Epitrimerus amygdali, Xue, Xiao-Feng & Hong, Xiao-Yue, 2005

Xue, Xiao-Feng & Hong, Xiao-Yue, 2005, A new genus and eight new species of Phyllocoptini (Acari: Eriophyidae: Phyllocoptinae) from China, Zootaxa 1039, pp. 1-17 : 12

Epitrimerus amygdali n. sp. ( Fig. 7 )

Female: (n = 13) Body fusiform, 198 long, 72 wide, 25 thick; light yellow in color. Gnathosoma 16, projecting obliquely down. Prodorsal shield 50 long, 63 wide; prodorsal shield with frontal lobe and granules laterally; admedian lines connected near rear margin, submedians incomplete. Dorsal tubercles ahead of rear margin, 19 apart, scapular setae (sc) 7 projecting center. Sternal line present. Coxal area with short lines; anterolateral setae on coxisternum I (1b) 5, proximal setae on coxisternum I (1a) 15, proximal setae on coxisternum II (2a) 30. Legs I 28 long, femur 7, basiventral femoral setae (bv) 10; genu 5 long, antaxial genual setae (l'') 20 long; tibia 7, paraxial tibial setae (l') 5, setae located at 1/3 from dorsal base; tarsus 6 long; tarsal empodium simple, 4­rayed, tarsal solenidion knobbed. Legs II 26 long, femur 7, basiventral femoral setae (bv) 8; genu 4 long, antaxial genual setae (l'') 7 long; tibia 6; tarsus 6 long; tarsal empodium simple, 4­rayed, tarsal solenidion knobbed. Dorsal opisthosoma with 41 annuli, with elliptical microtubercles on rear annular margins, ventrally with 66 microtuberculate rings. Setae c2 23 on ventral annulus 12; setae d 35 on ventral annulus 25; setae e 20 on ventral annulus 44; setae f 20 on 7th ventral annulus from rear. Setae h1 4 long. Female genitalia 15 long, 22 wide, coverflap with 8 longitudinal ridges, proximal setae on coxisternum III (3a) 12 long.

Male: (n = 1) 175 long, 60 wide; genitalia 5 long, 20 wide, proximal setae on coxisternum III (3a) 12 long.

Type data: Holotype, female, from Amygdalus triloba (Lindl.) Ricker (Rosaceae) , Longyuwan, Luanchuan County, Henan Province, P.R. China, 21 July 2004, coll. X.­F. Xue. Paratypes, 12 females and 1 male, with the same data as holotpye.

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

Etymology: The specific designation is derived from the generic name of the host plant, Amygdalus .

Note: This species is similar to Epitrimerus amomi Kuang & Hong, 1989 , but can be differentiated from the latter in that the prodorsal shield is without a median line, dorsal annuli with elliptical microtubercles instead of rounded microtubercles and coxal area with short lines instead of smoothness in E. amomi .

Figures

FIGURE 7. Epitrimerus amygdali n. sp. A, dorsal view of female; B, coxae and female genitalia; C, legs I and II; D, lateral microtubercles; E, tarsal empodium; F, male genitalia.