Arcyphysa, 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 : 24

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.5966228

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 144–145 View 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, 139 View 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. 134 View FIGURES 132–145 ), coxopodites triangular; in lateral view, coxopodites sub-quadrilateral ( Fig. 135 View 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. 141 View FIGURES 132–145 )........................................... Arcyphysa volsella   sp. nov.

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

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

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

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

-. Apicolateral processes on segment IX not as above ( Figs 138–139 View 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, 122 View FIGURES 117–131 )............................................................................................... 8

-. Phallic apparatus without parameres; harpagones never bifid apically, sometimes cup- or spatula-shaped (e.g., Figs 104 View 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, 120 View 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. 118 View FIGURES 117–131 )....................................................... Arcyphysa caldera   sp. nov.