Permomerope, : Tillyard, 1926

Sukatsheva, Irina D., Beattie, Robert & Mostovski, Mike B., 2007, Permomerope natalensis sp. n. from the Lopingian of South Africa, and a redescription of the type species of Permomerope (Trichoptera: Protomeropidae), African Invertebrates 48 (2), pp. 245-251 : 248-249

Permomerope australis Tillyard, 1926

Fig. 1

P. australis: Tillyard 1926: 275, text-fig. 13; Riek 1953: 56, text-figs 1–3, pl. v (B), figs 6, 7; Sukatsheva 1976: 97 (key); Jell 2004: 96 (text-figs).

Redescription: Forewing 10.7 mm long and 3 mm wide, narrow, slightly broadened in its apical half, being broadest at the level of terminal branches of MP 3+4. Subcostal space with one distinct cross-vein. Sc weakly curved, with 7 or 8 long and oblique

branches. Pterostigma present. Sc+R arced towards anterior wing margin, with up to 6 veinlets in pterostigmal area. Veins RS(+MA) and MP with 18–22 terminal branches. RS stem as long as MA stem or slightly longer. MA 3+4 2.6 times as long as MA. RS 1+2 1.6 times as long as RS, with 4–6 terminal branches. Stem of M 0.8 times as long as RS. MP 1+2 with 4 terminal branches, almost 3 times as long as MP 3+4, which ends in 4 branches. Distinct cross-veins developed between branches of RS, MA and MP. CuA 3- or 4-branched, with its base being more than 1.6 times as long as RS. 2A joins 1A not far from its end, 3A short; terminal section of anal veins subparallel to CuP. Postanal space with 4 oblique cross-veins.

Material examined: Holotype and specimens AMF 43119 (wing fragment), ANF 25208 (almost complete insect),AMF 130800 (complete wing). AUSTRALIA: New South Wales: Newcastle, North Belmont region; Lopingian , Newcastle Coal Measures , Booraloo Subgroup , Croudace Bay Formation , Belmont Conglomerate Member.

Figures

Fig. 1. Permomerope australis Tillyard, 1926, specimen AMF 130800, details of the wing venation and enlarged view of the basal half of the specimen. Scale bar = 1 mm.