Four new species of Lorryia (Acari: Tydeidae) associated with Hevea brasiliensis Muell. Arg. (Euphorbiaceae) in Brazil
Author
Mondin, Alexandre De Souza
Author
Nuvoloni, Felipe Micali
Author
Feres, Reinaldo José Fazzio
text
Zootaxa
2016
4158
4
473
490
journal article
38291
10.11646/zootaxa.4158.4.2
11f3d570-ee2c-4cce-9dc7-2efbc38416d9
1175-5326
255413
853F4191-0254-4696-9E98-30212712838F
Lorryia fortistriata
sp. nov.
(
Figs. 6
; 7; 11A; 11B)
Diagnosis.
Lorryia fortistriata
sp. nov.
has acute and smooth dorsal setae. The dorsal ornamentation is characterized by the absence of reticulation, with dense striated pattern. Palptarsus eupathidium (pζ) straight and rounded distally.
Dorsum
(
Figs. 6
A; 11A): Prodorsum recurved. Twelve pairs of smooth and slightly curved setae, of medium length (
Fig. 6
D;
Fig. 11
B), and filiform, smooth trichobothria (
bo
) (
Fig. 6
E). Dense dorsal striation, which contains reduced space between its bands (
Fig. 6
F). Ornamentation
type
“
Tydeus
” (
Kaźmierski 1998
), without reticulated areas. Lyrifissure
ia
(
Fig. 6
B) lies posteriorly to
c2
, at the distance as long as distance between
c1
and
c2
. Lyrifissure
im
(
Fig. 6
C) lies in same longitudinal row as
ia
, anteriorly and close to
e
. Dimensions: length of idiosoma 200 (185–257) and width 138 (135–195). Dorsal setae:
ro
15 (10–15),
la
12 (10–13),
bo
34 (26–42),
ex
13 (10–14),
c1
13 (10–13),
c2
13 (9–13),
d
14 (11–14),
e
13 (11–13),
f1
13 (11–15),
f2
15 (12–15),
h1
15 (11–15),
h2
15 (10–15),
ps1
9 (5–11).
FIGURE 4
.
Lorryia amazonensis
sp. nov
..
A—Dorsum. B—Lyrifissure
ia
. C—Lyrifissure
im
. D—Dorsal seta
d
. E— Trichobothria (
bo
). F—Typical dorsal striation.
FIGURE 5
.
Lorryia amazonensis
sp. nov.
. A—Venter. B—Palptarsus. C—Coxa I, showing the coxal organ (
cg
). D—Tibia and tarsus of leg I and empodial hook lying under empodium (1).
FIGURE 6
.
Lorryia fortistriata
sp. nov.
. A—Dorsum. B—Lyrifissure
ia
. C—Lyrifissure
im
. D—Dorsal seta
d
. E—Trichobothria (
bo
). F—Typical dense dorsal striation.
FIGURE 7
.
Lorryia fortistriata
sp. nov.
. A—Venter. B—Palptarsus. C—Coxa I, showing the coxal organ (cg). D—Tibia and tarsus of leg I and empodial hook lying under empodium (1).
Venter (
Fig. 7
A)
: Ornamentation on metasternal region with “V” like striation, anogenital region with six pairs of genital, four pairs of aggenital and one pseudanal setae.
Gnathosoma (
Fig. 1
A, 1B)
: Gnathosoma visible from above. Palp setal count 6+1ω –2–2. Tarsal eupathidium straight and distally rounded, without terminal dilation. Palp length 43 (38-52), tarsus (
Fig 7
B) elongate, length 20 (19-20), width 4 (4-5).
Legs
: Nude leg setae. All tarsi with terminal claws and hairy empodium, empodial hook present (
Fig. 7
D). Solenidion ω I thin and of medium length, as long as two thirds of tarsal width. Solenidion ω II very short. Oval coxal organ (
Fig. 7
C). Small seta
k
on tibia I spatulated (
Fig. 7
D). Measures of each leg: leg I 129 (92-136), leg II 112 (75-115), leg III 118 (83-122), leg IV 129 (85-142).
Etymology.
The new species name derives from Latin words
forti
(strong) and
striatum
(striation), for remarkably dense dorsal striation, which contains reduced space between its bands.
Specimens
examined
.
Holotype
female from
H. brasiliensis
, clone FDR 5788 from
Igrapiúna
,
Bahia
State (
13° 48' S
,
39° 10' W
),
19 November 2008
,
E. B. Castro
coll.
;
6 paratypes
females from
H. brasiliensis
, clone FDR 5788, from
Igrapiúna
,
Bahia
State, collected on
October and November 2008
,
E. B. Castro
coll. Specimens deposited at
Acari
collection DZSJRP.
Male
not found.
Remarks.
The new species resembles
Lorryia devexa
(
Kuznetzov, 1973
)
due to the pattern of striation
type
“
Tydeus
”
, similar body dimensions (about 200 µm of length and 135 µm of width), palpal tarsi longer than stylet, acute and smooth dorsal setae, short
f1
setae (shorter than
f1–h1
distance), lyrifissure
ia
at the distance as long as
c1-c2
sector to
c2
. The species are distinguished by the following characters: dorsal setae of the same length (
ro, la
and
ex
2-4 µm shorter than the other dorsal setae in
L. devexa
); “V-like” striation between metasternal setae (longitudinal striation between metasternal setae in
L. devexa
); small and delicate empodial hook (large and strong empodial hook in
L. devexa
); solenidion ω I as long as 2/3 of tarsus I width (shorter solenidion I in
L. devexa
, as long as 1/3 of tarsus width).