Juxtacolopodacus phalakros Flechtmann & De, 2010, n. sp.
Creators: name: Flechtmann, Carlos H. W.
name: De, Dalva L.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Juxtacolopodacus
Juxtacolopodacus phalakros

description: Juxtacolopodacus phalakros n. sp.
(Fig. 1)
Female (n = 5). Body spindleform, elongate, 143(142–155), 62(54–62) wide. Gnathosoma projecting down, apical seta (d) not evident; basal seta (ep) 4(4); chelicerae 11(11–13). Prodorsal shield broad, 48(46–50), 60(53–60) wide, apparently smooth and with a hemispheric elevation or gibbosity, flattened out under the weight of the coverslip; the inverted U-shaped line could be the outline of this convexity. Scapular seta (sc) 6(5–6), on far lateral shield margin, 55(49–55) apart. Shield with a pronounced anterior lobe. Legs with femoral seta (bv) missing. Leg I 19 (18–20); femur 9(8–9), femoral seta (bv) absent; genu 3(3), genual seta (l”) 21(21–24); tibio-tarsus 5(5–6), dorsal seta (ft’) 12(12–13), lateral seta (ft”) 14(14–16), unguinal seta (u’) geniculate, 4(4), solenidion displaced laterally, 5(4–5), blunt, empodium 4(4), 6-rayed. Leg II 18 (15–18), femur 9(8–9), bv 12(11–14); genu 3(3), l” 8(6–9); tibio-tarsus 4(4), ft’ 5(6), ft” 16(15–17), u’ geniculate, 3(3), solenidion 9(9–10), in normal dorsal position, empodium 4(4), 6-rayed. Coxae I partially granulated, well separated; coxae II smooth. Coxal seta I (1b) 4(3–5), 12(10–12) apart; coxal seta II (1a) 8(6–8), 9(9) apart; coxal seta III (2a) 13(12–22), 20(20–24) apart. Coxisternal region smooth. Genitalia 21(19–21) wide, 15(11–15) long; epigynum basally granulated, distally with one curved transverse line parallel to rear border and a few broken equally curved and transverse lines; genital seta (3a) 8(7–11). Opisthosoma with a large dorsomedian trough with a median ridge extending from shield rear margin to dorsad of second ventral seta (e), and two strong lateral ridges extending over entire opisthosomal length. With 27(27–28) dorsal annuli, smooth; and 45(43–45) ventral annuli, microtuberculate as represented in fig. 1V. Lateral seta (c2) 11(11–16), on annulus 3(3–4). Ventral seta I (d) 45(36–48), 25(24–26) apart, on annulus 13(11–13); ventral seta II (e) 12(11–13), 12(11–12) apart, on annulus 23(22–24); ventral seta III (f) 12(11–13), 18(14–18) apart, on annulus 39(37–39) or 7(7)th from rear. Caudal seta (h2) 25(23–27); accessory seta (h1) minute.
Male. Not seen.
Type material. Female holotype and 4 female paratypes, from Mollinedia clavigera Tul. (Monimiaceae), Jardim Botânico, Curitiba, Paraná, Brazil, 25º26’S and 49º14’W, 0 2 July 2008, collected by Dalva L. de Queiroz, on 3 microscopic preparations in the collection of Departamento de Entomologia e Acarologia, ESALQ – Universidade de São Paulo, Piracicaba, São Paulo, Brazil.
Relation to host. Leaf vagrants; no apparent damage.
Etymology. The specific designation phalakros comes from Greek, meaning bald headed, smooth and refers to the smooth prodorsal shield.
description: Published as part of Flechtmann, Carlos H. W. & De, Dalva L., 2010, New taxa in the Eriophyidae (Acari, Prostigmata) from forest trees in southern Brazil, pp. 18-30 in Zootaxa 2337 on pages 19-20, DOI: 10.5281/zenodo.193221