Labenopimpla orapa, Kopylov & Brothers & Rasnitsyn, 2010

Kopylov, Dmitry S., Brothers, Denis J. & Rasnitsyn, Alexandr P., 2010, Two new labenopimpline ichneumonids (Hymenoptera: Ichneumonidae) from the Upper Cretaceous of southern Africa, African Invertebrates 51 (2), pp. 423-423 : 425-427

Labenopimpla orapa sp. n.

Figs 1–4

Etymology: After the type locality, Orapa; noun in apposition.

Description: Metasoma, legs and wing veins very dark, head, antenna and mesosoma less dark. Basal vein (1Rs&1M) arched, 1.5× as long as 1cu–a; r–rs straight; areolet 0.5× as long as r–rs; 2+3M 1.5× as long as 4M; r–m almost entirely unpigmented; 1m –cu 0.8× as long as 2Rs+M and 1.5× as long as 3Cu; 1m –cu&2Rs+M sharply bent at ramulus (1Rs+M distal rudiment); ramulus long (a few times as long as wide); 2Rs+M with indistinct long bulla at about basal third; 2m –cu with two bullae and with the middle third strongly curved; 1cu–a very slightly postfurcal (almost interstitial). Hindwing with 1Rs 1.4× as long as r–m; r–m with indistinct long bulla; 1Cu and cu–a subequal in length, meeting at angle; cu–a with indistinct bulla. First metasomal tergum short and wide, apparently with a pair of longitudinal dorsal carinae. Ovipositor longer than metasoma. Measurements (lengths) in mm: Head plus mesosoma 2.5, metasoma 3.6, ovipositor at least 4.2 from base, forewing 4.3, hindwing 2.8.

Comparison: Differs from congeners in having 1m –cu longer, areolet longer, ramulus long, 2Cu almost straight, and size smaller; also differs from L. rasnitsyni in having longer ovipositor.

Holotype: ♀ BP/2/25240-1 (part) and BP/2/25980 (counterpart). BOTSWANA: Orapa ; Upper Cretaceous , Turonian. Head and mesosoma poorly preserved, metasoma well preserved, ovipositor probably incomplete (apparent apex highly irregular); legs and antenna incomplete; fore and hindwings very well preserved.

Remarks: The description is based primarily on examination of counterpart specimen 25980 ( Figs 3, 4 ). When recently sought, specimen 25240-1 was not found. It may currently be in the National Museum of Botswana, Gaborone, but this has not been confirmed. Details of that specimen have been incorporated from a 2002 photograph ( Fig. 1 ) and sketches by A.P. Rasnitsyn.

Figures

Fig. 1. Labenopimpla orapa sp. n. Specimen BP/2/25240-1 (part), photograph (crossed polarisers) taken in 2002. Scale bar = 1.0 mm.

Fig.2.Labenopimpla orapa sp.n.Composite line drawing, components derivedfrom specimen P/2/25240-1 indicated as grey lines. Abbreviations: a – areola; other labels are conventional. Scale bar = 1.0 mm.

Figs 3, 4. Labenopimpla orapa sp. n. Specimen BP/2/25980 (counterpart), photographs: (3) using ringlight and crossed polarisers; (4) using oblique incident light. Scale bars = 1.0 mm.