Arcyphysa caldera, Wells & Contents, 2018

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, Zootaxa 4415 (1), pp. 1-44 : 32

publication ID	https://doi.org/ 10.11646/zootaxa.4415.1.1
publication LSID	lsid:zoobank.org:pub:5DAA824F-BCBD-47FF-9948-F7EC45829AEB
DOI	https://doi.org/10.5281/zenodo.5966246
persistent identifier	https://treatment.plazi.org/id/03D65762-334C-3F20-908B-22A09CC9BC39
treatment provided by	Plazi
scientific name	Arcyphysa caldera
status	sp. nov.

Treatment

Arcyphysa caldera sp. nov.

( Figs 117–118 View FIGURES 117–131 )

Material examined. Holotype ♂, NE Queensland, The Crater, Atherton Tableland , 25.iv.1979, S.R. Curtis ( NMV [PT-1040; TRI-39415; WTH-0327]).

Paratypes, NE Queensland: 1♂ (dry), 17 mls S of Atherton , 3000 ft, 19.iii.1964, I.F.B. Common & M.S. Upton ( ANIC) ; 1♂ (dry), Wright Creek, Lake Eacham N.P., 5.ix.1972, O.S. & C.M. Flint ( NMNH) ; 1♂, Tinaroo Creek road, 21.ii.1982, M.S. Moulds ( NMV [ WTH 0313 About NMV ]) ; 1♂, Mt Lewis Road, Julatten, 2500 ft, rainforest, 10.xii.1986, A. Walford-Huggins (NMV [WTH 0311]).

Diagnosis. This species groups with Arc. sybillae, Arc. crescentina, Arc. hugginsi , and Arc. carnarvona , all of which share the male genitalic feature of a basal paramere on the phallus. Like Arc. crescentina, Arc. hugginsi , and Arc. carnarvona, Arc. caldera has 2 sets of paired processes on medially on apicolateral margins of abdominal segment IX, and in common with Arc. crescentina , one pair are crescent-shaped, but more openly curved and densely setose than in Arc. crescentina and the dorsal pair are not flattened distally; the coxopodites of the gonopods are more slender, being about 5x as long as wide.

Description. Male. Length of each forewing: 8.8–10.5 mm (n = 2). Abdomen with internal membranous sacs elongate-oval, extending for about 1.5x segment length; lateral filaments on segment V short.

Genitalia ( Figs 117–118 View FIGURES 117–131 ): Tergite IX slightly sclerotised, covered with minute spicules, row of bristles along distal margin, fused with membranous tergite X; sternite IX lying partly within segment VIII; upper apical angle extended to slender, curved, outer apicolateral process, inner apicolateral process arising ventromesally, openly curved, covered with row of spicules; gonopods rather slender, each with coxopodite in ventral view length about 5x maximum width, in lateral view slightly expanded distally, harpago short, curved mesad, shallowly bifid apically; phallic apparatus slender, downturned slightly, expanded apically, small membranous tapered paramere on each side of base.

Female. Unknown.

Distribution. Known only from North-east Queensland.

Remarks. An adult female was taken with the Tinaroo Creek specimen, but since several species have been taken in the same general area, any association can only be tentative.