Leptus (Leptus) pouryayevalii, Hakimitabar & Saboori & Fadaei, 2021

Hakimitabar, Masoud, Saboori, Alireza & Fadaei, Elnaz, 2021, A new species of Leptus (Acari: Erythraeidae) from Iran, Persian Journal of Acarology 10 (2), pp. 137-143 : 138-140

Leptus (Leptus) pouryayevalii sp. nov. ( Figs. 1–10 )

Diagnosis

One seta on palpal femur and two setae on palpal genu, more than four setae between coxae II– III, Ge I with two solenidia, scutum wider than long with anterior border concave, fD 211, Ti III 275.

Description (Larva, n = 1)

Idiosoma ovoid with 211 barbed setae ( Fig. 1 ). Scutum wider than long, punctate, with two pairs of sensilla and two pairs of scutalae, anterior border concave, posterior border straight, anterolateral and posterolateral borders slightly concave. ASens bases slightly posterior to level of AL bases, ASens and PSens filiform, barbed on distal 1/3; AL (54) and PL (52) semi-equal ( Fig. 3 ). One eye on each side of scutum, both spherical in shape and 32 in diameter ( Fig. 1 ).

Ventral surface of idiosoma with barbed sternalae; two barbed sternalae between coxae I (1a) and between coxae II (2a); sternalae 1a longer than sternalae 2a. Eight barbed intercoxalae between coxae I and II, 51 barbed intercoxalae between coxae II and III, 76 barbed setae behind coxae III ( Fig. 2 ). NDV = 211 + 139 = 350 (holotype)

Gnathosoma cone-shaped, 215 long with barbed galealae (Ga) and two pairs of hypostomalae, anterior hypostomala (aHy) smooth, pointed and minute (7), shorter than barbed, pointed and long posterior hypostomalae (pHy) (37). Bulbus basal segment of chelicerae punctate. Palpfemur and palpgenu with one and two setae, respectively. Palptibia with three barbed setae. Palptarsus with 8 setae including 6 barbed setae, a solenidion and an eupathidium. Palpal setal formula: fPp= 0-B- BB-BBB-6Bωζ ( Fig. 4 ). Supracoxal seta of palp (eP) peg-like, 5 long.

Lengths of legs I, II & III: 991, 846 & 1022. IP = 2859. Coxae I–III each with one seta; coxalae 1b, 2.7 times longer than coxalae 2b; coxalae 3b longer than coxalae 2b; all coxalae barbed ( Fig. 2 ).

Leg segmentation formula: 7-7-7. Leg setal formula: Leg Ι: Ta - 1ω, 1ε, 2ζ, 28n; Ti - 2φ, 1κ, 14n; Ge - 2σ, 1κ, 8n; TFe - 5n; BFe - 2n; Tr - 1n; Cx - 1n ( Figs. 5–6 ). Leg ΙΙ: Ta - 1ω, 1ε, 2ζ, 26n; Ti - 2φ, 15n; Ge - 1σ, 1κ, 8n; TFe - 5n; BFe - 2n; Tr - 1n, Cx - 1n ( Figs. 7 & 8 ). Leg ΙΙΙ: Ta - 1ζ, 26n; Ti - 1φ, 15n; Ge - 8n; TFe - 5n; BFe - 1n; Tr - 1n; Cx - 1n ( Figs. 9–10 ).

Measurements are given in Table 1.

Etymology

The species is named in memory of the late Pahlavan Mahmoud, more commonly known as Pouryaye Vali (deceased 1322 CE), a Persian Sufi and wrestling champion. The nickname Pouryaye Vali has been attributed to Pahlavan Mahmoud in Khwarazm.

Type Material

The holotype (ARS-20201010-1a) was collected by M. Hakimitabar, off host, 23 July 2009 in

Koushk Bala village , Chalous road, Karaj, Iran (35° 59.057′ N, 51° 5.296′ E, 1824 m a.s.l.). The

holotype is deposited in the Acarological Collection , Jalal Afshar Zoological Museum , Faculty of Agriculture, University of Tehran, Iran ( JAZM) .

Remarks

Leptus (Leptus) pouryayevalii sp. nov. belongs to the sudanensis species group and hospeticus species subgroup of Leptus (Leptus) (see Saboori et al. 2020). There is only one species, L. (L.) hospeticus Haitlinger, 2002 from India in this subgroup. The new species differs from it in eight setae between coxae I & II (vs. two setae in L. (L.) hospeticus), fD (211 vs. 114), shape of scutum (anterior margin concave in L. (L.) pouryayevalii sp. nov. vs. deeply concave in L. (L.) hospeticus), the shorter LX (18 vs. 24–30), longer Ta I (181 vs. 132–140), Ti I (238 vs. 144–154), Ge I (186 vs. 120–124), Ta III (173 vs. 130–144), Ti III (275 vs. 190–206), and Ge III (163 vs. 112–116). For more differences see Table 1.

Figures

Figures 1–2. Leptus (Leptus) pouryayevalii sp. nov. – 1. Dorsal view of idiosoma; 2. Ventral view of idiosoma.

Figures 3–4. Leptus (Leptus) pouryayevalii sp. nov. – 3. Scutum; 4. Gnathosoma: Ventral view (left) and dorsal view (right).

Figure 5–10. Leptus (Leptus) pouryayevalii sp. nov. – 5. Tr–Ge I; 6. Ti–Ta I; 7. Tr–Ge II; 8. Ti–Ta II; 9. Tr–Ge III; 10. Ti–Ta III.