Gracilipsodes aurorus Malm &amp; Johanson 2008, SP. NOV.
Creators: name: Malm, Tobias
name: Johanson, Kjell A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Leptoceridae
Gracilipsodes
Gracilipsodes aurorus

description: GRACILIPSODES AURORUS SP. NOV. (FIGS 4, 13) <i>Diagnosis:</i> This species is distinguished from <i>G. lanceolatus</i> sp. nov., <i>G. grandis</i> sp. nov., <i>G. psocopterus</i>, and <i>G. similis</i> by the tibial spur formula 2, 2, 2 and the presence of a pair of pre-apical lateral processes of tergum X, originating from the apical half of the segment. It is separated from <i>G. aureus</i> sp. nov. and <i>G. robustus</i> sp. nov. in the genitalia, by the longer pre-apical lateral processes of tergum X, and in the forewing, by a longer crossvein m–cu, oriented at a sharp angle to M. It is separated from <i>G. koghiensis</i> sp. nov. and <i>G. aoupiniensis</i> sp. nov. by having a darker body colour, by the notched tergum X apex, and by the smaller number of both hind tibial spines and mesal spines on the apical part of the inferior appendage. <i>Description, male:</i> Body dark greyish brown. Forewing transparent grey with pale spots. Tibial spur formula 2, 2, 2. Hind tibiae each with 15–20 small blackish spines (<i>N</i> = 27). Forewing (Fig. 4A): length 7.0– 7.6 mm (<i>N</i> = 27), apically rounded; forks 1 and 5 present; crossvein m–cu nearly as long as crossvein r–m, and sharply angled to M. Hindwing (Fig. 4B): length 5.3–5.7 mm (<i>N</i> = 27), apex nearly acute; forks 1, 3, and 5 present; crossvein r–m convex; costa with 16 hamuli. <i>Genitalia:</i> Segment IX annular, laterally setose, narrowest at bases of superior appendages; in lateral view tergite IX wider than sternite IX (Fig. 4C), central part of tergite IX posterior margin produced posteroventrally (Fig. 4C, D), smooth, except for a few long setae in some individuals. Superior appendages setose, flattened dorsoventrally, as long as or longer than tergum X, and apices narrowly rounded in dorsal view (Fig. 4D). Tergum X membraneous; median process entire, wide at basis, tapering to rounded apex, in ventral view with straight dorsal margin (Fig. 4C), and apex with a wide V-shaped notch in dorsal and ventral views (Fig. 4D, E); pre-apical lateral processes about as long as median process, produced at apical half, sclerotized, digitate, directed posterad, and slightly curved ventrad (Fig. 4C, E). Inferior appendages each bipartite, and setose; basal part basally slender in lateral view (Fig. 4A), wide in ventral view (Fig. 4E), mesally concave and produced posteromesally into broad, apically rounded lip, well-sclerotized along margin, and bearing small dorsal spines (Fig. 4C, E); apical part of each inferior appendage digitate, curving mesally; in lateral view, straight, parallel-sided, apex rounded, with 25–30 mesal spines (Fig. 4C); mesal process with nine strong spines (Fig. 4D). Harpago: small, sclerotized (Fig. 4C). Phallic apparatus simple (Fig. 4F, G); phallicata basally tubular, fused with phallobase, and apex truncate; bent about 45° ventrally at distal half; apically with pair of sclerotized, broad lateral processes, ventrally directed, tapering distally (Fig. 4F); phallotremal sclerite U-shaped (Fig. 4G). <i>Holotype (male):</i> New Caledonia, Province Nord, Mt Panié, stream at camp, 20.58167°S, 164.76472°E, 1311 m a.s.l., 9 December 2003 – 2 January 2004, Malaise trap, loc#073 (K. A. Johanson). <i>Paratypes:</i> 12 males, same data as holotype. Fourteen males, ditto, except 20.58139°S, 164.76444°E, 1310 m a.s.l., loc#074. <i>Distribution:</i> Province Nord, Mt Panié. <i>Etymology: aurorus</i>, from Latin, <i>aurora</i>, dawn, daybreak; referring to the dark, sclerotized basal posteromesal lip of the inferior appendage, which contrasts with the paler basal part.
description: Published as part of <i>Malm, Tobias &amp; Johanson, Kjell A., 2008, Revision of the New Caledonian endemic genus Gracilipsodes (Trichoptera: Leptoceridae: Grumichellini), pp. 425-452 in Zoological Journal of the Linnean Society 153 (3)</i> on pages 432-435, DOI: 10.1111/j.1096-3642.2008.00403.x, http://zenodo.org/record/5446337