Dinotoperla aryballoi, Mynott, Julia H, Suter, Phillip J & Theischinger, Gunther, 2017

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 : 14-15

Dinotoperla aryballoi , sp. nov.

( Fig. 4 A–D)

Holotype: 1 x larva: Tanjil River at Tanjil Junction , Victoria . (EPA Victoria Site Code: UVW). -37.97842, 146.19169. Collected: 1-May-12, Collectors: EPA Victoria, Accession number: JMH1827. Deposited in ANIC.

Adult. Adults are unknown.

Larva. Remarks. Very similar to D. christinae but genetically and morphologically distinct. Diagnostic difference is the single row of globular setae on the femora. The distribution currently is Victoria and southern New South Wales.

Other material examined. New South Wales: 4 x larvae: Alpine Creek , Kiandra. -35.91908, 148.59179. Collected : 9-Dec-64, Collector: EF Riek (housed in ANIC). 1 x larva: Alpine Creek , Kiandra, -35.91908, 148.59179. Collected : 28-Dec-60, Collector: E Riek (housed in ANIC). 1 x larva: Waterfall Creek at Waterfall Reserve, Mount Wilson . Blue Mountains . -33.50848, 150.37498. Collected: 25-Oct-12, Collectors: J Mynott, C Cunningham & N Harrison, Accession number: JMH1398 . 1 x larva: Nepean River at McGuires Crossing, Collected : 13-Mar-92, Collectors: Sydney Water. 8 x larvae: Cedar Creek , Collected : 15-Feb-89, Collectors: Sydney Water. Victoria : 1 x larva: Running Jump Creek (EPA Victoria Site Code: CBY). -36.76617, 146.78246. Collected : 4-Apr-12, Collectors: EPA Victoria, Accession number: JMH1834 . 1 x larva: Snowy Creek . -36.5624, 147.4106. Collectors: MDFRC (housed in voucher collection) . 1 x larva: Cobungra River . -36.9981, 147.4871. Collectors: MDFRC (housed in voucher collection) . 1 x larva: Biggara. -36.34095, 148.056. Collectors: MDFRC. Yarra Ranges National Park: 1 x larva: Cement Creek - West branch crossing Cement Creek Road . -37.714333 145.74733. Collected: 9-Oct-12, Collectors: J Mynott & S Coates, Accession number: JMH1256.

Length: 3–3.5 mm.

Colour: Light brown sometimes with paler areas.

Body: Covered dorsally with closely spaced globular hairs. Small, abdomen smaller than thorax.

Head: Dorsal surface of head with small globular hairs present; some smooth patches also present that are a slightly darker brown. Antennae long and tapering; proximal segments as wide as pedicle, distal segments elongate (length much greater than width).

Thorax: Corners of pronotum drawn out into obvious points (all four corners); anterior projections broad; side margins not parallel, tapering anteriorly. Meso- and meta-nota width greater than length; wingpads drawn into points (more pronounced in younger specimens). Margins of thoracic segments with long and broad robust sickleshaped setae.

Legs: Margins of femora and tibiae with rows of globular setae; outer surface of femora also with longitudinal rows of globular setae present. Tibiae with long fine setae present on outer margin in distal half; single longitudinal row of globular setae on outer margin. Third tarsal segment inner margin with setal fringe; tarsal claw approx. halflength of third tarsal segment.

Abdomen: Cerci length less than abdomen; thin elongate segment that often break often giving shortened appearance. Tergites with scattered long fine setae (sticky hairs that are often coated with silt) in lateral and dorsal areas of anterior half; posterior segments with robust globular setae present. Hind margin of tergite X with long straight robust setae present. Sternites also with small globular setae present. Ventral surface of paraprocts also with globular hairs present.

Etymology. From the Greek word aryballos meaning a globular flask with a narrow neck, similar to the setation type of the larvae.

Figures

FIGURE 4. Dinotoperla aryballoi, sp. nov.: (A) dorsal overview; (B) hind tergites showing setation on the segment surface and hind margin of tergite X; (C) dorsal surface of thorax; (D) dorsal view of hind leg.