New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil — two new genera and three new species
Author
Reis, Aleuny C.
Author
Gondim, Manoel G. C.
Author
Navia, Denise
Author
Flechtmann, Carlos H. W.
text
Zootaxa
2011
3042
15
26
journal article
46270
10.5281/zenodo.206677
4ee56fc9-c473-4cbe-989c-4c09c6b0772d
1175-5326
206677
Cothrix erugata
n. gen. et n. sp.
Reis & Navia
(
Figs. 1
&
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.
FIGURE 2.
Cothrix erugata
n. gen
.,
n. sp
.
A
. Dorsal habitus, female;
B.
Ventral habitus, female;
C
. Dorsal view of legs I and leg II, female;
D
. Ventral view of legs I and leg II, female;
E
. Detail of antapical seta (
d
) moderately long and bifurcate, female;
F
. Genitalia, male;
G
. Epigynum;
H
. Prodorsal shield, female.
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.