Aculodes calamaabditus, Skoracka, 2003
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publication ID |
https://doi.org/ 10.5281/zenodo.12587220 |
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persistent identifier |
https://treatment.plazi.org/id/DE4187A6-FF97-FFE1-FDFE-FD63FC612486 |
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treatment provided by |
Felipe |
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scientific name |
Aculodes calamaabditus |
| status |
sp. nov. |
Aculodes calamaabditus sp. n.
( Figs 1–4 View Fig View Fig View Fig View Fig )
Female ( Figs 1–2 View Fig View Fig ) (holotype and 14 paratypes): Body slightly spindleform. Body length 274 (195–287); width 63 (52–71). Gnathosoma 27 (25–30) long; dorsal pedipalpal genual setae d 10 (7–10) long; v setae (sensory peg) 3 (2–4) long; ep setae 4 (3–4) long; cheliceral stylets 22 (21–27) long. Prodorsal shield elongate-triangular, with a pointed frontal lobe over the gnathosoma; 48 (43–51) long, 46 (41–47) wide. Sculpture of prodorsal shield: median line present on rear half of shield; admedian lines from anterior lobe base diverging to rear margin, slightly concave in the middle; submedian lines with conical microtubercles, from anterior 1/4 running toward outer tubercles of sc setae, almost subparallel to lateral margin of shield; arched lines in front of the tubercles of sc setae present. Numerous, minute, conical microtubercles present on surface near shield. Tubercles of setae sc located on rear margin of shield, (3–5) long, (3–4) wide, 30 (25–32) apart; setae sc 21 (12–28) long, projecting to rear.
Leg I 39 (35–49) long; femur 10 (9–12) long, with seta bv 15 (11–16) long; position of seta bv 4 (4–6) from ventral, proximal margin of femur; genu 6 (5–7) long, with seta l” 25 (18–29) long, position of seta l” 4 (3–4) from dorsal, proximal margin of genu; tibia 7 (6–9) long, with seta l’ 11 (8–11) long; position of seta l’ 4 (4–5) from ventral, proximal margin of tibia. Tarsus 9 (7–9) long, with three setae: ft” (23–29); ft’ 19 (19–25) long, u’ 10 (5–9) long; position of setae ft” and ft’ 3 (2–3) from proximal margin of tarsus; position of seta u’ 5 (4–6) from proximal margin of tarsus. Tarsal solenidion w 9 (8–10) long; tarsal empodium simple, 7 (7–8) – rayed, symmetrical, 10 (9–11) long. Leg II 37 (30–45) long; femur 10 (9–13) long, with seta bv 17 (15–22) long; position of seta bv 5 (4–6) from ventral, proximal margin of femur; genu 5 (4–6) long, with seta l” 16 (12–19) long; position of seta l” 3 (3) from dorsal, proximal margin of genu; tibia 6 (5–8) long. Tarsus 9 (7–9) long, with three setae: ft” 26 (23–27) long, ft’ 14 (8–14), u’ 9 (5–8) long; position of setae ft” and ft’ 2 (2–3) from proximal margin of tarsus; position of seta u’ 5 (4–6) from proximal margin of tarsus. Tarsal solenidion w 10 (7–10) long; tarsal empodium 7 (7–8)-rayed, symmetrical, 10 (9–12) long.
Coxae with a pattern of numerous long lines with minute, conical microtubercles; on coxae I lines parallel to the length of coxae, on coxae II lines perpendicular to the length of coxae; singular, conical microtubercles and short lines also present. Sternal line slender. Setae 1b 10 (10–13) apart, 10 (10–11) long; setae 1a 10 (7–10) apart, 24 (20–29) long; setae 2a 26 (20–29) apart, (48–60) long; distance between setae 1b and 1a 9 (8–11), distance between setae 1a and 2a 10 (8–10).
Opisthosoma with 62 (59–79) dorsal annuli, 63 (67–76) ventral annuli, 6 (4–7) coxigenital annuli. Annuli with microtubercles; dorsal microtubercles numerous, minute, set along annuli margins, on telosomal annuli conical; ventral microtubercles not as numerous as dorsal, conical, but with blunted top, set along annuli margins, on telosomal annuli elongated.
Setae c2 (38–41) long, located on 9th (7th–10th) ventral annulus from coxae II; tubercles c2 53 (40–57) apart; ventral setae d (62–74) long, located on 22nd (19th–26th) ventral annulus; tubercles d 35 (25–43) apart; setae e 45 (38–43) long, located on 37th (39th–47th) ventral annulus; tubercles e 18 (11–18) apart; setae f 27 (27–35) long, located on 59th (63rd-72nd) ventral annulus, 5th (5th) annulus from rear; tubercles f 23 (19–24) apart.
Setae h1 4 (4–6) long, 7 (6–8) apart; setae h2 (73–88) long, 10 (9–11) apart; distance between h1 and h2 – 2 (2–3).
Genital parts 17 (15–18) long, 22 (19–28) wide, genital coverflap with 13 (9–14) longitudinal ribs; setae 3a 25 (23–35) long, 14 (12–18) apart.
Male ( Fig. 3 View Fig ) (n=3): Body spindleform. Body length 185; width 47. Gnathosoma 24 long; setae d 7–8 long; v setae (sensory peg) 3; cheliceral stylets 23–26 long. Prodorsal shield triangular, 40 long, 41 wide, with long, pointed lobe over the gnathosoma. Sculpture of prodorsal shield: like that of female, with one exception: median line present on the rear 1/3. Tubercles of setae sc located on rear margin of shield, 3 long, 3 wide, 23–24 apart; setae sc 14 long, projecting to rear.
Leg I 29–30 long; femur 8–10 long, with seta bv 10–12 long, 3–4 from proximal margin of femur; genu 4–5 long, with seta l” 20–21 long, 2–3 from proximal margin of genu; tibia 5–6 long, with seta l’ 8–9 long, 3–4 from proximal margin of tibia. Tarsus 6–7 long, with three setae: ft” 21–24, ft’ 18–20 long, both 2–3 from proximal margin of tarsus; u’ 6–7 long, 3–4 from proximal margin of tarsus. Tarsal solenidion w 7–10 long; tarsal empodium simple, 6–7-rayed, symmetrical, 8–10 long. Leg II 27–29 long; femur 9–10 long, with seta bv 12–17 long; 4 from proximal margin of femur; genu 4–5 long, with seta l” 11–14 long, 2–3 from proximal margin of genu; tibia 4–5 long. Tarsus 6–7 long, with three setae: ft” 20–22 long, ft’ 10–12 long, both 2–3 from proximal margin of tarsus; u’ 5–7 long, 4 from proximal margin of tarsus. Tarsal solenidion w 8 long; tarsal empodium 6-rayed, symmetrical, 9–10 long.
Coxae with a pattern similar to that of female. Setae 1b 8 apart, 8 long; setae 1a 6–7 apart; setae 2a 18–20 apart; distance between setae 1b and 1a 7–8, distance between setae 1a and 2a 6–7.
Opisthosoma with 56–68 dorsal annuli, 62–68 ventral annuli, 5 coxigenital annuli. Annuli with microtubercles; dorsal microtubercles numerous, minute, beadlike, set along annuli margins; ventral microtubercles minute, conical and acute, not ahead or slightly ahead of annuli margins, on telosomal annuli elongated.
Setae c2 27–38 long, located on 6th–7th ventral annulus from coxae II; tubercles c2 39 apart; ventral setae d 29 long, located on 17th–19th ventral annulus; tubercles d 24 apart; setae e 40 long, located on 34th–36th ventral annulus; tubercles e 11 apart; setae f 22–29 long, located on 58th–64th ventral annulus, 5th annulus from rear; tubercles f 18 apart.
Setae h1 4 long, 5 apart; setae h2 10 apart; distance between h1 and h2 – 2.
Genital parts 15–16 long, 19–20 wide; surface near the genital parts with lines and minute, beadlike microtubercles; setae 3a 16–25 long, 13–17 apart.
Nymph ( Fig. 4 View Fig ) (n=2): Body slightly spindleform. Body length 202–237; width 61. Gnathosoma 24–27 long; setae d 7 long; v setae (sensory peg) 2–3; cheliceral stylets 22–25 long. Prodorsal shield triangularly-oval, 39–45 long, 40 wide, with a little, subrounded lobe over the gnathosoma. Sculpture of prodorsal shield: median line absent; admedian and submedian lines like those in female. Surface near the shield with numerous microtubercles. Tubercles of setae sc located on rear margin of shield, 3 long, 3 wide, 21 apart; setae sc 12–17 long, projecting to rear.
Leg I 36 long; femur 9 long; genu 4–5 long, with seta l” 20 long, 2–3 from proximal margin of genu; tibia 5 long, with seta l’ 6–8 long, 3 from proximal margin of tibia. Tarsus 5–7 long, seta u’ 5 long, 3–4 from proximal margin of tarsus. Tarsal solenidion w 6–7 long; tarsal empodium simple, 5–6-rayed, symmetrical, 7–9 long. Leg II 25–35 long; femur 7 long, with seta bv 11–12 long; 3–4 from proximal margin of femur; genu 4 long, with seta l” 10–11 long, 2 from proximal margin of genu; tibia 4–5 long. Tarsus 5–6 long, with three setae: ft” 19–22 long, ft’ 10 long, both 2 from proximal margin of tarsus; u’ 5 long, 3 from proximal margin of tarsus. Tarsal solenidion w 7–8 long; tarsal empodium 5–6-rayed, symmetrical, 8–9 long.
Setae 1b 8 apart; setae 1a 9 apart; setae 2a 27 apart; distance between setae 1b and 1a 8, distance between setae 1a and 2a 9.
Opisthosoma with 45–50 dorsal annuli, 46–47 ventral annuli, 10 coxigenital annuli. Annuli with microtubercles; dorsal microtubercles minute, beadlike, set along annuli margins, on telosomal annuli more numerous; ventral microtubercles minute, conical, less numerous than dorsal, set along annuli margins, on telosomal annuli elongated.
Setae c2 18–27 long, located on 6th–9th ventral annulus from coxae II; tubercles c2 53 apart; ventral setae d 18 long, located on 16th–17th ventral annulus; tubercles d 31 apart; setae e 17 long, located on 27th–29th ventral annulus; tubercles e 15 apart; setae f 19 long, located on 42nd–43rd ventral annulus, 5th annulus from rear; tubercles f 17 apart.
Setae h1 3–4 long, 6 apart; setae h2 9 apart; distance between h1 and h2 – 2.
Setae 3a 11–20 long, 7–10 apart.
Larva (n=1): Body vermiform. Body length 133; width 44. Cheliceral stylets 18 long. Leg I: femur 5 long; genu 3 long, tarsal solenidion w 7 long; tarsal empodium simple, 5-rayed, symmetrical, 6 long. Leg II: tarsal solenidion w 6 long; tarsal empodium 5-rayed, symmetrical, 6 long. Setae c2 15 long, setae f 14 long; setae h1 3 long.
Etymology: the specific designation is derived from the combination of Calamagrostis – genericname of the host plant, and abditus (Latin.) – hide; because specimens of this species were found hidden in deep rows on leaf-surfaces.
Host plant: Calamagrostis epigeios (L.) ROTH. ( Poaceae ). Relation to host plant: mites are vagrants on the upper leaf surface, often hiding in rows. Type locality: Western Poland, Głogów – Leśna Dolina (16°12’E, 51°44’N), path in forest; 23.04.200 and 04.04.1999; leg. A. Skoracka, also material from the other locality was used: Modła near Głogów (16°06’E, 51°36’N), pine-wood border, 26.07.1998; leg. A. Skoracka.
Material examined: holotype female ( ACU464 F6), 14 female paratypes ( ACU210 F1- ACU210 F5, ACU65F7- ACU65 F15), 3 male paratypes ( ACU65 M1- ACU65 M3), 3 nymph paratypes ( ACU464 N1, ACU65N2- ACU65 N3), 1 larva paratype ( ACU65 L1) .
Diagnosis: Aculodes calamaabditus sp. n. is most similar to A. agropyronis ( KEIFER, 1960) ( Agropyron smithi , Poaceae , Texas, USA) ( KEIFER 1960) by the shape and dimensions of prodorsal shield, length of median line, number of dorsal annuli (more than 50), and length of opisthosomal d setae (more than 62 µm in length). Aculodes calamaabditus can be distinguished from A. agropyronis by the absence of II submedian lines, location of ventral microtubercles and the appearance of the sternal line. In A. agropyronis submedian lines I and II are present, ventral microtubercles are set ahead of margins of annuli, and the sternal line is broad and distinct. In females of the new species only submedian line I is present, ventral microtubercles are set along margins of annuli, and the sternal line is not clearly distinguishable. Those two species differ also in the length of sc setae (46 µm in A. agropyronis , less than 30 µm in A. calamaabditus ), and pedipalpal d setae (4 µm in A. agropyronis , 7 µm or more in A. calamaabditus ).
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