New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from cultivated plants from northeastern Brazil, including the second taxon in the Prothricinae Author Reis, Aleuny Coutinho Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Agronomia, Recife, Brazil; Author Jr, Manoel Guedes Corrêa Gondim Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Agronomia, Recife, Brazil; Author Flechtmann, Carlos Holger Wenzel CNPq-Brazil-Researcher, Universidade de São Paulo-ESALQ, Departamento de Entomologia e Acarologia, Piracicaba, Brazil; Author Navia, Denise Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil text Journal of Natural History 2014 2014-03-05 48 19 1135 1152 journal article 21051 10.1080/00222933.2013.862574 be157984-b43b-42c4-aeb5-6c2682bab7e0 1464-5262 4006817 881522D7-5288-49B4-9C34-B3E316ABEE20 Thamnacus paubrasil Reis and Navia , sp. nov. ( Figures 5 and 6 ) Diagnosis Thamnacus sp nov. is distinct in having a short posterior lobe extending over the first opisthosomal annulus; dorsal opisthosoma with transverse thickened bands; coverflap with granules on the proximal area and longitudinal and radial lines. It differs from T.separabilis Huang, 2001 and T.vacuus Huang, 2001 in the smooth dorso-opisthosomal annuli (microtuberculated in these species). It also differ from other Thamnacus species in the six-rayed empodium (six paired and one unpaired apical in T.euphorbiae Channabasavanna, 1966 , five-rayed in T.acanthae Umapathy, 1999 , seven-rayed in T.elaeagnae Umapathy, 1999 , and four-rayed in T.rhamnicolus ( Keifer, 1938 ) , T. solani Boczek and Michalska, 1989 , T.separabilis and T.vacuus ). Female (n = 10) Body fusiform, 155 (143–179), 51 (49–60) wide; Gnathosoma down-curved, 21 (20– 22); basal seta ( ep ) 2 (2–3); antapical seta ( d ) 5 (4– 5) long, not branched. Prodorsal shield 38 (38–41), 49 (44–54) wide, smooth, with a posterior lobe (or projection) extending over the first 1–2 opisthosomal annulus. Scapular seta ( sc ) 16 (14–16), on prominent tubercles, starting a little under the posterior lobe, 22 (21–24) apart. Frontal lobe broad-based, apically rounded with three spines, 6 (6– 7), 17 (17–20) wide. Legs with all segments; all setae present except for tibial seta ( l' ) on leg II. Leg I 25 (24–26); femur 8 (7–9), femoral seta ( bv ) 7 (7–9); genu 4 (4– 5), genual seta ( l ″ ) 20 (18–21); tibia 5 (4–5), tibial seta ( l ′ ) 5 (4–6); tarsus 5 (4–6), lateral seta ( ft ″ ) 12 (12–20), dorsal seta ( ft ′ ) 14 (14–16), unguinal seta ( u ′ ) 4 (4–5), solenidion ( ω ) 9 (9–10), blunt, empodium simple 5 (5–6), six-rayed, apically bifurcate. Leg II 22 (21–24); femur 8 (6–8), bv 7 (7–8); genu 4 (3–4), l ″ 5 (5–6); tibia 3 (3–4); tarsus 5 (4–5), ft ″ 18 (16–18), ft' 5 (5–6), u ′ 3 (3–4), ω 9 (9); empodium simple 5 (5–6), six-rayed. Coxae I with irregular lines. Sternal line 6 (5–6). Coxigenital region with 3 (3) annuli, microtuberculated. Coxal seta I ( 1b ) 6 (5–6), 9 (9–13) apart; coxal seta II ( 1a ) 13 (13–16), 7 (7–11) apart; coxal seta III ( 2a ) 29 (26–33), 18 (18–23) apart. Genitalia 13 (11–13), 15 (15–18) wide; coverflap with granules on the proximal area and 7 (7–8) longitudinal and radial lines of unequal length near posterior margin; genital seta ( 3a ) 11 (11–14). Opisthosoma 20 (20–21) dorsal annuli, broad, without microtubercles, with a longitudinal middorsal ridge and two lateral ridges fading above the level of ventral seta III ( f ). Ventral annuli with elongated microtubercles, 48 (46–53). Lateral seta ( c 2 ) 16 (16–20), on annulus 4 (3–4). Ventral seta I ( d ) 40 (35–44), on annulus 16 (15– 17), 28 (28–39) apart, 19 (19–22) microtubercles apart; ventral seta II ( e ) 10 (8– 11), on annulus 30 (27–31), 13 (13–19) apart, 7 (7–11) microtubercles apart; ventral seta III ( f ) 13 (13–15), on annulus 44 (42–49), 10 (10–12) apart, 9 (7–9) microtubercles apart. Caudal seta ( h 2 ) 43 (43–54); accessory seta ( h 1 ) 2 (1–2). Figure 5. Thamnacus paubrasil sp. nov. CGM, coxigenital region, male; D, dorsal habitus, female; em, empodium, leg I, female; LM, lateral habitus, female; L1, leg I, female; L2, leg II, female; V, ventral habitus, female. Figure 6. Thamnacus paubrasil sp. nov. (A) Dorsal habitus, female; (B) ventral habitus, female; (C) lateral habitus, female; (D) leg I and II, female; (E) epigynum; (F) genitalia, male; (G) empodium, female. Male (n = 5) Smaller than female, 121–136, 44–49 wide. Gnathosoma 17–21; basal seta ( ep ) 3 (2– 3); antapical seta ( d ) 3–4; chelicerae 15–16. Prodorsal shield as in female, 33–37, 41– 42 wide. Scapular seta ( sc ) 12–14, 18–19 wide. Legs as in female. Leg I 22–24; femur 7–8, femoral seta ( bv ) 6–7; genu 16–18, genual seta ( l ″ ) 4–5; tibia 4–5; tarsus 5, lateral seta ( ft ″ ) 16–17, dorsal seta ( ft ′ ) 14–15, unguinal seta ( u ′ ) 3–4, solenidion ( ω ) 8–9; empodium simple 5–6, six-rayed. Leg II 20–23; femur 7–8, bv 6–7; genu 3, l ″ 4– 5; tibia 3–4; tarsus 5, ft ″ 15–16, ft ′ 5, u ′ 3, ω 9–10; empodium 5–6, six-rayed. Coxae as in female. Sternal line 5–6. Coxisternal region with 3–4 annuli, with granules. Coxal seta I ( 1b ) 5, 8–9 apart; coxal seta II ( 1a ) 12–13, 6–9 apart; coxal seta III ( 2a ) 27–31, 15–19 apart. Genitalia 9–10, 12 wide, eugenital setae as figured; genital seta ( 3a ) 9–10. Opisthosoma as in female, 20–21 dorsal annuli; 37–41 ventral annuli. Lateral seta ( c 2 ) 17–19, on annulus 2–3. Ventral seta I ( d ) 30–35, on annulus 10–12, 24–26 apart, 15–19 microtubercles apart; ventral seta II ( e ) 7–8, on annulus 20–23, 11–12 apart, 7–9 microtubercles apart; ventral seta III ( f ) 11–12, on annulus 33–37, 9–11 apart, 7–9 microtubercles apart. Caudal seta ( h 2 ) 31–48; accessory seta ( h 1 ) 1–2. Type material Female holotype , 15 female and six male paratypes , from Caesalpinia echinata Lam. (Caesalpiniaceae) , Recife, Pernambuco , Brazil , 08°01 ′ 07 ″ S , 34°56 ′ 41 ″ W , 15 October 2009 , collected by A.C. Reis, on five microscope slides. Holotype and paratypes ( 16 specimens , 11 females and five males, on three microscope slides) deposited in the collection of the Laboratório de Acarologia, Departamento de Agronomia, Universidade Federal Rural de Pernambuco , Recife, PE, Brazil . Paratypes (five specimens, four females and one male, on two microscope slides) also deposited in the collection of Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil . Relation to host No visible damage. Etymology The specific name “ paubrasil ” refers to the common name given to the host plant, Caesalpinia echinata . Redescription