Paracolomerus fopingacer, Xue & Song & Hong, 2011

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2011, Three new species of Cecidophyinae (Acari: Eriophyidae) from China, Journal of Natural History 45 (19 - 20), pp. 1199-1211 : 1207-1210

Paracolomerus fopingacer sp. nov.

( Figures 6 , 7 )

Female

Body vermiform, 243 (202–255), 72 (70–73) wide, 70 (68–72) thick; light yellow. Gnathosoma 31 (30 – 33), projecting obliquely down, pedipalp coxal seta (ep) 3 (2–3), dorsal pedipalp genual seta (d) 8 (8–9), cheliceral stylets 25 (25–26). Prodorsal shield 40 (40–41), 42 (40–43) wide, with many granules at lateral; anterior shield lobe acuminate; median line present for half of prodorsal shield base, admedian and submedian lines incomplete and parallel. Scapular tubercles on rear shield margin, 36 (35–37) apart, scapular setae (sc) 39 (38–40), projecting posterior. Coxal plates with curved lines, anterolateral setae on coxisternum I (1b) 9 (8–10), 13 (12–13) apart, proximal setae on coxisternum I (1a) 20 (18–23), 15 (14–15) apart, proximal setae on coxisternum II (2a) 41 (40–42), 27 (26–27) apart. Prosternal apodeme absent. Legs with usual series of setae. Leg I 30 (28–32), femur 9 (9–10), basiventral femoral seta (bv) 11 (10–12); genu 5 (4–5), antaxial genual seta (l ́́) 25 (22–28); tibia 6 (5–6), paraxial tibial seta (ĺ) 10 (9–11), located at centre; tarsus 6 (5–6), paraxial, fastigial, tarsal seta ft́ 18 (18–20), antaxial, fastigial, tarsal seta ft ́́ 20 (19–20), paraxial, unguinal, tarsal seta ú 4 (4–5); tarsal empodium (em) 5 (5–6), simple, six-rayed, tarsal solenidion (ω) 6 (6–7), rod-like. Leg II 29 (28–30), femur 8 (7–8), basiventral femoral seta (bv) 10 (10–11); genu 4 (4–5), antaxial genual seta (l ́́) 10 (8–11); tibia 5 (4–5); tarsus 6 (5–6), paraxial, fastigial, tarsal seta ft́ 8 (8–9), antaxial, fastigial, tarsal seta ft ́́ 20 (20–22), paraxial, unguinal, tarsal seta ú 4 (4–5); tarsal empodium (em) 5 (5–6), simple, six-rayed, tarsal solenidion (ω) 6 (5–6), rod-like. Opisthosoma dorsally with 56 (54–57) annuli, with elliptical microtubercles on rear annular margin, ventrally with 60 (58–63) annuli, with elliptical microtubercles on rear annular margin. Setae c2 20 (19–22) on ventral annulus 11 (11–13), 65 (64–65) apart; setae d 48 (47–49) on ventral annulus 20 (20–22), 42 (42–43) apart; setae e 36 (34–37) on ventral annulus 31 (31–33), 20 (19–20) apart, setae f 25 (24–25) on eighth ventral annulus from rear, 27 (26–27) apart. Setae h1 absent, h2 56 (56–63). Female genitalia 16 (15–16), 25 (24–25) wide, coverflap with two rows of ridges, the upper one with eight longitudinal ridges, the other one with 12 longitudinal ridges, proximal setae on coxisternum III (3a) 10 (8–11), 16 (15–16) apart.

Male

Unknown.

Type material

Holotype, female (slide number NJAUAcariEri279, marked Holotype), from Acer sp. L. ( Aceraceae ), Foping County, Hanzhong City, Shaanxi Province, P.R. China, 33 ◦30́48 ́́ N, 107 ◦58́52 ́́ E, elevation 842 m, 5 September 2004, coll. Xiao-Feng Xue and Zi-Wei Song. Paratypes, five females (slide number NJAUAcariEri279), with the same data as holotype.

Relation to host

Vagrant on leaf surface. No damage to the host was observed.

Etymology

The specific designation fopingacer is combined with foping (the name of collection location) and acer (the generic name of host plant).

Differential diagnosis

This species is similar to P. casimiroae Keifer, 1975 (from Casimiroa edulis ), but can be differentiated from the latter by setae h1 absent (setae h1 present in P. casimiroae ), female genital coverflap with two rows of ridges (coverflap lacking ridges in P. casimiroae ), median, admedian and submedian lines parallel (shield design network in P. casimiroae ), and empodium six-rayed (empodium five-rayed in P. casimiroae ).

Figures

Figure 6. Paracolomerus fopingacer sp. nov. D, dorsal view of female; CG, coxae and female genitalia; L1, leg I; L2, leg II.

Figure 7. Paracolomerus fopingacer sp. nov. LM, lateral view of female; LO, lateral microtubercles; em, empodium.