Diptilomiopus bahaensis, Khan & Kamran & Alatawi, 2023

Khan, Eid Muhammad, Kamran, Muhammad & Alatawi, Fahad Jaber, 2023, A new species of the genus Diptilomiopus Nalepa and a key to diptilomiopid species (Prostigmata; Eriophyoidea; Diptilomiopidae) associated with Moraceae plant family, Zootaxa 5375 (1), pp. 93-102 : 96-99

Diptilomiopus bahaensis sp. nov.

urn:lsid:zoobank.org:act:FE416A16-CFA9-4DC5-8A1F-8EAEE34CB8C3

( Figs 1–3 )

Diagnosis (Female). Prodorsal ornamentation manifest complete network of cells; central cell without median lines; small rounded scapular tubercles located ahead of rear shield margin, ventral semi-annuali with simple round microtubercles and ornamentation on coxae I–II with granules; tarsal empodium deeply divided (7 rayed on each side).

Description

Female (n = 14) Body fusiform ( Figures 1D , 2 DL), 260 (240–280, including gnathosoma), 78 (69–85) wide, 68 (65–70) thick; dark yellow in life. Gnathosoma, 58 (56–60), projecting downwards, cheliceral stylets 64 (62–68), pedipalp coxal setae (ep) 2 (1–2), dorsal pedipalp genual setae (d) 3 (3–4), palp tarsal ventral setae (v) 5 (4–5). Prodorsal shield ( Figure 3 AD), 35 (33–38) long, 61 (58–64) wide, frontal lobe absent; prodorsal ornamentation manifest complete network of cells; three rows of cells: 12 cells (six cells on each side) in anterior row, six cells (three cells on each side) at center row, two cells in posterior row. A central cell without median lines, median line connected with admedian and submedian lines by transverse lines at the anterior of 1/3 of prodorsal shield, small rounded scapular tubercles located ahead of rear shield margin, (sc tubercle) 27 (24–27) apart; scapular setae (sc) absent. Coxigenital region ( Figure 3 GF), with 6 (5–6) semiannuli between coxae and genitalia, anterolateral setae on coxisternum І (1b) absent; coxae I and II both with granules/ ornaments, proximal setae on coxisternum І (1a) 14 (15–18), 6 (5–6) apart; proximal setae on coxisternum ІІ (2a) 45 (41–50), 24 (23–26) apart. Prosternal apodeme 5 (4–6). Leg І ( Figure 3L 1 ) 31 (30–33); length, femur 16 (15–18), basiventral femoral setae (bv) absent; genu absent; tibia 8 (5–6), paraxial tibial setae (l‘) absent, tarsus 7 (8–11), paraxial fastigial tarsal setae long, (ft‘) 39 (36–43), antaxial fastigial tarsal setae (ft‘‘) 43 (39–47); seta (u‘) 11 (9–12), tarsal empodium (em) 7 (6–8), deeply divided, 7 rayed on each side, tarsal solenidion (ω) 7 (6–8), knobbed. Leg ІІ ( Figure 3L 2 ), 29 (28–32), femur 16 (14–16), basiventral femoral setae (bv) absent; genu absent; tibia 5 (4–5); tarsus 8 (7–9), setae (ft‘) absent, setae (ft‘‘) 28 (26– 31) seta (u‘) 5 (5–8) tarsal empodium (e m) 8 (7–9), deeply divided, each seven rayed, tarsal solenidion (ω) 7 (6–8), knobbed ( Figure 3 EM). Opisthosoma dorsally with 68 (65–73) annuli simple ( Figure 2 DL); with three ridges, mid-dorsal ridge shorter than lateral ridges, ended in a wide furrow; ventrally with 78 (76–81) semiannuli, with small, rounded microtubercles; last 9–11 ventral semiannuli with elongated, linear micortubercles; lateral setae c 2 absent; setae d 31 (29–34), 50 (48–53) apart; on ventral semiannulus 29 (27–32); setae e 21 (19–24), 23 (21–25) apart; on ventral semiannulus 46 (44–49); setae f 31 (29–35), on 11th ventral semiannulus from rear, 25 (25–28) apart; accessory setae h 1 minute, setae h 2 50 (47–56) ( Figure 1V ). Genital coverflap: 24 (23–25), 28 (24–30) wide, genital seta (3a) 7 (6–8), 21 (19–22) apart; coverflap smooth but basal part with granules. Internal genitalia ( Figure 3 IG), Spermathecae ovoid, oriented posterolaterad; spermathecal tubes relatively short; transverse genital apodeme trapezoidal, distally folded.

Etymology. The name of the new species ( bahaensis ) refers to the name of the locality ‘‘Baha’’ from where the type specimens were collected.

Type material. Holotype female , and 13 paratypes female, Ficus carica L. ( Moraceae ), Al-Baha, Saudi Arabia, 20°3‘50.969“N, 41°28‘26.972“E, 19 October 2019, coll. Eid M. Khan.

Relation to the host plants. Vagrant on abaxial surface of leaf. No apparent damage symptoms to the host foliage were observed.

Remarks. Diptilomiopus bahaensis sp. nov., is morphologically close to the D. racemosae ( Chandrapatya and Boczek, 2001) by the presence of scapular setal position and central cells without median line. However, the new species differs from the later by the shape of ventral semi-annuali with microtubercles (simple rounded vs. spine like) and ornamentation on coxae II (with granules vs. without granules).

Figures

FIGURE 1. Diptilomiopus bahaensis sp. nov. Female: D. Dorsum; V. Venter, Scale bars: 10 µm.

FIGURE 2. Diptilomiopus bahaensis sp. nov. Female: DL. Dorso Lateral, Scale bars: 10 µm.

FIGURE 3. Diptilomiopus bahaensis sp. nov. Female: AD. prodorsal shield; CF. coxigenital area; EM. empodium; IG. internal genitalia; L1. leg І; L2. leg II; Scale bars: 5 µm for AD, CF, L1, L2; 2.5 µm for EM, and IG.