Arcyphysa crescentina, 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 : 34

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.5966252

persistent identifier

https://treatment.plazi.org/id/03D65762-3372-3F1E-908B-21BD9A57BF90

treatment provided by

Plazi (2018-05-06 08:21:26, last updated 2024-11-28 20:48:05)

scientific name

Arcyphysa crescentina
status

sp. nov.

Arcyphysa crescentina sp. nov.

( Figs 119–120 View FIGURES 117–131 , 166–167 View FIGURES 164–178 )

Material examined. Holotype ♂, NE Queensland, Tully Falls, S of Ravenshoe , 11.i.1977, M.S. & B.J. Moulds ( NMV [PT-1002; TRI-39438; WTH-0316]).

Paratypes, NE Queensland: 1♂, data as for holotype ( NMV [PT-1002]; 2♂, Kirrama State Forest, 24 km WNW of Kennedy , 28.i.1981, M.S. & B.J. Moulds ( NMV) ; 1♂, Bellenden Ker Range, 0.5 km S Cable Tower No. 7, 500 m, 25–31.x.1981, Earthwatch (QM [WTH 0460]) ; 1♂, Goodard Creek, Kirrama State Forest , 18°06'S 145°41'E, iv.1993, G. Theischinger [TRI-39453, WTH-1037] GoogleMaps ; 1♂, Canon Creek, Kirrama State For. , 17°50'S 145°35'E, iv.1993, G. Theischinger [TRI-39452; WTH-1160] GoogleMaps ; 1♂, Hutts Brook , 19.v.1010, M. Shackleton, MS 364 ; 1♂, Tully Gorge Rd , 2.9 km u/s power station 28.v 2011, J. Mynott & M. Shackleton [TRI-54710].

Other material examined. 1♂, Queensland, Tamborine [as Tamb ], Mar. 1963, K. Korboot (QM).

Diagnosis. This species groups with Arcyphysa sybillae, Arc. caldera, Arc. hugginsi , and Arc. carnarvona , all of which share the male genitalic feature of a pair of basal parameres on the phallus. Among these species it is most similar to Arc. caldera in having the apicolateral angles of abdominal segment IX produced into a divided process; in Arc. crescentina the longer dorsal process is heavily sclerotised and slightly flattened distally, the inner process is tightly crescent-shaped, in Arc. caldera the dorsal process is not flattened and the ventral process is more openly curved.

Description. Male. Length of each forewing: 8.5–9.0 mm (n = 7). Abdomen with internal membranous sacs about as long as one segment, slightly elongate.

Genitalia ( Figs 119–120 View FIGURES 117–131 , 166–167 View FIGURES 164–178 ): Segment IX partly retracted into segment VIII; tergite IX slightly sclerotised, evenly rounded distally, fused dorsally with membranous segment X; sternite IX apicodorsal angle extended into black, somewhat twisted and flattened elongate dorsal process, also ventral crescentic process bearing band of dense setae; gonopods each with coxopodite rod-shaped, length almost 4x greatest width, harpago short, shallowly bifid to truncate apically; phallic apparatus slender, downturned apically, expanded basally with tiny acute paramere on each side.

Female. Unknown.

Distribution. Found in the Wet Tropics of north-eastern Queensland.

Remarks. Dean’s (1999) larva, Diplectrona sp. 7 (collected from Kirrama State Forest, 31 May 1971) is possibly this species, recognised by the upright black bristles covering the abdomen, narrow anterior margin of the frontoclypeus, the lateral extremities of which align closely with the inner mesal margins of the eyes.

Gallery Image

FIGURES 117–131. Arcyphysa gen. nov. spp., ♂ genitalia diagnostic features. 117–118, Arc. caldera sp. nov. (Qld, The Crater,Atherton [PT-1040]):117, ventral; 118, leftlateral.119–120, Arc.crescentinasp.nov. (Qld, TullyFalls [PT-1002]):119, ventral; 120, left lateral. 121–122, Arc.hugginsi sp. nov. (Qld, Bellenden Ker Range [PT-1000]): 121, ventral; 122, left lateral. 123–125, Arc. sybillae sp. nov. (Qld, Bloomfield River [PT-1016]): 123, ventral; 124, left lateral; 125, dorsal. 126–127, Arc. carnarvona sp. nov. (holotype; Qld, Carnarvon Gorge National Park): 126, ventral; 127, left lateral. 128–129, Arc. naumanni sp. nov. (holotype; Qld, 11 km W by N Bald Hill, McIllraith Range): 128, ventral; 129, left lateral. 130–131, Arc.lovedayi sp. nov. (holotype): 130, ventral; 131, left lateral.

Gallery Image

FIGURES 164–178. Arcyphysa gen. nov. spp., ♂ genitalia diagnostic features. 164–165, Arc. lovedayi sp. nov. (holotype): 164, ventral; 165, left lateral. 166–167, Arc. crescentina sp. nov. (Qld, Tully Falls [PT-1002]): 166, ventral; 167, left lateral. 168–169, Arc. hugginsi sp. nov. (Qld, Bellenden Ker Range [PT-1000]): 168, ventral; 169, left lateral. 170, Arc. sybillae sp. nov. (Qld, Bloomfield River [PT-1016]), ventral. 171–173, Arc. carnarvona sp. nov. (Qld, Carnarvon Gorge): 171, ventral; 172, left lateral;173, dorsal. 174–175, Arc.anaplasis sp. nov. (Qld, 25 km along Mt LewisRoad, SW of Mossman [PT-1003]): 174, ventral; 175, left lateral.176, Arc.acmea sp. nov. (Qld, Mt Bartle Frere, 0.5 km N of South Peak [PT-999]), ventral.177– 178, Arc. tortula sp. nov. (Qld, Bellenden Ker Range, Cable Tower No. 3 [PT-1031]): 177, ventral; 178, left lateral.

NMV

Museum Victoria

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Trichoptera

Family

Hydropsychidae

SubFamily

Diplectroninae

Genus

Arcyphysa