BLATTINOPSIDAE Bolton, 1925

Prokop, Jakub, weiβ, Klaus-Dieter, Dechambre, Roger-Paul & Nel, André, 2012, Early Permian insects from Saar-Nahe Basin of Odernheim town site, Rheinland-Pfalz in Germany (Insecta, Grylloblattida, Blattinopseida), Geodiversitas 34 (2), pp. 271-281 : 271-281

publication ID	https://doi.org/ 10.5252/g2012n2a2
persistent identifier	https://treatment.plazi.org/id/C0287A67-FFC8-FF8B-62A2-CDE1317BFE9C
treatment provided by	Marcus
scientific name	BLATTINOPSIDAE Bolton, 1925
status

Treatment

Family BLATTINOPSIDAE Bolton, 1925 View in CoL

gen. et sp. indet. ( Figs 5-8 View FIG View FIG View FIG View FIG )

MATERIAL. — MNHN.F.A31047 (antero-median part of a forewing); MNHN.F.A31048 (anterior part of a forewing).

TYPE LOCALITY. — Odernheim town, Saar –Nahe Basin, Rheinland-Pfalz, Germany.

TYPE STRATA. — Early Permian, Rotliegend, Meisenheim Formation, Odernheim Subformation, Odernheim lake horizon (L-O8 or M8 respectively), lacustrine black shales. DESCRIPTIONS

Specimen MNHN.F.A31047 ( Figs 5 View FIG ; 6 View FIG )

Length of fragment 8.0 mm, width 5.6 mm; costal area 0.9 mm wide;area between ScP and RA 0.83 mm wide; RA simple; base of RP 3.7 mm from wing base; stem of RP very short, RP with a least five branches; M with only one stem emerging from Radius near wing base, and at least two distal branches; a strong oblique crossvein between M and CuA; CuA with at least three distal branches; CuP simple; area between CuA and CuP very broad, with four rows of cells.

Specimen MNHN.F.A31048 ( Figs 7 View FIG ; 8 View FIG )

Length of fragment 15.5 mm, width 4.6 mm; costal area 0.98 mm wide; area between ScP and RA 1.1 mm wide; RA simple; base of RP 4.4 mm from wing base; stem of RP very long, 1.7 mm long, RP with a least about 11 branches, presence of longitudinal furrows between branches of RP; M with two stems emerging from radius, one near wing base and second near base of RP; a strong oblique crossvein between M and CuA; area between CuA and CuP probable broad.

DISCUSSION These two forewing fragments correspond to Blattinopsidae for the broad area between ScP and R; RP with many posterior branches, presence of a vein-bow (visible in specimen MNHN.F.A31047); CuA closely parallel with posterior branch of M; a distinct brace between CuA and M ( Béthoux & Nel 2002). All the characters of the wing venation of specimen MNHN.F.A31048 are typical of blattinopsids of the two genera Blattinopsis Giebel ,

ScP

1867 and Glaphyrophlebia Handlirsch, 1906 for the presence of only one branch of M emerging from R and broad area between ScP and RA. The differences between these two genera are weak and few and concern the area between the branches of RP, i.e. presence versus absence of longitudinal furrows between branches of RP. These are not visible in specimen MNHN.F.A31047. Thus it is not possible to prefer one of these genera for this fossil.

Specimen MNHN.F.A31048 has such furrows between the branches of RP, thus it could be related to Glaphyrophlebia . It has two branches of media emerging separately from radial stem, but this character is present in other representatives of Blattinopsis and other genera ( Hörnschemeyer & Stapf 2001). Nevertheless, it has a very particular structure, unique among the Blattinopsidae , i.e. a very long stem of RP. This would support an attribution to a new species of Glaphyrophlebia , but we prefer not to name it for its very incomplete state of preservation.

In addition two species based on fragmentary wings ( Blattinopsis arnhardi Müller, 1977 , Blattinopsis tardefurcata Müller, 1977 ) were described from the Lower Rotliegend of the locality Sperbersbach- Schmücke (near Oberhof village, Suhl district) in the Thuringian Forest Mts ( Müller 1977). Blattinopsis arnhardi differs from MNHN.F.A 31047 in the fork of MP close to base of RP. Blattinopsis tardefurcata differs from it in the presence of numerous small cells in area between CuA and CuPb.