Drymobatoides harennaensis Ermilov, 2024

Drymobatoides harennaensis Ermilov n. sp.

Zoobank: EBEE2D4C-6A65-40E5-93E0-CBFA161CC94B

( Figures 4 View Figure 4 , 5 View Figure 5 )

Type material — Holotype (male) and three paratypes (one male and two females): Ethiopia, Oromia region, Bale Zone, Bale Mountains National Park, 06°46′39.5″N, 039°44′42″E, 3241 m a.s.l., slope to the Harenna Forest , forest with Erica arborea and Hagenia abyssinica , litter under H. abyssinica , 26.X.2023 (L.B. Rybalov). GoogleMaps

The holotype is deposited in the collection of the Senckenberg Museum of Natural History, Görlitz, Germany ; three paratypes are in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia. All specimens are preserved in 70% solution of ethanol with a drop of glycerol.

Diagnosis — Body length: 975–1080. Lamella without cusp. Rostral, lamellar, interlamellar, and bothridial setae long, setiform, barbed; in˃bs˃le˃ro ; le posteromedial to the lamella end. About 40 pairs of small porose areas. Custodium minute, triangular. Five pairs of genital setae. Marginal porose area represented by numerous porose areas. Leg femur IV with slight emarginate ventrodistal part.

Description — Measurements. Body length: 1065 (holotype), 975 (male paratype), 1065, 1080 (female paratypes); body width (level of pteromorphs): 855 (holotype), 825 (male paratype), 825, 855 (female paratypes); body width ventral plate: 750 (holotype), 750 (male paratype), 735, 780 (female paratypes).

Integument — Body color brown. Body surface mostly indistinctly microfoveolate (visible under high magnification, × 1000).

Prodorsum ( Figs 4 View Figure 4 (a, b, e)) — Rostrum slightly protruding, rounded. Lamella about 1/2 length of prodorsum, without cusp; prolamella, translamella and sublamella absent; tutorium slightly developed, short, lineate. Sublamellar porose area oval (34–37 × 24–26) oval. Rostral (146–154), lamellar (187–199), interlamellar (330–352), and bothridial (255–277) setae setiform, barbed; le posteromedial to the lamella end; exobothridial seta (26–30) setiform, roughened. Dorsosejugal porose area not observable.

Notogaster ( Figs 4 View Figure 4 (a, d, e)) — Dorsosejugal suture slightly convex medially. Pteromorph broadly rounded laterally. About 40 pairs of small (diameter from 4 up to 19) porose areas. All notogastral setae represented by alveoli. Opisthonotal gland opening and all lyrifissures distinct.

Gnathosoma ( Figs 5 View Figure 5 (a–c)) — Subcapitulum size: 229–244 × 180–191; subcapitular setae (a:

view. Scale bars 20 μm (b), 50 μm (a, c), 100 μm (d–g).

49–56; m: 71–75; h: 82–86) setiform, barbed; both adoral setae (26–30) setiform, shortly and densely ciliate. Palp length: 124–131; setation: 0–2–1–3–9(+ω); solenidion medium-sized (1/2

of tarsus), slightly thickened, rounded distally, attached acm to ; postpalpal seta (7) spiniform,

roughened. Chelicera length: 229–244; setae (cha: 82–90; chb: 56–64) setiform, barbed.

Epimeral and lateral podosomal regions ( Figs 4 View Figure 4 (c, e)) — Epimeral setal formula: 3–

1–3–3; all setae (1a, 2a, 3a, 4c: 49–60; 1b, 1c, 3b, 3c 4a, 4b: 82–90) setiform, slightly barbed. Humeral porose areas Am and Ah elongate oval, slightly visible. Custodium minute,

triangular. Discidium triangular, rounded distally. Circumpedal carina long, distally connected to custodium.

Anogenital region ( Figs 4 View Figure 4 (c–e)) — Anogenital formula: 5–1–2–3; genital (49–60), aggenital

(49–60), anal (41–49), and adanal (56–60) setae setiform, slightly barbed. Adanal lyrifissure parallel and close to anal plate. Marginal porose area represented by numerous small porose areas.

Legs ( Figs 5 View Figure 5 (d–g)) — Median claw thicker than lateral claws; all claw slightly barbed on dorsal side; lateral claw without ventrodistal tooth. Femur IV with slight emargination ventrodistally. Dorsoparaxial porose area on trochanters III, IV and on femora I–IV as well as ventrodistal porose area on tibia I–IV and proximoventral porose area on tarsi I–IV and dorsal porose area on tarsi I, II well visible. Formulas of leg setation and solenidia: I (1–5–3–4–20)

[1–2–2], II (1–5–3–4–15) [1–1–2], III (2–3–1–3–15) [1–1–0], IV (1–2–2–3–12) [0–1–0];

homology of setae and solenidia indicated in Table 2 ; seta s eupathidial on tarsus I, located between paired setae u and a ; solenidia ω 1 on tarsus I, ω 1, ω 2 on tarsus II and σ on genu III slightly thickened, rounded distally versus others solenidia setiform.

Remarks — In having five pairs of genital setae, D. harennaensis Ermilov n. sp. is similar to D. boronganensis Ermilov and Corpuz-Raros, 2017 from the Philippines and D. malabaricus

( Adolph and Haq, 1982) from India. However, the new species can be distinguished from both mentioned species by larger body size (length: 975–1080 versus 664–747 in D. boronganensis ;

737–767 in D. malabaricus ), and the location of the lamellar seta (posteromedial to lamella end versus on lamellar end).

Etymology — The species name harennaensis refers to the place of origin, Harenna Forest.