Proedischia Pinto & Ornellas, 1978

Martins-Neto, R. G., Gallego, O. F., Brauckmann, C. & Cruz, J. L., 2007, A review of the South American Palaeozoic entomofauna Part I: the Ischnoneuroidea and Cacurgoidea, with description of new taxa, African Invertebrates 48 (1), pp. 87-101 : 94-96

Genus Proedischia Pinto & Ornellas, 1978

Proedischia: Pinto & Ornellas 1978: 309 .

Type species: Proedischia mezzalirai Pinto & Ornellas, 1978 , by original designation.

Emended diagnosis: Hind wing long and relatively narrow. ScP not distally fused with RA, but RA distally fused with RP. Origin of RP at mid-length of wing. Supporting cross vein r–m present, forming a conspicuous jugum-like constriction between RP and MA.

Comparison: Proedischia differs from Narkemina by having ScP not distally fused with RA and the origin of RP far from the wing base (very close to the wing base in Narkemina species).

Species included: Type species only.

Remarks: Pinto and Ornellas (1978) originally described this wing as a forewing belonging to the “ Protorthoptera ”, and established a separate family Proedischiidae . But there are striking similarities with the Narkeminidae , as for example the long and

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oblique CuA. The main differences between Proedischia and Narkemina are restricted to the lack of a distal fusion of ScP and RA in Proedischia . This character removes it from Narkemina (with the best-known hind wings). Judging only from the position and course of RP, Proedischia mezzalirai could be attributed to the genus Velizphlebia . But in the hitherto-known species the position and course of these veins are different in the fore and hind wings. Therefore we prefer to maintain Proedischia as a separate genus until more complete material is available, but regard the family Proedischiidae as synonymous with the Narkeminidae . If so, the name Proedischiidae established in 1978 has priority.

Genus Paganzophlebia Martins-Neto, Gallego & Brauckmann , gen. n.

Etymology: After the Paganzo Basin, Argentina, where the material comes from, and phlebia = vein (latinized form of Greek phleps). Gender feminine.

Type species: Paganzophlebia polyclada sp. n., here designated.

Diagnosis: ScP distally sigmoid, not fused distally with RA. RP originating at wing mid-length. RA and RP distally branched, not fusing.

Comparison: Similar to Proedischia in having the hind wing with ScP not fused distally with RA and the origin of RP at the mid-length of the wing, but markedly differing in the distally sigmoidal ScP and distally branched and not fusing RA and RP.

Species included: Type species only.

Remarks: The specimen presents another hind wing of strong narkeminid affinities which cannot be exactly placed into a described genus. In several aspects the new taxon closely resembles the hind wings of the species of Narkemina , except for the absence of the distal fusion of ScP and RA. In this character, Paganzophlebia is similar to Proedischia , but it clearly differs from the latter in the much more slender shape which is more similar to typical members of the Proedischiidae . This is why we prefer to establish a separate genus. Future additional material should show if it could be maintained.