Phyllocoptes euonymusae, Song & Xue & Hong, 2006

Song, Zi-Wei, Xue, Xiao-Feng & Hong, Xiao-Yue, 2006, A review of Chinese Phyllocoptes Nalepa (Acari: Eriophyoidea: Eriophyidae: Phyllocoptinae) with descriptions of five new species, Zootaxa 1167 (1), pp. 31-45 : 34-36

Phyllocoptes euonymusae sp. nov.

( Fig. 1 )

Description

FEMALE: (n = 5) Body fusiform, 204 (185–213) long, 61 (58–63) wide, 60 (58–63) thick; light yellow in color. Gnathosoma 33 (30–35), projecting obliquely down. Prodorsal shield 43 (42–45) long, 50 (48–52) wide; prodorsal shield with elongate frontal lobe; only admedian lines present, subparallel, extending from near anterior margin to between scapular tubercles. Scapular tubercles ahead of rear margin, 22 (22–23) apart, scapular setae sc 13 (13–14) projecting antero­medially. Prosternal apodeme present. Coxal area with granules; setae 1b on anteromedial coxisternum I, near approximation of forecoxae 7 (7–8), setae 1a on basal coxisternum I 24 (22–27), setae 2a on coxisternum II 41 (36–43). Legs I 29 (26–31) long, femur 8 (7–8), basiventral femoral setae bv 10 (9–10); genu 5 (4–5) long, antaxial genual setae l’’ 25 (25–26) long; tibia 8 (7–8), paraxial tibial setae l’ 5 (4–5), setae located 1/3 from dorsal base; tarsus 5 (5–6) long; tarsal empodium simple, 4–rayed, tarsal solenidion T knobbed. Legs II 26 (24–29) long, femur 7 (7–8), basiventral femoral setae bv 6 (6–7); genu 4 (4–5) long, antaxial genual setae l’’ 7 (7–8) long; tibia 4 (4–5); tarsus 5 (5–6) long; tarsal empodium simple, 4­rayed, tarsal solenidion T knobbed. Dorsal opisthosoma with 40 (39–42) annuli, with elliptical microtubercles on rear annular margins, ventrally with 51 (50–53) microtuberculate annuli. Setae c2 35 (32–38) on ventral annulus 10 (10–12); setae d 39 (32–46) on ventral annulus 18 (17–20); setae e 12 (11–14) on ventral annulus 34 (33–36); setae f 30 (28–32) on 6th ventral annulus from rear. Setae h1 3 (3–4) long. Female genitalia 15 (14–15) long, 23 (22–25) wide, coverflap with 12 longitudinal ridges and granules at base, setae 3a on coxisternum III 11 (10–12) long.

MALE: Unknown.

Material examined Holotype, female, from Euonymus alatus (Thunb.) Sieb. (Celastraceae) , Taibai Mountain, Mei County, Shaanxi Province, China, 34°07’50”N, 107°53’58”E, 2 September 2004, collected by Z.­W. Song and X.­F. Xue. Paratypes, 4 females, with the same date as holotype.

Relation to host Mites are vagrant on the undersurface of leaves, causing no apparent damage.

Etymology

The specific designation euonymusae is from the generic name of the type host plant, Euonymus .

Note

This species is similar to Phyllocoptes acanthopanacis Kuang, 1991 , but can be differentiated by the longer frontal lobe (shorter and broader in acanthopanacis ), more distinctive prodosal shield pattern in acanthopanacis , dorsal annuli with elliptical microtubercles on rear annular margins (with minute round microtubercles in acanthopanacis ), female genital coverflap with 12 longitudinal ridges and basal granules (with 8–10 longitudinal ridges and smooth base in acanthopanacis ).

Figures

FIGURE 1. Phyllocoptes euonymusae sp. nov. A, dorsal view of female; B, coxae and female genitalia; C, legs I and II; D, lateral aspect of female; E, tarsal empodium.