Aculops fenestratus, Navia, Denise & Flechtmann, Carlos H. W., 2007

Navia, Denise & Flechtmann, Carlos H. W., 2007, Three new species of Phyllocoptinae mites (Prostigmata: Eriophyidae) associated with ornamental plants in Brazil, Zootaxa 1386, pp. 39-46 : 41-42

Aculops fenestratus n. sp. ( Fig. 2 )

( Eriophyidae , Phyllocoptinae , Anthocoptini )

Diagnosis — The faint prodorsal shield ornamentation resembling the elongate window of a minaret, the acuminate anterior shield lobe and the smooth dorsoopisthosomal annuli distinguish A. fenestratus .

Female (Measurements of holotype and range of 6 paratypes) — Body fusiform, 186 (181–205) long, 62 (54–62) wide. Gnathosoma projecting downwards, 20 (20–26) long; basal seta (ep) 3 (2–3) long; antapical seta 7 (5–7) long. Chelicerae 19 (18–20) long; oral stylets 13 (13–14) long. Prodorsal shield 35 (34–36) long, 49 (45–52) wide, subtriangular, design ornated with sinuous faint lines in the anterolateral region; and two admedian lines resembling the outline of an elongate minaret window. Scapular seta (sc) 43 (38–41) long, directed backwards, on tubercles placed on rear shield margin, 24 (20–24) apart. Frontal lobe apically pointed, 6 (5–7) long, 9 (8–9) wide. Legs with all setae present. Legs I 33 (30–34) long; femur 10 (9–11) long, femoral seta (bv) 19 (15–20) long; genu 5 (5–6) long, genual seta (l’’) 24 (22–24) long; tibia 7 (6–8) long, tibial seta (l’) 7 (6–8) long; tarsus 6 (6–7) long, lateral seta (ft’’) 23 (22–25) long, dorsal seta (ft’) 19 (19–20) long, unguinal seta (u’) 4 (4–5) long, solenidion 9 (9–10) long; empodium 7 (7–8) long, 6 (6–7)–rayed. Legs II 29 (28–30) long; femur 9 (8–10) long, bv 14 (13–17) long; genu 5 long, l’’ 12 (9–12) long; tibia 5 (5–6) long; tarsus 6 (5–6) long, ft’’ 22 (20–24) long, ft’ 7 (6–8) long, u’ 4 long, solenidion 9 (9–11) long; empodium 8 (7–8) long, 6 (6–7)–rayed. Coxae I ornated with sinuous faint lines and granules; coxae II smooth. Sternal line conspicuous, 7 (5–7) long. Coxal seta I (1b) 11 (11–13) long, 11 (11–13) apart; coxal seta II (1a) 21 (20–28) long, 10 (9–11) apart; coxal seta III (2a) 48 (44–48) long, 22 (20–24) apart; 4 (4–5) coxigenital semi annuli, smooth. Genitalia 22 (21–23) wide, 19 (13–19) long; epigynum with 12 longitudinal lines; genital seta (3a) 20 (19–20) long. Opisthosoma with 41 (38–41) dorsal annuli, smooth; ventrally with 64 (57–64) annuli, with microtubercles slightly elongate, placed on rear margin of annuli. Dorsal opisthosoma flattened. Lateral seta (c2) 33 (28–33) long, in line with 2 (2–5) ventral annulus. Ventral seta I (d) 53 (53–66) long, 37 (36–43) apart, 27 (20–29) microtubercles apart, on annulus 17–18 (15–18); ventral seta II (e) 21 (18–23) long, 21 (20–23) apart, 13 (11–14) microtubercles apart, on annulus 35 (31–35); ventral seta III (f) 28 (27–29) long, 20 (19–20) apart, 17 (13–17) microtubercles apart, on annulus 58 (51–58). Caudal seta (h2) 83 (83–98) long; accessory seta (h1) 3 (3–4) long.

Male (Measurements of 4 paratypes) — Smaller than female, 135–166 long, 45–60 wide. Gnathosoma 22–23 long; basal seta (ep) 2–3 long; antapical seta 5 long. Chelicerae 16–19 long; oral stylets 13 long. Prodorsal shield as in female, 33–36 long, 41–49 wide. Scapular seta (sc) 31–36 long, on tubercles 19–23 apart. Frontal lobe 5–8 long, base 8–10 wide. Legs as in female. Leg I 30–32 long; femur 8–10 long, femoral seta (bv) 14–20 long; genu 4–5 long, genual seta (l’’) 17–22 long; tibia 6–8 long, tibial seta (l’) 5–8 long; tarsus 7 long, lateral seta (ft’’) 19–23 long, dorsal seta (ft’) 14–18 long, unguinal seta (u’) 4 long, solenidion 7–10 long; empodium 6–7 long, 6–7–rayed. Legs II 26–30 long; femur 8–10 long, bv 17–24 long; genu 4–5 long, l’’ 10 long; tibia 4–6 long; tarsus 6 long, ft’’ 19–21 long, ft’ 5–8 long, u’ 4 long, solenidion 7–10 long; empodium 6– 7 long, 6–rayed. Coxae as in female. Sternal line 5–7 long. Coxal seta I (1b) 8–11 long, 10–11 apart; coxal seta II (1a) 20–23 long, 7–9 apart; coxal seta III (2a) 37–45 long, 19–22 apart; 4–6 coxigenital semi annuli, microtuberculated. Genitalia 13–17 wide, 11–13 long, with granules in the lateroposterior area, papillae as figured; genital seta (3a) 11–15 long. Opisthosoma as in female, with 31–35 dorsal annuli; 41–51 ventral annuli. Lateral seta (c2) 27–31 long, on line with annulus 1–2. Ventral seta I (d) 47–50 long, 28–42 apart, 23– 26 microtubercles apart, on annulus 11–15; ventral seta II (e) 14–19 long, 13–22 apart, 10–14 microtubercles apart, on annulus 22–29; ventral seta III (f) 20–27 long, 16–18 apart, 14–19 microtubercles apart, on annulus 36–46. Caudal seta (h2) 70–84 long; accessory seta (h1) 3–4 long.

Type material — Female holotype, 36 female and 13 male paratypes, from Delonix regia (Bojer ex. Hook.) Raf. ( Fabaceae ), Brasília, Distrito Federal, Brazil, 15°47'S and 47°55'W, 6th September 2005, collected by L. Calvoso Miranda, on 10 slides, in the collection of Laboratório de Quarentena Vegetal, Embrapa Recursos Genéticos e Biotecnologia, Brasilia, DF, Brazil and paratypes in the collection of Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Universidade de São Paulo, ESALQ, Piracicaba, São Paulo, Brazil.

Relation to host — Mites are vagrants, causing no apparent damage.

Etymology — The specific designation, fenestratus , is derived from the Latin fenestra, window, and refers to the prodorsal shield central design.

Remarks — The pointed anterior lobe of the n. sp. resembles that of several other eriophyids in the genus Aculops Keifer, 1966 , such as Aculops bolusanthi Meyer & Ueckermann, 1990 and Aculpos acaciae ( Ryke & Meyer, 1960). However, the new species is strikingly distinct in the coxal ornamentation, being ornamented on coxae I and smooth on coxae II. In the other known species both coxae are either ornamented or smooth.

Figures

FIGURE 2. Aculops fenestratus n. sp. D — Dorsal habitus of female. V — Ventral habitus of female. L — Lateral habitus of female. M — Coxigenital region of male. L 1 — Leg I. L 2 — Leg II. E — Empodium (enlarged).