Tarsonemus, Gheblealivand & Irani-Nejad & Magowski & Manzari, 2018

Gheblealivand, Saeide S., Irani-Nejad, Karim Haddad, Magowski, Wojciech Ł. & Manzari, Shahab, 2018, The genus Tarsonemus Canestrini and Fanzago, 1876 (Acari: Heterostigmatina: Tarsonemidae) in East Azerbaijan, Iran, with a description of T. lenticulatus sp. nov. and re-description of T. annotatus Livshits, Mitrofanov and Sharonov, 1979, Zootaxa 4446 (1), pp. 13-38 : 35-36

Key to females of Tarsonemus species of East Azerbaijan province

(based on Kaliszewski 1993 and Magowski 1997)

1 Tarsal part of tibiotarsus I with 2 attenuated setae (seta pl" absent)............................................... 2

- Tarsal part of tibiotarsus I with 3 attenuated setae (seta pl" present)............................................. 16

2 Tarsus II without spine like seta pl” ................................................................. T. waitei

- Tarsus II with spine like seta pl” .......................................................................... 3

3 Solenidion Ta I ω longer than, or equal to distance between its insertion and base of tibiotarsus I............... T. oncodes

- Solenidion Ta I ω distinctly shorter than distance between its insertion and base of tibiotarsus I....................... 4

4 Seta Tb v' as long as combined length of Tbt and FeGe IV........................................ T. myceliophagus

- Seta Tb v' shorter than combined Tbt and FeGe IV........................................................... 5

5 Tergite C and metapodosomal plate with irregular dimpled ornamentation................................. T. limitatus

- Tergite C and metapodosomal plate with uniform finely dimpled ornamentation.................................... 6

6 Sejugal apodeme arch-like, continuous..................................................................... 7

- Sejugal apodeme incurved medially, double arch-like in lateral parts............................................. 9

7 Tracheae with post-atrial extensions, pointed processes of metapodosomal plate present between trochanters III and IV................................................................................................... T. mixtus

- Tracheae without post-atrial extensions, metapodosomal plate without processes between trochanters III and IV.......... 8

8 Seta Tb IV v' shorter than FeGe IV, seta Ta IV tc" 1.6x longer than Tbt and FeGe IV......................... T. hermes

- Seta Tb IV v' as long as FeGe IV, seta Ta IV tc" 1.2x longer than Tbt and FeGe IV.......................... T. virgineus

9 Posteromedial apodeme reduced in anterior part, sejugal apodeme with lateral lens-like splits........ T. lenticulatus sp. nov.

- Posteromedial apodeme developed in anterior part, sejugal apodeme without lateral lens-like splits.................... 10

10 Sejugal apodeme interrupted medially with clear, separate segment of breast platelet....................... T. bifurcatus

- Sejugal apodeme with distinct indentation medially.......................................................... 11

11 Sejugal apodeme incised medially with two small convexities (or teeth) near medial axis of body..................... 12

- Sejugal apodeme together with anteromedial apodeme projecting in the shape of anchor............................ 13

12 Anteromedial apodeme interrupted between apodemes 1 and 2, continuous in posterior part of the plate, joined with sejugal

apodeme................................................................................. T. varsoviensis - Anteromedial apodeme continuous from apodemes 1 to level of the medial ends of apodemes 2, beyond that point disappearing............................................................................................ T. confusus

13 Tracheae sometimes with weak extensions, but never strongly sclerotized............................... T. monoporus

- Tracheae with sclerotized post-atrial sacs.................................................................. 14

14 Setae sc2 reach clearly less than 1/2 beyond posterior edge of prodorsal shield, setae 3b stiff.................. T. saccatus

- Setae sc2 reach ca. 1/2 beyond posterior edge of prodorsal shield, setae 3b slender................................. 15

15 Apodemes 2 clearly reach to anteromedial apodeme.................................................. T. bilobatus

- Apodemes 2 end posteromedially in a distance of its 1/2 length to anteromedial apodeme.................... T.annotatus

16 Tarsus II without spine like seta pl” ...................................................................... 17

- Tarsus II with spine like seta pl” ........................................................................ 18

17 Palpi longer than half of gnathosomal width, tegula wider than long....................................... T. bognari

- Palpi shorter than half of gnathosomal width, tegula longer than wide..................................... T. lobosus

18 Tergite C and metapodosomal plate with irregular ornament....................................... T. schaarschmidti

- Tergite C and metapodosomal plate with uniform ornament................................................... 19

19 PrS with lobate incisions along its posterior edge; leg I without solenidion φ2 ............................. T. stammeri

- PrS without lobate incisions along its posterior edge; leg I with solenidion φ2 ..................................... 20

20 Sejugal apodeme reduced medially, laterally in shape of lines angled forward, setae c1 stiff.......................... 21

- Sejugal apodeme arcuate, continuous, setae c1 slender........................................................ 22

21 Tracheae with sclerotized sacks, setae 3b slender....................................................... T. violae

- Tracheae without sclerotized sacks, setae 3b stiff..................................................... T. lacustris

22 Setae d and f slender............................................................................. T. ravus

- Setae d and f stiff..................................................................................... 23

23 Setae d 3x shorter than setae h; branch of bifurcation of posteromedian apodeme 3x shorter than distance between its junction and that of apodemes 4 with anteromedial one........................................................ T. intextus

- Setae d as long as setae h; branch of bifurcation of posteromedian apodeme longer than distance between its junction and that of apodemes 4 with anteromedial one..................................................................... 24

24 Setae 2a located clearly below apodemes 2, femorogenu IV 3x longer than tibiotarsus......................... T. fusarii

- Setae 2a located on, or slightly below apodemes 2, femorogenu IV 2 -2.4x longer than tibiotarsus............. T. floricolus