Odontoperla cf. schneiderae

Mynott, Julia H, Suter, Phillip J & Theischinger, Gunther, 2017, Revision of the genus Dinotoperla Tillyard, 1921 (Plecoptera: Gripopterygidae) using morphological characters and molecular data: Establishes two new genera, three new species and updates the larval taxonomy, Zootaxa 4224 (1), pp. 1-76 : 53-54

Odontoperla cf. schneiderae complex, n. comb.

( Fig. 32 A–D)

Larva. Remarks. Larval morphology of the three genetic sub-clades ( Figs 1 & 2 , Clades NQLD, Bunya and LNP- BNP) is similar. Adult males from Bunya Mountains and northern Queensland were identified as O. schneiderae . However, the genetic and geographic distances would suggest that this is a complex of species which will require further morphological and genetic assessment. Additionally, the specimens identified by Yule (1997) as D. duplex were reexamined by JHM and match the larval description of this complex. The genitalia of D. duplex do not fit with the characters of this genus and this association, based on examination of a mature larva ( Yule (1997) will need to be reassessed.

Material examined: Queensland: 1 x adult male: Stream on Tully Gorge Road 6.7 km downstream of power station. -17.75599 145.62781. Collected: 8-May-11, Collectors: M. Shackleton & J. Mynott, Accession number: JMH1103 . 1 x larva: Atherton Tablelands, Collected May-2011, Collectors: M. Shackleton & J. Mynott, Accession number: JMH1694. Lamington National Park: Binna Burra section: 1 x larva: Coomera River at Gwongoorool Pool, Gwongoorool Pool track. -28.19994, 153.17849. Collected: 19-Nov-11, Collectors: J Mynott & M Shackleton, Accession number: JMH1389. Green Mountains section: 2 x larvae: West Canungra Creek at Yerralahla Pools, West Canungra walking track. -28.23178, 153.125. Collected: 17-Nov-11, Collectors: J Mynott & M Shackleton, Accession numbers: JMH1381, JMH1382. Main Range National Park: 2 x larvae: West Gap Creek at picnic area, Cunninghams Gap. Cunninghams Highway. -28.05347, 152.37875. Collected: 27-Nov-11, Collectors: J Mynott & M Shackleton, Accession numbers: JMH1385, JMH1386. Bunya National Park: 1 x adult male: Paradise Falls . -26.88014, 151.59722. Collected: 5-Mar-12, Collector: J Mynott, Accession number: JMH965. 2 x larvae: Paradise Falls . - 26.88014, 151.59722. Collected: 5-Mar-12, Collector: J Mynott, Accession numbers: JMH967, JMH1772. New South Wales: 2 x larvae: Wilson River at Wilson River Road . -31.20001, 152.48301. Collected: 25-Feb-11, Collectors: M Shackleton & J Mynott, Accession numbers: JMH1442, JMH1443.

Length: 5–6 mm.

Colour: Pale brownish, very pale underside; patches of white on thorax.

Body: Robust, all dorsal surfaces covered with a scattering of dark long setae.

Head: Antennae as long as body, some long fine setae on dorsal surface of posterior segments, segments elongate only near tip.

Thorax: Pronotum slightly trapezoid, anterior not as wide as posterior. Width does not exceed eye position. Meso- and meta-nota with raised bosses at base of wing pad, paler than area around.

Legs: Femora and tibiae with fringe of long fine setae on outer margin, more prominent on tibiae. Distal area of outer margin on femora with socketed setae that are broad and long, may also be present on outer and inner surfaces in distal area. Outer surface of femora (distal area) and tibiae (whole surface) with long setae similar to those on the body. Inner margin of femora and tibiae with long robust setae.

Abdomen: Surface of tergites covered in similar setae to rest of body. Hind margin of tergites with some paddle shaped socketed setae, predominantly one off-centre either side of the medial line; hind margin of tergite X with long paddle-like setae along entire margin. Paraprocts short, basal width longer than paraproct length. Gill tuft dense, gills purplish. Cerci approximately length of abdomen (most cerci had broken off near base on specimens); segment length greater than width by segment 6–7, becoming very elongated; fringe of very long setae of varying length around cercal margin.

Figures

FIGURE 1. Neighbour-joining tree of COI 5 ’ fragment using Tamura-Nei model of evolution, pairwise deletion, homogeneous lineage and 2000 bootstrap pseudoreplicates. Support below 75 are not shown on tree.

FIGURE 2. Bayesian consensus tree of concatenated COI 5 ’ and COI 3 ’ fragments. Analysis run with dataset not partitioned, model of evolution was the GTR + I + G and parameters unlinked for 10000000 generations.

FIGURE 32. Odontoperla cf. schneiderae complex: (A) dorsal overview; (B) dorsal view of hind leg; (C) dorsal surface of thorax; (D) hind tergites showing setation on the segment surface and hind margin of tergite X.