Lasioerythraeus saboorii Khanjani, Raisi & Izadi, 2011

Hakimitabar, Masoud, Saboori, Alireza & Saaveh, Hossein Mokhtari, 2018, New morphological data and new host record of Lasioerythraeus saboorii (Trombidiformes: Erythraeidae) from Iran, Persian Journal of Acarology 7 (1), pp. 41-49 : 42-47

Lasioerythraeus saboorii Khanjani, Raisi & Izadi, 2011 ( Figs. 1–13 )

Diagnosis: fn Ge: 9–9–8, Ti III> 280, PSens> 100, fV = 18.

Morphological data (based on new larval materials of L. saboorii )

Idiosoma – Oval, dorsal surface with 40 normal setae. All dorsal idiosomal setae barbed and blunted. Dorsal propodosoma with a quadrangular shape scutum; scutum punctate, wider than long with a concavity behind PL bases. Anterior margin of scutum straight, lateral margins convex ( Fig. 1 ). Scutum with 2 pairs of scutalae, AL longer than PL, both fully barbed and pointed. Anterior and posterior pairs of sensilla (ASens and PSens) with fine barbs throughout the length. PSens slightly longer than ASens ( Fig. 1 ). Two eyes present on each side of scutum, circular, not on platelets; anterior eye 20, posterior one 12 across.

Ventral surface of idiosoma bearing 4 sternalae (1 a and 3 a), 18 barbed and pointed setae behind coxae III. Sternala 1a longer than sternala 3a, both barbed and pointed. Coxae I–III each with one seta; coxala 1b longer than other coxalae; coxala 3b longer than coxala 2b; all coxalae barbed and pointed ( Fig. 2 ). NDV = 40 + 18 = 58.

Gnathosoma with smooth galealae (cs) and two hypostomalae, anterior hypostomalae (as) minute and posterior hypostomalae (bs) long and nude ( Fig. 3 ). Palpal femur and genu each with 1 barbed seta ( Fig. 3 ), tibia with three barbed setae, palpal tibial claw bifurcate with unequal prongs. Palpal tarsus with 8 setae including a solenidion and an eupathidium; one seta long ( Fig. 3 ). fPp = 0-B-B- BBB 2 -6Nωζ. Supracoxal setae (eP) minute (4 μm) and peg-like.

Leg segmentation formula: 7–7–7. Leg setal formula: Leg I: Ta- 1ϖ, 18, 2ζ,1Cp, 24n; Ti- 2φ, 1K, 15n; Ge- 10, 1K, 9n; TFe- 5n; BFe- 4n; Tr- 1n; Cx- 1n ( Figs. 4–6 ). Leg II: Ta- 1ϖ, 2ζ, 1Cp, 23n; Ti- 2φ, 15n; Ge- 1K, 9n; TFe- 5n; BFe- 4n; Tr- 1n; Cx- 1n ( Figs. 7–9 ). Leg III: Ta- 1ζ, 22n; Ti- 1φ, 15n; Ge- 9n; TFe- 5n; BFe- 3n; Tr- 1n; Cx- 1n ( Figs. 10–13 ).

Remarks (based on additional data)

Lasioerythraeus saboorii differs from L. shirleyanneae by shorter SD (82–87 vs. 98), longer AW (64–71 vs. 58), AL (83–99 vs. 78), PL (79–87 vs. 65), ASens (93–101 vs. 55), PSens (104–107 vs. 67), Ti III (287–304 vs. 269) and number normal setae on Ge I–III (9–9–8 vs. 8–8–8); from L. johnstoni by shorter SD (82–87 vs. 94–105), ISD (45–52 vs. 71–80), longer ASens (93–101 vs. 54– 65), PSens (104–107 vs. 67–84), fD (40 vs. 43–45) and number normal setae on Ge I–III (8–8–8 vs. 9–9–8); from L. cardonensis by shorter AW (64–71 vs. 104), PW (73–82 vs. 126), AL (83–99 vs. 112), PL (75–87 vs. 142), SD (82–87 vs. 130), W (90–111 vs. 178), GL (141 vs. 184), Ti III (287– 304 vs. 350), PSens (104–107 vs. 80), fD (40 vs. 120), number normal setae on Ge I–III (8–8–8 vs. 9–9–8), and from L. setarius by longer PSens (104–107 vs. 90–93), SD (82–87 vs. 62–63), W (90– 111 vs. 80–82), 1a (90–106 vs. 78–80), Ti III (287–304 vs. 200–205) and fV (18 vs. 12).

*Data are obtained from original paper

Figures

Figures 1–3. Lasioerythraeus saboorii (larva) – 1. Dorsal view of idiosoma; 2. Ventral view of idiosoma; 3. Gnathosoma.

Figures 4–13. Lasioerythraeus saboorii (larva) – 4. Trochanter-Telofemur I; 5. Genu I; 6. Tibia and Tarsus I; 7. Trochanter-Telofemur II; 8. Genu II; 9. Tibia and Tarsus II; 10. Trochanter-Telofemur II; 11. Genu III; 12. Tibia III; 13. Tarsus III.