Arcyphysa,

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: 24

publication ID

https://doi.org/10.11646/zootaxa.4415.1.1

publication LSID

lsid:zoobank.org:pub:5DAA824F-BCBD-47FF-9948-F7EC45829AEB

persistent identifier

http://treatment.plazi.org/id/03D65762-3344-3F28-908B-27E29ACFBEA4

treatment provided by

Plazi

scientific name

Arcyphysa
status

 

Key to males of species of Arcyphysa 

1 Apicolateral processes length at least 4x length of coxopodites of gonopods ( Figs 144–145View FIGURES 132–145)....... Arcyphysa nebo  sp. nov.

-. Apicolateral processes length less than 4x length of coxopodites................................................ 2

2(1) Gonopods with coxopodites in lateral view subquadrate to irregularly stout, with length equal to or less than 2x width (e.g., Figs 133, 137, 139View FIGURES 132–145).................................................................................... 3

-. Gonopods with coxopodites in lateral view more or less rectangular or rod-shaped, with length exceeding 2x maximum width (e.g., 105, 118, 129)................................................................................... 7

3 (2) In ventral view, apicolateral processes on segment IX strongly curved, distally club-shaped ( Fig. 134View FIGURES 132–145), coxopodites triangular; in lateral view, coxopodites sub-quadrilateral ( Fig. 135View FIGURES 132–145)................................ Arcyphysa anaplasis  sp. nov.

-. In ventral view, apicolateral processes tapered to acute apices or narrowly rounded apically, shape of coxopodites varied, not triangular in ventral view and sub-quadrangular in lateral view.................................................. 3

4(3) Harpagones each single, tapered ( Fig. 141View FIGURES 132–145)........................................... Arcyphysa volsella  sp. nov.

-. Harpagones each distinctly bilobed (e.g., Figs 132, 136View FIGURES 132–145)....................................................... 5

5(4) Coxopodites of gonopods sub-rectangular in ventral and lateral views ( Figs 132–133View FIGURES 132–145)........... Arcyphysa acmea  sp. nov.

-. Coxopodites of gonopods triangular in ventral view ( Figs 136, 138View FIGURES 132–145).............................................. 6

6(5) Apicolateral processes on segment IX twisted, sinuous ( Figs 136–137View FIGURES 132–145)....................... Arcyphysa tortula  sp. nov.

-. Apicolateral processes on segment IX not as above ( Figs 138–139View FIGURES 132–145)........................... Arcyphysa flinti  sp. nov.

7(2) Phallic apparatus with parameres visible towards base; harpagones usually sharply and shallowly bifid apically (e.g., Figs 117, 122View FIGURES 117–131)............................................................................................... 8

-. Phallic apparatus without parameres; harpagones never bifid apically, sometimes cup- or spatula-shaped (e.g., Figs 104View FIGURES 102–109, 110)................................................................................................... 12

8(7) Ventral lobe of each apicolateral process on segment IX elaborately crescent-shaped in lateral view, with curves lined with spe- cialised setae ( Figs 118, 120View FIGURES 117–131)........................................................................... 9

-. Ventral lobe of each apicolateral process not as above...................................................... 10

9(8) Apicolateral processes in lateral view bilobed, each with ventralmost lobe loosely crescent-shaped; tergite X covered with dense microtrichia ( Fig. 118View FIGURES 117–131)....................................................... Arcyphysa caldera  sp. nov.