Figure 1:

Figure 2:

Figure 3:

Species used for the analysis of phylogenetic relationships and the accession numbers for LSU sequences deposited in GenBank Species_
| Accession number | Authors | Species | Accession number | Authors | |
|---|---|---|---|---|---|
| Abursanema iranicum | KF885742 | Yaghoubi et al. (2014) | Howardulla sp. | JX291131 | Chizhov et al. (2012) |
| Anguina sp. | KU317615 | unpublished data | Litylenchus coprosma | GU727547 | Zhao et al. (2012) |
| Anguina tritici | DQ328723, KC818620 | Subbotin et al. (2006) | Nothotylenchus persicus | KT149799 | Esmaeili et al. (2015) |
| Anguinata | KY067443 | unpublished data | Nothotylenchus phoneixae | KX549319 | Esmaeili et al. (2017c) |
| Cephalenchus sp. | KU723245 | Pereira and Baldwin (2016) | Nothotylenchus sp. | MH243749 | unpublished data |
| Cephalenchus cephalodiscus | KX685166 | Pereira et al. (2017) | Paurodontella composticolla n. sp. | MH427864 | Present study |
| Cephalenchus daisuce | KX462033 | Pereira et al. (2017) | Paurodontella gilanica | MF543010 | Yaghoubi et al. (2018) |
| Cephalenchus nemoralis | KU723245 | Pereira and Baldwin (2016) | Paurodontella iranica | KP642168 | Golhasan et al. (2016) |
| Deladenus siricidicola | AY633444 | Ye et al. (2007) | Paurodontella parapitica | KU522237 | Esmaeili et al. (2016b) |
| Deladenus sp. | JX104332 | unpublished data | Paurodontella persica | KP000034 | Esmaeili et al. (2017a) |
| Deladenus sp. | JX104322 | Morris et al. (2013) | Paurodontoides sp. | MG836264 | Esmaeili et al. (2018) |
| Ditylenchus arachis | KX426052, KX426054 | Wang et al. (2017) | Rubzovinema sp. | KF155283 | Koshel et al. (2014) |
| Ditylenchus destructor | EU400626 | Wang et al. (2017) | Rubzovinema sp. | KF373736 | Koshel et al. (2014) |
| Ditylenchus dipsaci | FJ707363, KT806479, JF327763, JF327765, | Douda et al. (2013) | Sphaerularia cf. bombi | AB733664, AB733665, DQ328726 | Ye et al. (2007) |
| Ditylenchus gigas | HQ219217, KC310734 | Vovlas et al. (2011) | Sphaerularia vespae | AB300596 | Ye et al. (2007) |
| Ditylenchus oncogenus | KF612015 | Vovlas et al. (2016) | Sphaerularioidea | KR920361 | unpublished data |
| Ditylenchus persicus | KX463285 | Esmaeili et al. (2016a) | Subanguina moxae | JN885540 | Yao et al. (2012) |
| Ditylenchus stenurus | KX400577 | Esmaeili et al. (2017b) | Subanguina radicicola | JN885539 | Yao et al. (2012) |
| Ditylenchus weischeri | MG551886 | Madani and Tenuta (2017) | Subanguina sp. | KT205566, KT205560, KX776479 | unpublished data |
| Fergusobia sp. | AY633446 | Ye et al. (2007) | Travassosinema claudiae | KX844645 | Morffe and Hasegawa (2017) |
| Tylenchida sp. | FJ661086 | unpublished data | Travassosinema sp. | LC214839 | unpublished data |
| Tylenchomorpha sp. | LC147027 | unpublished data | – | – | – |
Morphometrics of Paurodontella composticola n_ sp_
| Female | Male | ||
|---|---|---|---|
| Character | Holotype | Paratypes | Paratypes |
| n | – | 10 | 2 |
| L | 1,005 | 940 ± 95.9 (803–1,053) | 620–793 |
| a | 24.5 | 25.9 ± 4.2 (18.6–31.5) | 23.0–30.1 |
| b | 6.7 | 5.1 ± 0.6 (5.4–6.9) | 4.2–5.1 |
| c | 22.3 | 24.5 ± 4.4 (17.8–32.1) | 20.7–22.5 |
| c' | 2.0 | 2.1 ± 0.4 (1.5–2.5) | 1.8–2.4 |
| V or T | 89.5 | 90.0 ± 1.2 (78.4–91.2) | 40.6–50.0 |
| Lip region height | 3 | 2.9 ± 0.2 (2.5–3.0) | 3.0 |
| Lip region width | 8.5 | 6.6 ± 0.1 (6.0–7.0) | 7.0–8.0 |
| Stylet length | 9 | 8.8 ± 0.5 (8.0–9.0) | 8.0–8.5 |
| Nerve ring from anterior end | 85 | 91.3 ± 12.0 (79–103) | 85–93 |
| E. pore from anterior end | 136 | 129.6 ± 10.2 (116–144) | 92–124 |
| Pharynx length | 150 | 154.9 ± 16.7 (136–182) | 140–156 |
| PUS length | 5 | 5.6 ± 1.2 (5.0–8.0) | – |
| Ovary length or testis | 624 | 585 ± 80.8 (408–656) | 300–310 |
| Body diameter at vulva (VBD) | 33 | 29.4 ± 5.7 (23–40) | – |
| Vulva to anus | 57 | 52.8 ± 3.8 (46–57) | – |
| Anal (cloacal) body diam. | 22 | 19 ± 2.8 (16–24) | 14–17 |
| Tail length | 45 | 39.3 ± 6.0 (26–45) | 30–33 |
| Spicules length (arc line) | – | – | 24–25 |
| Gubernaculum length | – | – | 7.0–8.0 |
| Bursa (% of tail) | – | – | 96 |