A new genus and three new species of Diptilomiopidae - BioOne

Systematic & Applied Acarology 19(2): 223–235. http://dx.doi.org/10.11158/saa.19.2.13

ISSN 1362-1971

http://zoobank.org/urn:lsid:zoobank.org:pub:95790156-7CF9-4621-8E66-88D0D4C69D19 Article

A new genus and three new species of Diptilomiopidae from Zhejiang Province, China SHAHJAHAN RAJPUT, XIAO HAN, XIAO-FENG XUE & XIAO-YUE HONG1 Department of Entomology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China 1

Corresponding author. E-mail: [email protected]

Abstract One new genus and three new species of the Diptilomiopidae from Zhejiang Province, China are described and illustrated. They are Linacutus cathayensis gen. nov. and sp. nov. on Carya cathayensis Sarg. (Juglandaceae), Diptacus elegantulum sp. nov. on Acer elegantulum Fang & Chiu (Sapindaceae) and Diptacus tianmuensis sp. nov. on Prunus sp. Linn. (Rosaceae). All the new species described in this paper are vagrants on their respective host plant. Key words: Taxonomy, Diptilomiopinae, Rhyncaphytoptinae, Tianmu Mountain, Qingliang Mountain

Introduction The Eriophyoidea consists of the families Eriophyidae, Phytoptidae and Diptilomiopidae. The family Diptilomiopidae was established by Keifer (1944) based on the type genus Diptilomiopus Nalepa, 1916. The mites of the Diptilomiopidae can be distinguished from the mites of the other two families on the bases of a larger gnathosoma, abruptly curved and bent down near the cheliceral base, longer oral stylet and attenuate pedipals. The Diptilomiopidae consists of two subfamilies, Diptilomiopinae Keifer, 1944 and Rhyncaphytoptinae Roivainen, 1953. Tarsal empodium is divided in the Diptilomiopinae or entire in the Rhyncaphytoptinae (Amrine et al., 2003). As of 2011, the family Diptilomiopidae included 63 genera and 450 species worldwide (Zhang et al., 2011), of which two subfamilies, 34 genera and 186 species had been reported from China (Hong et al., 2010). During 2011 and 2012, plants in the Tianmu Mountain and Qingliang Mountain were surveyed in Zhejiang Province, China. One new genus and three new species of diptilomiopids were found. All the new species described herein are vagrants on their respective host plant species.

Materials and Methods Eriophyoid mites were collected from different host plants with the help of hand-lens (30X) from Tianmu and Qingliang Mountains of Zhejiang Province of China. Collected mites, together with their host plants were placed in vials and preserved in 75% ethanol and brought into laboratory for identification. Host plant parts were kept in plant specimen folder for further identification. The morphological terminology used to describe the body parts of the mites follows Lindquist (1996) and generic classification follows Amrine et al. (2003). Slides were mounted using Keifer’s F-medium and modified berlese medium (Amrine and Manson 1996) and measurements of specimens were taken following de Lillo et al. (2010). Specimens were observed by using Zeiss A2 (Germany) research microscope with phase contrast and semi-schematic drawings were made. Micrographs © 2014 Systematic & Applied Acarology Society

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were taken by using Zeiss A2 (Microphoto camera AxioCam MRc) research microscope with phase contrast using x10 eyepieces at x100 oil magnification, connected to a computer using Axiovision image analysis software. Because of the mounting position of mites on the slides, it was not possible to provide the illustrations of the lateral view of all species described here. In addition, the female genital apodeme of Diptacus tianmuensis was not discernible. For each species the holotype female measurement precedes the corresponding range for paratypes (given in parentheses). For males, only the range of measurements is given. The measurements of different body parts of the collected specimens were made in micrometers (μm) and rounded off to the nearest full number, and are lengths when not otherwise specified. The number of specimens measured, indicated by (n) at the beginning of description of each species. All type specimens are deposited as slide mounted specimens in the Arthropod/Mite Collection of the Department of Entomology, Nanjing Agricultural University (NJAU), Jiangsu Province, China.

Systematics Linacutus gen. nov. Type species: Linacutus cathayensis sp. nov. Diagnosis Body fusiform; prodorsal shield with broad based and semicircular frontal lobe, long and subcylindric scapular tubercles on the postero-lateral angles of the shield, scapular setae (sc) directed laterally, postero-lateral edges of the prodorsal shield with pointed projections; coxae with sternal line, all coxal setae present; legs with usual series of setae, tarsal empodium entire; opisthosoma with usual series of setae, dorsal opisthosoma with broad smooth annuli with strong pointed projections and ventral opisthosoma with narrow annuli provided with microtubercles; no ridge or furrow on the dorsal opisthosoma. Etymology The genus designation is the combination of two words Lin derived from the Lin’an (city name, where the type species was collected) and Latin adjective acutus, which means “sharp” or “pointed” (the type species has strong pointed projections on postero-lateral edges of the prodorsal shield and on dorsal annular margins). Notes The new genus is assigned to Eriophyoidea, Diptilomiopidae, Rhyncaphytoptinae. It is similar to Peralox Keifer, 1962, but can be differentiated from the latter by the absence of deep cleft between prodorsal shield and 1st dorsal annulus (a deep cleft present between prodorsal shield and 1st dorsal annulus in Peralox), scapular tubercles and scapular setae directing laterally (scapular tubercles and scapular setae directing upward in Peralox).

Linacutus cathayensis sp. nov. (Figs. 1–3) Female (n = 10). Body fusiform, 263 (261–281), 85 (85–101) wide; light yellow in colour. Gnathosoma 30 (28–37), projecting down, pedipalp coxal seta (ep) 3, dorsal pedipalp genual seta (d)

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FIGURE 1. Linacutus cathayensis gen. nov. and sp. nov.: D, dorsal view of female; L1, leg І; L2, leg ІІ; IG, female internal genitalia; em, empodium.

8 (7–9), cheliceral stylets 47 (42–50). Prodorsal shield 50 (47–54), 89 (79–89) wide, median and submedian lines absent, short admedian lines present at 1/3 from the rear shield margin, a short transverse line present near the anterior shield margin; frontal lobe broad based and semicircular. Scapular tubercles on the postero-lateral angles of the shield, 37 (37–50) apart, scapular setae (sc) 11 (9–11), projecting laterally, postero-lateral edges of the prodorsal shield with pointed projections. Coxal plates smooth, anterolateral setae on coxisternum І (1b) 14 (10–14), 15 (15–21) apart, proximal setae on coxisternum І (1a) 45 (32–45), 16 (16–20) apart, proximal setae on coxisternum ІІ (2a) 75 (65–78), 40 (40–41) apart. Prosternal apodeme 11 (7–11). Coxigenital region with 22 (20– 22) microtuberculated annuli. Legs with usual series of setae. Leg І 38 (35–38), femur 15 (13–15), basiventral femoral seta (bv) 17 (14–17); genu 7 (7–8), antaxial genual seta (l′′) 28 (24–28); tibia 8 (8–9), paraxial tibial seta (l′) 3 (3–4), located at 1/3 from dorsal base; tarsus 8 (7–8), seta ft′ 24 (18– 24), seta ft′′ 28 (24–28), seta u′ 6 (4–6); tarsal empodium (em) 7 (6–7), simple, 5-rayed, tarsal 2014

RAJPUT ET AL.: A NEW GENUS & THREE NEW SPECIES OF DIPTILOMIOPIDAE FROM CHINA

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solenidion (ω) 9 (7–9), knobbed. Leg ІІ 37 (34–37), femur 15 (11–15), basiventral femoral seta (bv) 16 (13–16); genu 7 (6–7), antaxial genual seta (l′′) 5 (5–8); tibia 8 (6–8); tarsus 7 (7–8), seta ft′ 7 (5– 7), seta ft′′ 26 (26–29), seta u′ 5 (4–5); tarsal empodium (em) 7 (7–8), simple, 5-rayed, tarsal solenidion (ω) 9 (7–9), knobbed. Opisthosoma dorsally with 17 (16–17) broad smooth annuli with strong pointed projections, ventrally with 125 (110–126) narrow annuli with rounded microtubercles on rear annular margins. Setae c2 27 (22–27) on ventral annulus 34 (31–34), 78 (78–85) apart; setae d 55 (47–55) on ventral annulus 58 (55–58), 54 (54–67) apart; setae e 15 (12–15) on ventral annulus 81 (81–84), 26 (26–30) apart, setae f 30 (30–42) on 6th ventral annulus from the rear, 21 (20–22) apart. Setae h1 3 (2–3), h2 108 (104–111). Genitalia 17 (17–21), 31 (29–32) wide, coverflap smooth, setae 3a 14 (11–15), 24 (22–25) apart.

FIGURE 2. Linacutus cathayensis gen. nov. and sp. nov.: V, ventral view of female; CGM, coxae and male genitalia.

Male (n = 3). Body fusiform, 239–248, 72–84 wide; light yellow in colour. Gnathosoma 27–36, projecting down, pedipalp coxal seta (ep) 3, dorsal pedipalp genual seta (d) 6–8, cheliceral stylets 40–46. Prodorsal shield 41–51, 69–72 wide; median and submedian lines absent, short admedian

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FIGURE 3. Linacutus cathayensis gen. nov. and sp. nov.: A, prodorsal shield; B, dorsal pointed projections; C, male genitalia; D, coxae and female genitalia; E, empodium; F, female internal genitalia; G, leg І and leg ІІ.

lines present at 1/3 from the rear shield margin, a short transverse line present near the anterior shield margin; frontal lobe broad based and semicircular. Scapular tubercles on the postero-lateral angles 2014


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of the shield, 28–45 apart, scapular setae (sc) 8–9, projecting laterally, postero-lateral edges of the prodorsal shield with pointed projections. Coxal plates smooth, anterolateral setae on coxisternum І (1b) 12–13, 12–14 apart, proximal setae on coxisternum І (1a) 32–33, 11–13 apart, proximal setae on coxisternum ІІ (2a) 50–54, 35–38 apart. Prosternal apodeme 8–9. Coxigenital region with 17–18 microtuberculated annuli. Legs with usual series of setae. Leg І 31–36, femur 11–12, basiventral femoral seta (bv) 14–17; genu 6, antaxial genual seta (l′′) 23–24; tibia 8–10, paraxial tibial seta (l′) 2–3, located at 1/3 from dorsal base; tarsus 6–8, seta ft′ 18–20, seta ft′′ 24–27, seta u′ 4–6; tarsal empodium (em) 6–7, simple, 5-rayed, tarsal solenidion (ω) 6–7, knobbed. Leg ІІ 30–32, femur 13– 14, basiventral femoral seta (bv) 13–14; genu 5–7, antaxial genual seta (l′′) 5; tibia 5–6; tarsus 6, seta ft′ 6, seta ft′′ 24, seta u′ 4; tarsal empodium (em) 6–7, simple, 5-rayed, tarsal solenidion (ω) 7, knobbed. Opisthosoma dorsally with 16–17 broad smooth annuli with strong pointed projections, ventrally with 95–103 narrow annuli with rounded microtubercles on rear annular margins. Setae c2 20–22 on ventral annulus 30–32, 70–71 apart; setae d 43–44 on ventral annulus 50–52, 49–50 apart; setae e 12–13 on ventral annulus 70–74, 25 apart, setae f 29–33 on 6–7 ventral annulus from the rear, 19–21 apart. Setae h1 1–3, h2 94–101. Genitalia 23–24 wide, setae 3a 11–15, 19–20 apart. Type material Holotype. Female (slide no. NJAUAcariEriZ214.1, marked Holotype), from Carya cathayensis Sarg. (Juglandaceae), Qingliang mountain, Lin’an City, Zhejiang Province, P.R. China, 30°02′26′′N, 118°56′04′′E, elevation 427 m, 16 May 2012, coll. Hao-Sen Li & Jing-Feng Guo. Paratypes. 9 females and 3 males on 12 microscope slides (slide no. NJAUAcariEriZ214.2– 214.13), from Carya cathayensis Sarg. (Juglandaceae), Qingliang mountain, Lin’an City, Zhejiang Province, P.R. China, 30°02′26′′N, 118°56′04′′E, elevation 427 m, 16 May 2012, coll. Hao-Sen Li & Jing-Feng Guo. Relation to host Vagrant on lower surface of the leaf. No damage to the host was observed. Etymology The specific designation cathayensis is from the species name of host plant, cathayensis.

Diptacus elegantulum sp. nov. (Figs. 4–6) Female (n = 7). Body fusiform, 247 (246–248), 84 (83–85) wide; light yellow in colour. Gnathosoma 38 (30–38), projecting down, pedipalp coxal seta (ep) 3, dorsal pedipalp genual seta (d) 9 (8–9), cheliceral stylets 46 (44–48). Prodorsal shield 38 (38–39), 55 (54–56) wide, median line discontinuous at the center, connected with admedian lines by transverse lines, 1/4 at posterior margin and 2/3 at anterior margin, submedian lines absent; frontal lobe deeply emarginate. Scapular tubercles near the rear shield margin, 24 (21–25) apart, scapular setae (sc) 5 (5–7), projecting upward. Coxal plates, coxisternal plates I with short lines and granules, coxisternal plates II with some granules; anterolateral setae on coxisternum І (1b) 13 (11–13), 16 (15–17) apart, proximal setae on coxisternum І (1a) 20 (18–22), 12 (10–12) apart, proximal setae on coxisternum ІІ (2a) 45 (41–45), 34 (32–35) apart. Prosternal apodeme absent. Coxigenital region with 10 (9–10) microtuberculated annuli. Legs with femoral setae absent from both legs. Leg І 37, femur 12, genu 4 (4–5), antaxial genual seta (l′′) 25 (22–25); tibia 14 (13–14), paraxial tibial seta (l′) 6 (5–6), located at 1/3 from dorsal base; tarsus 7, seta ft′ 18 (16–18), seta ft′′ 22 (20–22), seta u′ 4 (4–5); tarsal 228


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empodium (em) 5 (5–6), divided, each empodial branch 3-rayed, tarsal solenidion (ω) 6 (5–6), knobbed. Leg ІІ 33 (33–35), femur 12, genu 4 (4–5), antaxial genual seta (l′′) 8 (8–9); tibia 11; tarsus 6 (6–7), seta ft′ 9 (6–9), seta ft′′ 20 (18–20), seta u′ 4 (4–5); tarsal empodium (em) 5, divided, each empodial branch 3-rayed, tarsal solenidion (ω) 6 (5–6), knobbed. Opisthosoma dorsally with 50 (50– 52) annuli, with elongated microtubercles, ventrally with 93 (93–96) annuli, with rounded microtubercles on rear annular margins. Setae c2 16 (16–18) on ventral annulus 22 (19–22), 74 (72– 74) apart; setae d 61 (61–67) on ventral annulus 40 (39–41), 47 (47–50) apart; setae e 14 (12–15) on ventral annulus 62 (60–63), 27 (27–31) apart, setae f 25 (23–25) on 7th ventral annulus from the rear, 28 (24–28) apart. Setae h1 absent, h2 84 (81–85). Genitalia 20 (19–21), 29 (28–30) wide, coverflap with 15 longitudinal ridges, setae 3a 11 (11–13), 21 (19–21) apart.

FIGURE 4. Diptacus elegantulum sp. nov.: D, dorsal view of female; GM, male genitalia; IG, female internal genitalia; em, empodium.

Male (n = 3). Body fusiform, 217–221, 68–69 wide; light yellow in colour. Gnathosoma 30–34, projecting down, pedipalp coxal seta (ep) 3, dorsal pedipalp genual seta (d) 6–7, cheliceral stylets 40–41. Prodorsal shield 33–34, 48–50 wide; median line discontinuous at the center, connected with admedian lines by transverse lines, 1/4 at posterior margin and 2/3 at anterior margin, submedian 2014


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lines absent; frontal lobe deeply emarginate. Scapular tubercles near the rear shield margin, 19–20 apart, scapular setae (sc) 4–5, projecting upward. Coxal plates, coxisternal plates I with short lines and granules, coxisternal plates II with some granules; anterolateral setae on coxisternum І (1b) 10– 11, 12–13 apart, proximal setae on coxisternum І (1a) 11–12, 8–9 apart, proximal setae on coxisternum ІІ (2a) 42–44, 26–27 apart. Prosternal apodeme absent. Coxigenital region with 8–9 microtuberculated annuli. Legs with femoral setae absent from both legs. Leg І 35–36, femur 13, genu 5, antaxial genual seta (l′′) 22–23; tibia 11, paraxial tibial seta (l′) 5–6, located at 1/3 from dorsal base; tarsus 6–7, seta ft′ 16–17, seta ft′′ 19–20, seta u′ 3–4; tarsal empodium (em) 4–5, divided, each empodial branch 3-rayed, tarsal solenidion (ω) 5–6, knobbed. Leg ІІ 33–34, femur 12, genu 5, antaxial genual seta (l′′) 8–9; tibia 10–11; tarsus 6, seta ft′ 5–6, seta ft′′ 19–20, seta u′ 3–4; tarsal empodium (em) 4–5, divided, each empodial branch 3-rayed, tarsal solenidion (ω) 4–5, knobbed. Opisthosoma dorsally with 46–47 annuli, with elongated microtubercles, ventrally with 84–86 annuli, with rounded microtubercles on rear annular margins. Setae c2 14–15 on ventral annulus 17– 18, 57–58 apart; setae d 55–59 on ventral annulus 33–35, 41–43 apart; setae e 10–12 on ventral annulus 51–54 apart, setae f 20–21 on 6–7 ventral annulus from the rear, 24–25 apart. Setae h1 absent, h2 76–79. Genitalia 24–25 wide, setae 3a 9–10, 18–19 apart.

FIGURE 5. Diptacus elegantulum sp. nov.: V, ventral view of female; L1, leg І; L2, leg ІІ.

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Type material Holotype. Female (slide no. NJAUAcariEriZ232.1; marked Holotype), from Acer elegantulum Fang et P. L. Chiu (Sapindaceae), Qingliang mountain, Lin’an City, Zhejiang Province, P.R. China, 30°02′26′′N, 118°56′04′′E, elevation 427 m, 17 May 2012, coll. Hao-Sen Li & Jing-Feng Guo. Paratypes. 6 females and 3 males on 9 microscope slides (slide no. NJAUAcariEriZ232.2– 232.10), from Acer elegantulum Fang et P. L. Chiu (Sapindaceae), Qingliang mountain, Lin’an City, Zhejiang Province, P.R. China, 30°02′26′′N, 118°56′04′′E, elevation 427 m, 17 May 2012, coll. HaoSen Li & Jing-Feng Guo.

FIGURE 6. Diptacus elegantulum sp. nov.: A, prodorsal shield; B, coxae and female genitalia; C, female internal genitalia; D, leg І and leg ІІ; E, male genitalia; F, empodium.

Relation to host Vagrant on lower surface of the leaf. No damage to the host was observed. Etymology The specific designation elegantulum is from the species name of host plant, elegantulum. 2014


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Differential Diagnosis This new species is similar to Diptacus aceris Kuang & Hong, 1990, from Acer buergerianum Miq. (Aceraceae), but can be differentiated mainly from, prodorsal shield with median and admedian lines present, submedian lines absent (median and admedian lines absent, submedian lines present in D. aceris), scapular tubercles near the rear shield margin (scapular tubercles ahead of rear shield margin in D. aceris), dorsal opisthosoma with microtuberculated annuli (dorsal opisthosoma with smooth annuli in D. aceris) and tarsal empodium 3-rayed (tarsal empodium 5-rayed in D. aceris).

Diptacus tianmuensis sp. nov. (Figs. 7–9) Female (n = 8). Body fusiform, 242 (238–242), 73 (67–73) wide; light yellow in colour. Gnathosoma 35, projecting down, pedipalp coxal seta (ep) 3, dorsal pedipalp genual seta (d) 12 (11–12), subapical pedipalp tarsal setae (v) 3, cheliceral stylets 51 (48–51). Prodorsal shield 44 (43–44), 58 (50–58) wide, short and indistinct median and admedian lines present, submedian lines absent; frontal lobe spotted and anteriorly emarginate. Scapular tubercles near the rear shield margin, 29 (27–29) apart,

FIGURE 7. Diptacus tianmuensis sp. nov.: D, dorsal view of female; L1, leg І; L2, leg ІІ; em, empodium.

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scapular setae (sc) 17 (15–17), projecting upward. Coxal plates, coxisternal plates I with some granules, coxisternal plates II smooth, anterolateral setae on coxisternum І (1b) 12 (12–15), 16 (16– 18) apart, proximal setae on coxisternum І (1a) 13 (12–13), 11 (10–12) apart, proximal setae on coxisternum ІІ (2a) 34 (29–34), 32 (30–32) apart. Prosternal apodeme absent. Coxigenital region with 20 (16–20) microtuberculated annuli. Legs with femoral setae absent from both legs. Leg І 48 (46–48), femur 16 (15–16), genu 6, antaxial genual seta (l′′) 36 (34–36); tibia 18 (17–18), paraxial tibial seta (l′) 7 (5–7), located near dorsal base; tarsus 8, seta ft′ 23 (18–23), seta ft′′ 26 (24–26), seta u′ 5 (4–5); tarsal empodium (em) 6 (6–7), divided, each empodial branch 6-rayed, tarsal solenidion (ω) 7 (7–8), knobbed. Leg ІІ 43 (42–43), femur 16 (15–16), genu 5, antaxial genual seta (l′′) 8 (6– 8); tibia 14; tarsus 8, seta ft′ 10 (9–10), seta ft′′ 24 (21–24), seta u′ 4 (4–5); tarsal empodium (em) 6 (5–6), divided, each empodial branch 6-rayed, tarsal solenidion (ω) 7 (7–8), knobbed. Opisthosoma dorsally with 70 (63–70) smooth annuli, ventrally with 94 (84–94) annuli, with rounded microtubercles on rear annular margins. Setae c2 16 (15–16) on ventral annulus 29 (24–29), 62 (60– 62) apart; setae d 58 (58–60) on ventral annulus 43 (38–43), 38 (38–39) apart; setae e 12 (10–12) on ventral annulus 62 (58–62), 19 (19–21) apart, setae f 31 (30–31) on 8th ventral annulus from the rear, 22 (20–22) apart. Setae h1 1, h2 51 (51–60). Genitalia 23 (23–27), 32 (31–32) wide, coverflap with 14 longitudinal ridges, setae 3a 10 (9–10), 15 (15–18) apart.

FIGURE 8. Diptacus tianmuensis sp. nov.: V ventral view of female.

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Male Not seen. Type material Holotype. Female (slide no. NJAUAcariEriZ166A.1; marked Holotype), from Prunus sp. Linn. (Rosaceae), Tianmu mountain, Lin’an City, Zhejiang Province, P.R. China, 30°20′37′′N, 119°26′24′′E, elevation 1148 m, 26 July 2011, coll. Hao-Sen Li & Jing-Feng Guo. Paratypes. 7 females on 7 microscope slides (slide no. NJAUAcariEriZ166A.2–166A.8), from Prunus sp. (Rosaceae), Tianmu mountain, Lin’an City, Zhejiang Province, P.R. China, 30°20′37′′N, 119°26′24′′E, elevation 1148 m, 26 July 2011, coll. Hao-Sen Li & Jing-Feng Guo. Relation to host Vagrant on lower surface of the leaf. No damage to the host was observed. Etymology The specific designation tianmuensis is combined from Tianmu (place name, where the new species was collected), and the suffix ensis.

FIGURE 9. Diptacus tianmuensis sp. nov.: A, leg І and leg ІІ; B, coxae and female genitalia; C, prodorsal shield; D, empodium.

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Differential Diagnosis This new species is similar to Diptacus chizhouensis Wang, Xue & Hong, 2009, from Rubus corchorifolius Linn. f. (Rosaceae), but can be differentiated mainly for the prodorsal shield with indistinct admedian lines present in crescent shape (admedian lines straight in D. chizhouensis), submedian lines absent (submedian lines present in D. chizhouensis); spotted frontal lobe (frontal lobe smooth in D. chizhouensis) and tarsal empodium 6-rayed (tarsal empodium 5-rayed in D. chizhouensis).

Acknowledgements This research was funded by the National Natural Science Foundation of China (No. 31172132). We are thankful to Qiong Wang of Nanjing Agricultural University, China for her help in identification of mites.

References Amrine, J.W. Jr. & Manson, D.C.M. (1996) Preparation, mounting and descriptive study of eriophyoid mites. In: Lindquist, E.E., Sabelis M.W. & Bruin, J. (Eds.), Eriophyoid Mites: Their Biology, Natural Enemies and Control. World Crop Pests, 6. Elsevier, Amsterdam, pp. 383–396. http://dx.doi.org/10.1016/s1572-4379(96)80023-6 Amrine, J.W. Jr., Stasny, T.A. & Flechtmann, C.H.W. (2003) Revised Keys to World Genera of Eriophyoidea (Acari: Prostigmata). Indira Publishing House, Michigan, U.S.A., 244 pp. de Lillo, E., Craemer, C., Amrine, J.W.Jr. & Nuzzaci, G. (2010) Recommended procedures and techniques for morphological studies of Eriophyoidea (Acari: Prostigmata). Experimental and Applied Acarology, 51, 283–307. http://dx.doi.org/10.1007/s10493-009-9311-x Hong, X.-Y., Xue, X.-F. & Song, Z.-W. (2010) Eriophyoidea of China: a review of progress, with a checklist. Zoosymposia, 4, 57–93. Keifer, H.H. (1940) Eriophyid Studies X. Bulletin of the California Department of Agriculture, 29, 160–179. Keifer, H.H. (1962) Eriophyid studies B-6. Bureau of the California Department of Agriculture, 20 pp. Kuang, H.-Y. & Hong, X.-Y. (1990) Two new species of the genus Diptacus from China (Acari: Rhyncaphytoptidae). Acta Zootaxonomica Sinica, 15, 457–460. Lindquist, E.E. (1996) External anatomy and notation of structures. In: Lindquist, E.E., Sabelis, M.W. & Bruin, J. (eds). Eriophyoid Mites: Their Biology, Natural Enemies and Control. World Crop Pests, 6. Elsevier, Amsterdam, pp. 3–31. http://dx.doi.org/10.1016/s1572-4379(96)80003-0 Wang, Z., Xue, X.-F. & Hong, X.-Y. (2009) Four new species and a re-described species of the Diptilomiopinae (Acari: Eriophyoidea: Diptilomiopidae) from China. International Journal of Acarology, 35, 123– 132. http://dx.doi.org/10.1080/01647950902917601 Zhang, Z.-Q., Fan, Q.-H., Pesic, V., Smit, H., Bochkov, A.V., Khaustov, A.A., Baker, A., Wohltmann, A., Wen, T.-H., Amrine, J.W., Beron, P., Lin, J.-Z. & Husband, R. (2011) Order Trombidiformes Reuter, 1909. In: Zhang Z-Q (ed). Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness. Zootaxa, 3148, 129–138.

Accepted by Zhi-Qiang Zhang: 27 May 2014; published 27 Jun. 2014

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