Archigonatocerus balticus Huber

Huber, John T., 2015, World reclassification of the Gonatocerus group of genera (Hymenoptera: Mymaridae), Zootaxa 3967 (1), pp. 1-184 : 14-15

Archigonatocerus balticus Huber , sp. n.

( Fig. 39 )

Type material. Holotype ♀ ( AMNH), box containing amber inclusion labelled “ Holotype ♀ Archigonatocerus balticus Huber ”. The type locality is somewhere in the present day Baltic region.

Diagnosis. The female of Archigonatocerus balticus differs from that of A. longivena by the apparently shorter venation, 0.46× wing length (0.60× in A. longivena ), funicle without mps on fl3 and fl4 (with mps in A. longivena ), more slender apical three funicle segments (wider in A. longivena ), and relatively shorter gaster and ovipositor sheaths.

Description. FEMALE. Body length 1690 (holotype). Colour. Body dark brown ( Fig. 39 ); scape, radicle and legs brown. Head. Eye fairly small, ventrally well separated from back of head. Gena width in lateral view at level of lower margin of eye about equal to eye length. Occiput without transverse suture. Antenna. Scape with ventral margin moderately convex, radicle very short, about 0.11× scape length. Funicle segments fl5–fl8 apparently with 2 mps; clava undoubtedly with mps but these not visible in the holotype. Antennal measurements (length/width): scape 270/55, pedicel 60/45, fl 1 50/30, fl 2 85/25, fl 3 80/25, fl 4 80/25, fl 5 80/30, fl 6 80/30, fl7 80/40, fl8 80/40, clava 180/60. Wings. Fore wing length 1305, width 455, length/width 2.87, longest marginal setae 70. Venation length 595, 0.46× wing length. Parastigma + stigmal vein length 340. Hind wing length 930, width 50, longest marginal setae 110. Mesosoma. As in generic description. Metasoma. Petiole short (not visible). Gaster about 1.7× as long as mesosoma. Ovipositor sheath length 1180, 1.36× metatibial length (870) and slightly exserted (50) beyond gaster apex.

MALE. Unknown.

Etymology. The species name refers to the origin of the amber inclusion, the Baltic area. It is treated as an adjective.

Figures

FIGURE 39. Archigonatocerus balticus, holotype in amber: a, habitus; b, wings showing venation detail. Scale bars = 500 Μm.