Crusopimpla? elongata, Kopylov, Spasojevic & Klopfstein, 2018

Klopfstein, Seraina, 2022, High diversity of pimpline parasitoid wasps (Hymenoptera, Ichneumonidae, Pimplinae) from the lowermost Eocene Fur Formation (Denmark), Geodiversitas 44 (23), pp. 645-664 : 651-652

Crusopimpla? elongata n. sp.

( Fig. 3 )

urn:lsid:zoobank.org:act:1F0FF362-C1D6-4988-933D-E53B2B1D6B94

TYPE MATERIAL. — Holotype male: FUR-11220 (part and counterpart; leg. E. Rettig).

ETYMOLOGY. — The name of this species refers to its elongate body shape.

TYPE HORIZON AND LOCALITY. — Denmark, Jutland, Limfjord region, MorsØ Kommune , Klinten ved Klitgård . Cement stone.

DIAGNOSIS. — Taxonomic placement: because only a single, though well-preserved male is available to base the description of this species on, subfamily placement is a bit less certain. However, the pattern of grooves and elevated areas on the tergites, which are showing rather consistently in both the part and the counterpart of this fossil, are rare outside this subfamily. It shares its colour pattern with Theronia ? furensis , Crusopimpla minuta , C. rettigi and C. violina described here-in. The extensive carination of the propodeum points to the genera related to Theronia Holmgren or to Crusopimpla ; placement in the latter is only tentative, as no hind wings are preserved and the state of the nervellus thus cannot be resolved.

Species diagnosis: The colour pattern is reminiscent of most other Crusopimpla described here and of Theronia ? furensis . Furthermore Crusopimpla collina shows similarly elevated areas on its tergites. The current species differs from all of these and from the other species of the genus by its elongate wings and body.

DESCRIPTION

Preservation

Holotype in lateral to latero-dorsal view. Head partially preserved, no antennae visible. Mesosoma rather well preserved, including part of propodeal carination; fore wings nearly complete, hind wings indiscernible. Metasoma highly complete, including well-preserved male genital organs.

Body 10.5 mm. Head and mesosoma dark brown, wing venation orange-brown, with light base of pterostigma. Legs orange. T1 brown at base, remainder orange, remaining tergites entirely orange; the very tips of parameres dark brown.

Head. Rather round, difficult to interpret; antennae missing.

Mesosoma. A little elongate; notauli unclear; propodeum with distinct carination, corresponding to nearly complete pleural, lateromedian and maybe lateral longitudinal and partial transvers carinae, spiracle circular.Fore wing 7.1 mm; areolet closed, triangular, receiving vein 2m-cu at its outermost corner (4-M nearly obliterate); 2m-cu with two bullae,weakly bent outwards; pterostigma 4.4 × longer than wide; 1cu-a meeting M + Cu opposite 1-M. 1-Cu clearly longer than 2cu-a; radial cell 3.6 × longer than wide.Hind legs not well preserved, but rather slender.

Metasoma. With T1 longer than wide, with strong median longitudinal carinae that are nearly parallel on most of its length; T2 at most a little wider than long, T3-T7 all nearly of the same length, with indications of diagonal grooves cutting off anterolateral corners and subapical transverse grooves. Parameres outlined, showing narrow and pointed tips.

Figures

FIG. 3. — Holotype of Crusopimpla elongata n. sp. (FUR-11220), photograph (A) and interpretative drawing (B), where dotted lines represent uncertain and/or interpolated interpretations. Scale bar: 1 mm.