Cothrix erugata, Reis, Aleuny C., Gondim, Manoel G. C., Navia, Denise & Flechtmann, Carlos H. W., 2011

Reis, Aleuny C., Gondim, Manoel G. C., Navia, Denise & Flechtmann, Carlos H. W., 2011, New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil — two new genera and three new species, Zootaxa 3042, pp. 15-26 : 17-19

publication ID

https://doi.org/ 10.5281/zenodo.206677

DOI

https://doi.org/10.5281/zenodo.6191736

persistent identifier

https://treatment.plazi.org/id/039587DD-FFE5-FFA2-FF6E-E1D428940031

treatment provided by

Plazi

scientific name

Cothrix erugata
status

gen. nov.

Cothrix erugata n. gen. et n. sp. Reis & Navia

( Figs. 1 View FIGURE 1 & 2 View FIGURE 2 )

FEMALE (n=10). Body fusiform, 197 (174–197), 69 (63–78) wide; yellowish in life. Gnathosoma downcurved, 19 (18–20); basal seta (ep) 4 (3–4); antapical seta (d) moderately long and bifurcate 11 (11–12); chelicerae 10 (10– 12). Prodorsal shield 55 (48–55), 60 (53–63) wide, subtriangular; median line extending over 1/3 anterior shield; admedian lines on the 3/4 anterior shield, sinuous, subparallel; submarginal lines parallel to the antero lateral shield margin, curved inwards latero-posteriorly; a concave, transversal line or ridge crossing over 1/4 anterior of prodorsal shield, subparallel to submarginal line. Frontal lobe broad-based, anteriorly rounded. Scapular seta (sc) 5 (5–6), on prominent, transversal tubercles placed ahead of rear prodorsal shield margin and directed upwards, 25 (22–28) apart. Legs with all usual segments; all normal setae present except for tibial seta (l') on leg II. Leg I 30 (28–30); femur 8 (8–9), femoral seta (bv) 9 (7–9); genu 5 (5), genual seta (l") 21 (18–21); tibia 8 (7–8), tibial seta (l') 3 (2–3); tarsus 5 (4–5), lateral seta (ft") 17 (16–17), dorsal seta (ft') 16 (15–17), unguinal seta (u') 4 (4), solenidion (ω) 5 (5), empodium 5 (4–5), 3-rayed, apically bifurcate. Leg II 30 (27–30); femur 8 (8), bv 7 (7); genu 5 (4–5), l" 6 (6–8); tibia 7 (6–7); tarsus 5 (5), ft" 15 (15–16), ft' 4 (3–4), u' 3 (3–4), ω 5 (4–5); empodium 5 (4– 5), 3-rayed, apically bifurcate. Coxae I and II finely granulated. Sternal line 9 (8-10). Coxal seta I (1b) absent; coxal seta II (1a) 10 (9–10), 7 (6–7) apart; coxal seta III (2a) 20 (20–26), 26 (21–26) apart; coxigenital annuli not discernible. Genitalia 14 (14–17), 21 (20–21) wide, coverflap basally with short, irregular dashes and granules, distally with longitudinal broken lines; genital seta (3a) 11 (11). Opisthosoma 31 (30–31) dorsal annuli with a longitudinal middorsal and two lateral ridges extending until level of ventral seta III (f); microtubercles on dorsal annuli elongated, largely restricted to median region, more numerous on first 5 or 6 annuli and gradually decreasing in number along ridge with last 5 annuli (telesoma) completely microtuberculated; 61 (54–61) ventral annuli finely microtuberculated; microtubercles slightly elongated. Presence of loosely arranged microtubercles on area between anterior dorsal and ventral annuli. Lateral seta (c2) 8 (8–10), on annulus 2 (1–3). Ventral seta I (d) 17 (56– 60), on annulus 15 (13–15), 33 (26–33) apart, 28 (24–29) microtubercles apart; ventral seta II (e) 8 (8–11), on annulus 34 (29–34), 14 (10–14) apart, 11 (9–15) microtubercles apart; ventral seta III (f) 18 (16–18), on annulus 56 (49–56), 18 (18–23) apart, 27 (20–28) microtubercles apart. Caudal seta (h2) 31 (30–31); accessory seta (h1) absent. MALE (n=5). Smaller than female, 162–172, 59–66 wide. Gnathosoma 18–20; basal seta (ep) 3; antapical seta (d) moderately long and bifurcate 11–13; chelicerae 10–11. Prodorsal shield as in female, 45–50, 55–60 wide. Scapular seta (sc) 4–5, 22–26 apart. Legs as in female. Leg I 28–30; femur 8–9, femoral seta (bv) 7–8; genu 5, genual seta (l") 18–19; tibia 8, tibial seta (l') 2–3; tarsus 4–5, lateral seta (ft") 15–16, dorsal seta (ft') 14–15, unguinal seta (u') 4, solenidion (ω) 5; empodium 4–5, 3-rayed. Leg II 27–29; femur 8, bv 7–8; genu 4–5, l" 5–7; tibia 7; tarsus 4–5, ft" 13–14, ft' 4–5, u' 3–4, ω 4–5; empodium 4–5, 3-rayed. Coxae apparently smooth. Sternal line 9–10. Coxal seta I (1b) absent; coxal seta II (1a) 10–12, 5-8 apart; coxal seta III (2a) 23–25, 18–20 apart, 4 coxigenital annuli, without microtubercles. Genitalia 11–13, 13–14 wide, posterior region without granules, eugential seta as figured; genital seta (3a) 7–8. Opisthosoma as in female, 27–29 dorsal annuli; 51–55 ventral annuli. Lateral seta (c2) 9–11, on annulus 2. Ventral seta I (d) 18, on annulus 12–13, 21–24 apart, 17–23 microtubercles apart; ventral seta II (e) 10–11, on annulus 26–28, 9–10 apart, 10–14 microtubercles apart; ventral seta III (f) 14–16, on annulus 48–50, 19–21 apart, 18–23 microtubercles apart. Caudal seta (h2) 37; accessory seta (h1) absent.

Type material. Holotype, 40 female and 16 male paratypes, collected from Heliconia stricta Huber (Heliconiaceae) , Recife, Pernambuco, Brazil. 08°01'07"S, 34°56'41"W, 2 February 2009, coll. A.C. Reis, on 12 microscope slides. Holotype and paratypes (40 specimens: 31 females and 9 males, on 9 microscope slides) deposited in the collection of the Departamento de Agronomia, Entomologia Agrícola, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil. Paratypes (16 specimens: 9 females and 7 males, on 3 microscope slides) deposited in the collection of the Laboratório de Quarentena Vegetal, Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brazil.

Relation to host. A vagrant on the lower leaf surface. No damage symptoms were present.

Etymology. The specific designation, erugata , is derived from the Latin erugo, erugatus, meaning clear of wrinkles, smooth and refers to the absence of annuli in the coxigenital region of the female.

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