Tetra angelica, Xue, Guo & Hong, 2013

XUE, XIAO-FENG, GUO, JING-FENG & HONG, XIAO-YUE, 2013, <p class = " HeadingRunIn " align = " left "> <strong> Eriophyoid mites from Northeast China (Acari: Eriophyoidea) </ strong> </ p>, Zootaxa 3689 (1), pp. 1-123 : 90-94

Tetra angelica sp. nov.

(Figs 65–68)

Description. FEMALE: (n = 15) Body fusiform, 236 (228–241), 88 (88–93) wide, 75 (75–77) thick; light yellow. Gnathosoma 25 (25–26), projecting obliquely down, pedipalp coxal seta (ep) 2 (2–3), dorsal pedipalp genual seta (d) 10 (9–10), cheliceral stylets 22 (19–22). Prodorsal shield 60 (56–60), 80 (80–81) wide, median, admedian and submedian lines incomplete, with large granules at lateral margins; anterior shield lobe broad. Scapular tubercles near rear shield margin, 33 (33–35) apart, scapular setae (sc) 7 (7–8), projecting posterior. Coxigenital region with 8 (8–10) microtuberculated annuli. Coxal plates with granules, anterolateral setae on coxisternum І (1b) 10 (9–10), 16 (15–16) apart, proximal setae on coxisternum І (1a) 21 (21–23), 11 (10–11) apart, proximal setae on coxisternum І (2a) 51 (41–51), 32 (32–33) apart, tubercles 1b and 1a apart 10 (10–11), tubercles 1a and 2a 11 (11–12) apart. Prosternal apodeme 8 (7–8). Legs with usual series of setae. Leg І 38 (38–40), femur 13 (13–14), basiventral femoral seta (bv) 10 (10–11); genu 5 (4–5), antaxial genual seta (l ') 31 (30–32); tibia 11 (11–12), paraxial tibial seta (l ') 5 (5–6), located at center; tarsus 7 (6–7), seta ft ' 20 (20–23), seta ft ' 22 (19–22), seta u ' 5 (4– 5); tarsal empodium (em) 6 (6–7), simple, 4-rayed, tarsal solenidion (ω) 6 (6–7), knobbed. Leg І 33 (33–35), femur 9 (9–10), basiventral femoral seta (bv) 10 (10–11); genu 5 (4–5), antaxial genual seta (l ') 9 (8–9); tibia 8 (8– 9); tarsus 8 (8–9), seta ft ' 7 (6–7), seta ft ' 25 (24–25), seta u ' 4 (4–5); tarsal empodium (em) 6 (6–7), simple, 4- rayed, tarsal solenidion (ω) 6 (6–7), knobbed. Opisthosoma: dorsally with 26 (26–28) annuli, with filament microtubercles on rear annular margin, ventrally with 62 (62–63) annuli, with round microtubercles on rear annular margins. Setae c2 31 (30–31) on ventral annulus 11 (10–11), 73 (73–75) apart; setae d 62 (62–65) on ventral annulus 25 (25–26), 41 (41–42) apart; setae e 21 (21–23) on ventral annulus 43 (43–45), 20 (20–21) apart, setae f 28 (28–30) on 5th ventral annulus from rear, 27 (27–28) apart. Setae h1 4 (4–5), h2 83 (83–85). Female genitalia 16 (15–16), 25 (25–26) wide, coverflap with 12-14 longitudinal ridges, setae 3a 21 (21–25), 19 (19–20) apart.

MALE: (n = 1) Body fusiform, 190, 68 wide; light yellow. Gnathosoma 20, projecting obliquely down, pedipalp coxal seta (ep) 2, dorsal pedipalp genual seta (d) 8, cheliceral stylets 18. Prodorsal shield 50, 62 wide, median, admedian and submedian lines incomplete, with large granules at lateral margin; anterior shield lobe broad. Scapular tubercles near rear shield margin, 30 apart, scapular setae (sc) 5, projecting posterior. Coxigenital region with 8 microtuberculated annuli. Coxal plates with granules, anterolateral setae on coxisternum І (1b) 10, 14 apart, proximal setae on coxisternum І (1a) 20, 8 apart, proximal setae on coxisternum І (2a) 31, 28 apart, tubercles 1b and 1a apart 8, tubercles 1a and 2a 7 apart. Prosternal apodeme 7. Legs with usual series of setae. Leg І 35, femur 10, basiventral femoral seta (bv) 10; genu 4, antaxial genual seta (l ') 21; tibia 10, paraxial tibial seta (l ') 4, located at center; tarsus 6, seta ft ' 15, seta ft ' 18, seta u ' 4; tarsal empodium (em) 5, simple, 4-rayed, tarsal solenidion (ω) 5, knobbed. Leg І 30, femur 8, basiventral femoral seta (bv) 8; genu 4, antaxial genual seta (l ') 8; tibia 6; tarsus 7, seta ft ' 5, seta ft ' 20, seta u ' 4; tarsal empodium (em) 6, simple, 4-rayed, tarsal solenidion (ω) 6, knobbed. Opisthosoma: dorsally with 26 annuli, with filament microtubercles on rear annular margin, ventrally with 57 annuli, with round microtubercles on rear annular margins. Setae c2 21 on ventral annulus 11, 57 apart; setae d 52 on ventral annulus 22, 31 apart; setae e 16 on ventral annulus 36, 17 apart, setae f 22 on 5th ventral annulus from rear, 21 apart. Setae h1 2, h2 58. Male genitalia 21 wide, setae 3a 13, 17 apart.

Type material. Holotype, female (slide number NJAUAcariEriH66, marked Holotype), from Angelica sp. ( Apiaceae ), Jiagedaqi, Heilongjiang Province, P. R. China, 50°24'27''N, 124°06'43''E, elevation 365m, 17 July 2008, coll. Xiao-Feng Xue, Zhen Wang & Zi-Wei Song. Paratypes, 5 females (slide number NJAUAcariEriH16), with the same data as holotype .

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

Etymology. The specific designation angelica is from the generic name of the host plant, Angelica.

Differential diagnosis. This species is similar to Tetra peucedani Farkas, 1970 , from Peucedanum alsaticum L. ( Apiaceae ), but can be differentiated from the latter by the prodorsal shield with median, admedian and submedian lines and granules (prodorsal shield smooth in T. peucedani ) and dorsal annuli with filament microtubercles (dorsal annuli smooth in T. peucedani ).