systematic remarks.

Following the key to the genera of Lancepyrinae of Jouault et al. (2021), our specimen keys to Lancepyris due to the fore wing with Rs+M vein tubular and the [2R1] cell closed. It differs from this genus, however, by the head less elongate, the eyes more rounded, the space between the toruli flat, and the fore wing with [1M] cell fully enclosed by tubular veins. It also differs from Azepyris gen. nov. by the vein Rs+M tubular, the cu-a vein aligned with 1M, the [1M] cell enclosed by tubular veins and the absence of lateral dentiform projections on the posterior corners of the metapectal-propodeal complex; from Gwesped by the R1 vein long, distally meeting 2r-rs&Rs, the [1M] cell enclosed by tubular veins, the antennae with 11 flagellomeres and the absence of lateral dentiform projections on the posterior corners of the metapectal-propodeal complex. Compared to all the lancepyrine genera but Lancepyris , it is particular for possessing the [2R1] cell closed. Therefore, we propose the new genus Paralanceis gen. nov. to accommodate this morphotype.

Figures

Figure 5. Paralanceis chotardi gen. et sp. nov., holotype female IGR. BU- 061. A habitus in dorsal view; B head in lateral view; C head in frontal view; D Head in ventral view; E fore wing and metasoma in dorsal view; F line drawing of fore wing. Scale bars: 1 mm (A, E, F); 0.5 mm (B, C, D).