Two new genera and two new species of eriophyoid mites (Acari: Eriophyoidea) from North Bengal, India Author Chakrabarti, Samiran Author Sur, Surajit Author Roy, Sourav Author Sarkar, Sanjay text Zootaxa 2017 4236 1 172 182 journal article 36471 10.11646/zootaxa.4236.1.10 86638a05-f886-45f5-9ccd-f974f243b653 1175-5326 321987 5BB90089-D736-4B4B-ACDC-08635ED40329 Spinaephyes alnus n. sp. ( Figs. 18–32 ) Diagnosis. Prodorsal shield with conspicuous frontal lobe and 1 small triangular papillae-like projection anteriorly and with 2 conspicuous spines on posterolateral margins, dorsal annuli broad, annuli 2, 5, 7, 9 and 11 bearing large lateral spines, annuli 1, 3, 6, 8, 10, 12 and 14 with striated median lobe, median line present only at anterior 1/3rd length of prodorsal shield, 9–10 longitudinal scorings on epigynium, absence of tibial seta from both legs, empodium bushy and 4-rayed. FIGURE 29–32 . Spinaephyes alnus n. sp. , female: 29. Dorsal view of body; 30. Ventral view of body; 31. Leg I with tibial seta absent. Male: 32. Genitalia. FEMALE ( holotype ): Body 140 ( 135–155 in 15 paratypes ) long, 62 (58–69) wide. Gnathosoma 24 (22–28) long, slightly curved down anteriorly, dorsal pedipalp genual seta d 4 (3–4). Prodorsal shield 27 (24–30) long, 65 (62–70) wide, almost quadrangular having rounded anterior corners, with conspicuous frontal lobe with 1 small triangular papillae-like projection anteriorly and with 2 conspicuous spines on posterolateral margins; median and admedian lines present only at anterior 1/3rd of prodorsal shield, submedian line not distinguishable but region between scapular setae with some small broken lines; dorsal tubercles with scapular seta sc 11 (9–13), very prominent and directed anteriorly; dorsal tubercle 6 (4–7) and 19 (17–19) apart; posterolateral margins of prodorsal shield with 2 conspicuous spines. Leg I from base of trochanter 41 (39–42), femur 14 (12–15), basiventral femoral seta bv 12 (10–14); genu 5 (4–6), antaxial genual seta lʺ 16 (14–18); tibia 9 (7–10), paraxial tibial seta lʹ absent; tarsus 6 (5–8), paraxial fastigial tarsal seta ftʹ 10 (9–11), antaxial fastigial tarsal seta ftʺ 10 (8–12), paraxial unguinal tarsal seta uʹ very small 2 (1–2); tarsal solenidion ω 7 (5–8) curved, slightly knobbed, tarsal empodium with bushy appearance, em 4 (3–5) and 4-rayed. Leg II from base of trochanter 40 (38–42), femur 13 (11–14), basiventral femoral seta bv 9 (8–10); genu 5 (4–5), antaxial genual seta lʺ absent; tibia 9 (7–9), paraxial tibial seta lʹ absent; tarsus 6 (5–7), paraxial fastigial tarsal setae ftʹ 11 (9–12), antaxial fastigial tarsal seta ftʺ 5 (4–5), paraxial unguinal tarsal seta uʹ 2 (1–2), tarsal solenidion ω 7 (5–8), curved, slightly knobbed, tarsal empodium divided with bushy appearance em 4 (3–5) and 4-rayed. Coxae I 17 (16–19) and jointed with conspicuous sternal line; coxal surface ornamented with few striations at base of setae 1b ; setae 1b 6 (5–7) and 8 (7–9) apart, 1a tubercles with setae present little ahead of line across 2a tubercles, setae 1a 16 (15–18) and 12 (12–14) apart; coxae II with few striations around setal base, 17 (16–18) long; setae 2a 21 (20–22) and 17 (17–19) apart. Opisthosoma with 19 (19– 20) dorsal annuli; dorsal annuli 2, 5, 7, 9 and 11 with large spines laterally; annuli 1, 3, 6, 8, 10, 12, 14 with striated median lobes projecting posteriorly covering next annuli; ventral annuli 45 (43–45), last 23 annuli with microstriations, setae c2 21 (18–22), present on annulus 7 ( 8 in 4 specimens ), seta d 25 (21–26) on ventral annulus 19 (19–20), seta e 18 (16–19) on ventral annulus 29 (29–30), seta f 23 (21–25) on ventral annulus 41 (41–42), seta h1 absent, seta h2 32 (30–34). Epigynium 19 (19–20) long, 20 (19–21) wide, with 9 (9–10) longitudinal scorings and elliptical in shape; seta 3a 9 (9–10), area between hind coxa and epigynium with 6 annuli. Internal genitalia with anterior apodeme slightly curved and abbreviated, spermathecal tubes shorter than spermathecal diameter. MALE (n=1) Smaller than female, 130 long, 45 wide; prodorsal shield 40 long, 49 wide, scapular seta sc 3. Leg I 31 ; femur 9, genu 5, tibia 6, tarsus 6, tarsal solenidion ω 5, tarsal empodium em 4, 4-rayed. Leg II 31 , femur 13, genu 5, tibia 7, tarsus 6, tarsal solenidion ω 5, tarsal empodium em 4, 4-rayed. Coxae 1b 6; 1a 15, 2a 20. Genitalia19 long, 20 wide, 3a 9. Seta h2 24; seta h1 absent. Type material . Holotype : Female (marked) on slide (no.1800/54/2015), INDIA : West Bengal , Darjeeling , Rishop , 27˚09’N, 88˚58’E, altitude 2591m , 18 October , 2015 on Alnus nepalensis D. Don ( Betulaceae ), coll. S. Chakrabarti . Paratypes: 1 female and 1male on slide bearing holotype and 8 females on 4 slides (nos. 1801–1804 / 54/2015), collection data same as in holotype; 6 females on 2 slides (nos. 1810-1811 /157/2016), Kalimpong 14 mile , 27˚06’N, 88˚32’E, altitude 1527m , 10 November , 2016, coll. S. Sur. Relation to host .Vagrant on undersurface of the leaf and white in colour. Etymology . The specific epithet is masculine gender and is derived from the generic name of the host plant.