Grammapsychops lebedevi Martynova 1954
- Dataset
- Re-description of Grammapsychops lebedevi Martynova, 1954 (Neuroptera: Psychopsidae) with notes on the Late Cretaceous psychopsoids
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Neuroptera
- family
- Psychopsidae
- genus
- Grammapsychops
- species
- Grammapsychops lebedevi
description
Figs 1 – 3
discussion
Remarks. Martynova (1954) interpreted this wing as the left forewing, and she believed that its posterior margin is preserved (actually, it is not preserved, possibly inwardly folded). Based on this assumption, she designated veins accordingly and incorrectly, i. e., her M is actually five proximal branches of RP; Cu (CuA and CuP) is M (MA and MP); A 1 is Cu (CuA and CuP); and A 2 is AA 1. The venation of the holotype shows that this is a hind wing because its CuA is clearly concave. Also, M is forked very proximally and the anterior trace of AA 1 is proximally parallel to the posterior trace of CuP, which are more characteristic of the hind wing than of the forewing. Martynova believed that the margins of the broad basal part of the vein R, then RP, are two parallel thin veins, i. e., R, then RP, and M in her interpretation (see Martynova 1954: Fig. 1). So, she considered ‘ M’ running to the wing base as a separate vein and deeply forked into five branches (my RP 1 to RP 5). However, it is clearly visible that the basal parts of R and RP are broad and no break of RP between the origins of RP 1 and RP 6 exists (Fig. 2 B). The costal space of this wing is very broad assuming that it might be a forewing. However, the costal space of the hind wing of Cretapsychops decipiens Peng et al., 2010 is similarly configured to that of Grammapsychops lebedevi: it is very broad, wider than that of the forewing, and proximally more dilated than distally (see Peng et al. 2010: Fig. 3). Also, the costal spaces of the hind wing of Pulchroptilonia espatifata are configured rather similarly (see Martins-Neto 1997: Figs 8 A, B).
materials_examined
Holotype. Specimen PIN 846 / 1 - 2 (part only), collected by Ivan V. Lebedev in 1951. An incomplete hind wing. Type locality and horizon. Russia: Krasnoyarsk Region: District of Pirovskoe: right bank of the Kem’ River (left tributary of Yenisey River), ca. 5 km upstream from the mouth of the Belaya River [57.971372 ° N 92.230036 ° E]; exposure 0 92, horizon 3. Late Cretaceous: Cenomanian (Simonovo Formation).