Aceria onosmae, Kiedrowicz, Agnieszka, Denizhan, Evsel, Bromberek, Klaudia, Szydło, Wiktoria & Skoracka, Anna, 2016

Kiedrowicz, Agnieszka, Denizhan, Evsel, Bromberek, Klaudia, Szydło, Wiktoria & Skoracka, Anna, 2016, Eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from Turkey: description of five new species, Zootaxa 4066 (3), pp. 255-270 : 259-261

Aceria onosmae n. sp. Denizhan & Szydło

( Figs. 3 & 4 )

Description. FEMALE (n=10). Body vermiform, 290 (215–293); 74 (70–72) wide. Gnathosoma curved downwards, 24 (21–29), dorsal pedipalpal genual seta d 5 (4–6), palpcoxal seta ep 2 (2), cheliceral stylets 21 (21– 31). Prodorsal shield rhomboid-shaped, 38 (35–40), 47 (45–47) wide; ornamentation: with median line present on posterior 1/3, admedian lines present on posterior 2/3, first submedian lines present on posterior 1/3, parallel to lateral margin and curved towards centre forming lines above dorsal tubercles. Tubercles of setae sc on rear shield margin, 19 (19–22) apart, setae sc 27 (20–27). Leg I 35 (29–35); femur 8 (8–9), genu 6 (5–6), tibia 7 (5–7); tarsus 8 (5–8); solenidion tapered, 20 (16–20); empodium 6 (5–9), simple, bilaterally symmetrical, with 5 (5) paired rays; femoral setae bv 12 (12–14), genual setae l′′ 32 (29–32), tibial setae l ′ 10 (8–10), tarsal setae ft ′ 24 (20–24), setae ft′′ 28 (27–29), setae u ′ 6 (5–6). Leg II 39 (32–39); femur 9 (9–10), genu 5 (4–5), tibia 4 (4–6); tarsus 5 (5–8); solenidion tapered 19 (16–19); empodium 9 (6–9), simple, bilaterally symmetrical, with 5 (5) paired rays; femoral setae bv 15 (15–17), genual setae l′′ 12 (12–14), tarsal setae ft ′ 15 (12–15), setae ft′′ 30 (27–30), setae u ′ 7 (6–7).

Coxal plates with dashes; suboral plate with dots. Setae 1b 12 (12–18), 10 (10–12) apart; setae 1a 21 (20–30), 7 (6– 7) apart; setae 2a 37 (32–37), 21 (20–27) apart; sternum 8 (5–9). Opisthosoma with 58 (47–62) annuli with triangular pointed microtubercles; dorsal microtubercles larger, ventral tiny; microtubercles elongated on the posterior 2 (1–3) annuli. Setae c2 36 (36–40), on 3rd (2nd to 4th) annulus; setae d 50 (42–56), on 15th (14th to 18th) annulus; setae e 23 (19–24), on 26th (26th to 34th) annulus; setae f 32 (24–34), on 54th (45th to 56th) annulus, 6th (6th) annulus from rear. Setae h1 4 (4–5); setae h2 43 (36–44). External genitalia 20 (20–25), 23 (23– 26) wide, genital coverflap with 6 (6–8) striae; setae 3a 20 (17–22), 20 (18–21) apart.

Male, nymph and larva. Not found.

Type host plant. Onosma isauricum Boiss. et Heldr. (Boraginaceae) .

Relation to host plant. The mites were vagrant on leaves.

Type locality. Gevaş in Van, Turkey (38°17'52"N, 43°06'16"E), 1040 m above sea level, coll. E. Denizhan, 16 June 2008.

Type material. Holotype female [3961(1)] and 6 female paratypes [3953–3958] deposited in the collection of the Faculty of Biology, Adam Mickiewicz University, Poznań, Poland and 3 female paratypes [3963–3965] deposited in the collection of the Department of Applied Entomology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences – SGGW, Warsaw, Poland.

Etymology. The specific mite name (adjective in the genitive case, feminine) is derived from the generic name of the host plant.

Differential diagnosis. The new species, A. onosmae , can be differentiated from other similar species such as Aceria echii ( Canestrini, 1891) on Echium vulgare L. ( Boraginaceae ) in Italy and Aceria eutricha ( Nalepa, 1894) on Lappula squarrosa (Ratz.) Dumort. (Boraginaceae) in Austria by having very long solenidia on both legs (ca. 20). Also in contrast, the new species has pointed dorsal and ventral microtubercles. The prodorsal shield ornamentation of A. onosmae n. sp. shows that all lines are present on the rear part of the shield. In A. echii and A. eutricha , the solenidia are at least twice shorter and there are less microtubercles on the annuli and these are smaller compared to the new species. In A. echii , the ornamentation occurs on the whole shield in contrast to the new species. The prodorsal shield is smooth in A. eutricha . Both A. echii and A. eutricha cause flower deformation and erinea whereas A. onosmae sp. n. was observed to have a vagrant lifestyle.

Figures

FIGURE 3. Semi-schematic line drawings of Aceria onosmae n. sp., female: L. Lateral view; AD. Prodorsal shield; em. Empodium; s. solenidion; CG. Coxigenital region; IG. Internal genitalia. Scale bar = 50 Μm for L; 20 Μm for AD and CG; 25 Μm for IG; 8 Μm for em and s.

FIGURE 4. Micrographs of Aceria onosmae n. sp., female, as viewed under phase contrast: 1. Lateral view; 2. Ventral view; 3. Dorsal view. Scale bar = 20 Μm for 1 and 3; 10 Μm for 2.