Arcyphysa hugginsi Wells & Contents 2018, sp. nov.
Creators: name: Wells, Alice
name: Contents, Arturs Neboiss Table Of
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Arcyphysa
Arcyphysa hugginsi

description: Arcyphysa hugginsi sp. nov.
(Figs 121–122, 168–169)
Material examined. Holotype ♂, North-east Queensland, Julatten, Mt Lewis Road, 3,700 ft, 25.i.1976, A. Walford-Huggins (NMV [PT-1001; WTH 0320]).
Paratypes. North-east Queensland: 2♂ (NMV [WTH 0322–0323], 1♀ [PT-1051; WTH 0321]), data as for holotype; 1♂, Bellenden Ker Range, Cable Tower No. 3, 1054 m, 25–31.x.1981,Earthwatch (QM [WTH 0462]); 1♂, Bellenden Ker Range, Summit, TV Station, 1560 ft, 1–7.xi.1981, Earthwatch (QM [WTH 0324]); 1♂, Mt Bartle Frere, 0.5 km N of South Peak, 1500 ft, 6–8.xi.1981, Earthwatch (QM [WTH 0461]); 1♂, Julatten, Mt Lewis Road, 2,500 ft, 10.xii.1986, A. Walford-Huggins (NMV [PT-1040; TRI-38720]).
Diagnosis. As with Arc. sybillae, Arc. caldera, Arc. crescentina, and Arc. carnarvona this species has a pair of parameres on the phallus and distinctive, complex male genitalia with the apicolateral angles of abdominal segment IX produced to form one or two pairs of elongate processes. Arcyphysa hugginsi, Arc. caldera, and Arc. carnarvona have two pairs of apicolateral processes of tergite X and in Arc. hugginsi the outermost pair are heavily sclerotised, flattened distally and each terminates in a bulbous swelling that narrows abruptly to a sharp point, in contrast to Arc. carnarvona which has these processes only slightly expanded subapically and terminating in a crenate club and Arc. caldera in which they are of even width throughout and rounded apically.
Description. Length of each forewing: ♂ 9.5–11.0 mm (n = 5); ♀ 12 mm (n = 1).
Male. Abdomen with internal glandular sacs about as long as one segment, slightly elongate; lateral filaments on segment V short.
Genitalia (Figs 121–122, 168–169): Segment IX partly retracted into abdominal segment VIII; sternite IX lying inside segment VIII, apicolateral angles each extended into heavily sclerotised, somewhat twisted, apically pointed process and also mesal pale curved process; tergite IX slightly sclerotised, evenly rounded distally, fused with membranous segment X; gonopods each with coxopodite in ventral view about 3.5x maximum width, slightly tapered distally, harpago short, curved inward, abruptly reduced and slightly bifid apically; phallic apparatus expanded basally with flexible, membranous, apically sclerotised paramere on each side, shorter than in D. sybillae.
Female. Abdominal sternite VIII in form of pair of sub-quadrate ventral plates, distal mesal angles slightly produced into short rounded lobes; segment IX basally with transverse opening to sclerotic cavity.
Distribution. North-east Queensland wet tropics.
description: Published as part of Wells, Alice & Contents, Arturs Neboiss Table Of, 2018, Australian Diplectroninae reviewed (Insecta: Trichoptera), with description of 21 new species, most referred to a new genus, pp. 1-44 in Zootaxa 4415 (1) on pages 34-35, DOI: 10.11646/zootaxa.4415.1.1, http://zenodo.org/record/1241736