Two new species and a new record of eriophyoid mites (Acari: Eriophyodea) from Guangxi, China Author Lv, An-Kang 0000-0001-8063-6153 Guangxi key laboratory of Agric-Environment and Agric-Products Safety, National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, China. & 1152970314 @ qq. com; https: // orcid. org / 0000 - 0001 - 8063 - 6153 1152970314@qq.com Author He, Wei-Qiaochu 0000-0002-7740-4404 Guangxi key laboratory of Agric-Environment and Agric-Products Safety, National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, China. & 1530545736 @ qq. com; https: // orcid. org / 0000 - 0002 - 7740 - 4404 1530545736@qq.com Author Gao, Xian-Liangyu 0000-0003-1659-6171 Guangxi key laboratory of Agric-Environment and Agric-Products Safety, National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, China. & 1029406007 @ qq. com; https: // orcid. org / 0000 - 0003 - 1659 - 6171 1029406007@qq.com Author Tan, Meng-Chao Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education, Nanning Normal University, Nanning, P. R. China. Author Wang, Guo-Quan Guangxi key laboratory of Agric-Environment and Agric-Products Safety, National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, China. text Zootaxa 2022 2022-08-19 5175 5 521 534 journal article 124673 10.11646/zootaxa.5175.5.2 35f233b3-fda2-4155-bb86-78ba18a3c1f9 1175-5326 7009499 9D012CAB-B3A3-4001-9DFE-AA44780A7E4C Rhyncaphytoptus miliusius sp. nov. ( Figs 4–5 ) Diagnosis . Body fusiform, yellow. Gnathosoma large in comparison to body, empodium entire, prodorsal shield lobe present. Median line incomplete, absent at basal 1/5, admedian lines and submedian lines complete; median and admedian lines contected with two transverse lines forming six cells. Scapular tubercles on rear shield margin, scapular setae ( sc ) directed backwards. Coxal area smooth, prosternal apodeme present. Legs with series of setae, tarsal empodium entire, 7-rayed. Female genital coverflap smooth. Dorsal annuli 50 (50–54), ventral annuli 94 (92–96). Description. Female (n=10). Body. Fusiform ( Figs. 4A, 4C , 5D, 5V ), yellow in color. 214 (208–221) long, 76 (74–78) wide, 71 (69–74) thick. Gnathosoma. Projecting downwards 46 (42–48), pedipalp coxal setae ( ep ) 5 (4–5), dorsal pedipalp genual setae ( d ) 11 (8–12), unbranched, subapical pedipalp tarsal setae ( v ) 3*, cheliceral stylets 55 (52–58). Prodorsal shield. 30 (29–32) long, 58 (56–60) wide, frontal lobe present. Median line incomplete, median line absent at basal 1/5, admedian lines complete, connected to median line by three cross lines at rear ¼, ½ and ¾ producing six small cells, base forming arc. Submedian lines complete. Scapular tubercles set ahead of rear shield margin, 33 (31–34) apart, scapular setae ( sc ) 31 (28–34), scapular setae directed posterolaterally. Coxisternal plates ( Figs. 4B , 5 CGF). Prosternal apodeme 9 (9–12), coxal area smooth, anterolateral setae on coxisternum І ( 1b ) 11 (10–13), 12 (10–13) apart; proximal setae on coxisternum І ( 1a ) 22 (20–24), 11 (10–13) apart; proximal setae on coxisternum ІІ ( 2a ) 36 (35–39), 34 (32–37) apart. Coxigenital annuli 15 (14–15). FIGURE 4. Rhyncaphytoptus miliusius sp. nov. : A. Dorsal view, female; B. Coxigenital area of female; C. Ventral view, female; D. Annuli, lateral view; E. Empodium 7-rayed; F. Female internal genitalia; G. Legs. FIGURE 5. Rhyncaphytoptus miliusius sp. nov. : D. Dorsal view of female; V. Ventral view; CGF. Coxigenital area of female; em. Empodium; IG. Female internal genitalia; LO. Annuli, lateral view; L1. Leg I; L2. Leg II. Legs ( Figs. 4G , 5L 1 , 5L 2 ). Segments normal. Legs I 41 (40–46), trochanter4 (3–5), femur 13 (12–14),basiventral femoral setae ( bv ) 16 (15–18); genu 6 (5–7), antaxial genual setae ( l′ ′) 31 (30–33); tibia 11 (9–13), paraxial tibial setae ( l′ ) 13 (12–14), setae located ¼ from dorsal base; tarsus 6 (6–8), paraxial fastigial tarsal setae ( ft′ ) 24 (21–25), antaxial fastigial tarsal setae ( ft′ ′) 28 (26–30), paraxial unguinal tarsal setae ( u′ ) 5 (4–5); tarsal empodium ( em ) 8 (7–8), simple, 7-rayed, tarsal solenidion ( ω ) 9 (9–10). Legs ІІ 34 (31–36), trochanter 4 (3–4), femur 11 (11–13), setae ( bv ) 15 (13–17); genu 6 (5–6), setae ( l′ ′) 14 (14–16); tibia 9 (9–12); tarsus 7 (6–9), setae ( ft′ ) 8 (7–11), setae ( ft′ ′) 26 (25–29), setae ( u′ ) 5 (4–5); tarsal empodium ( em ) 8 (7–8), simple, 7-rayed, tarsal solenidion ( ω ) 9 (8–10). Opisthosoma ( Figs. 4A, 4B , 5D, 5V ). Dorsally arched, dorsal annuli 50 (50–54), with sharp-angled or spine microtubercles. Ventral annuli 94 (92–96), with round microtubercles; Setae c2 23 (22–24), 64 (63–64) apart, on ventral annulus 24 (23–24); setae d 52 (49–55), 43 (43–44) apart, on ventral annulus 40 (40–41); setae e 20 (18–24), 26 (25–27) apart, on ventral annulus 58 (56–60); setae f 41 (39–45), 28 (27–30) apart, on 6 (6–7) ventral annulus from rear; setae h1 5 (5–7), 10 (9–11) apart; setae h2 65 (60–69), 15 (15–16) apart. Female genitalia ( Figs. 4B , 5 IG). 15 (14–17), 34 (33–36) wide, coverflap smooth and bowl shaped, setae 3a 35 (32–37), 24 (23–24) apart. Internal genitalia: anterior transverse genital apodeme trapezoidal in ventral view, distally folded, spermathecal tubes relatively short, oblique apodeme present under the anterior genital apodeme, spermatheca almost globose or ovoid, directed latero-posterad. Male unknown. Type material. Holotype female (slide number Jinzhongshan 2022.2~2.1, GXU ), Jinzhongshan Nature Reserve , Baise City , Guangxi Zhuang Autonomous Region , China ( 24°36′07′′N , 104°52′37′′E , 1000 m ), 3 May 2021 , from Miliusa sinensis Finet & Gagnep. (Annonaceae) . Coll. Mengchao Tan, Liangxin Liu and Ankang Lv. Paratypes nine females (slide number Jinzhongshan 2022.2.2 ~2.10, GXU ), same data as holotype . Host plant. Miliusa sinensis Finet & Gagnep. (Annonaceae) . Relation to the host plant. The mites are vagrants on the undersurface of the leaves, no visible damage was observed. Distribution. China ( Guangxi ). Etymology. The specific designation miliusius is derived from the generic name of the type host plant, Miliusa ; feminine in gender. Remarks. The new species is similar to Rhyncaphytoptus castanifoliae Keifer, 1940 found on Castanea dentata (Marshall) Borkh. Chestnut , ( Fagaceae ) which is characterized as follows: median line incomplete, coverflap smooth, opisthosoma setae h1 present. But can be differentiated from the latter by having the ventral annuli with sharp-angled microtubercles ( vs. dorsal annuli with dash-like microtubercles in R. castanifoliae ), tarsal empodium ( em ) 7-rayed ( vs. tarsal empodium ( em ) 5-rayed in R. castanifoliae ), the length of scapular setae sc 31 μm ( vs. 12 μm in R. castanifoliae ). The new species is also similar to Rhyncaphytoptus acer Chen, Wei & Qin, 2004 found on Acer davidii Franch. (Aceraceae) which is characterized as follows: admedian lines complete, coverflap smooth, prosternal apodeme present. But can be differentiated from it by tarsal empodium ( em ) 7-rayed ( vs. tarsal empodium ( em ) 6-rayed in R. acer ), the length of scapular setae sc 31 μm ( vs. 17.5 μm in R. acer ). The new species is also similar to Rhyncaphytoptus spinus Li, Xue & Hong, 2012 found on Lonicera rupicola Hook. F. et Thoms. (Caprifoliaceae) which is characterized as follows: coverflap smooth, prosternal apodeme and opisthosoma setae h1 present. But can be differentiated it by dorsal annuli with sharp-angled microtubercles ( vs. dorsal annuli with long spiny microtubercles in R. spinus ), the length of scapular setae sc 31 μm ( vs. 21 μm in R. spinus ), the length of opisthosomal setae d 52 μm ( vs. 97 μm in R. spinus ). The main differences lie in the following Table 2 .