The genus Neoseiulus Hughes (Mesostigmata: Phytoseiidae) in the Espinhaço Range, a great reservoir of biodiversity in Brazil
Author
Ferragut, Francisco
0000-0003-1545-6011
fjferrag@eaf.upv.es
Author
Navia, Denise
0000-0003-1545-6011
fjferrag@eaf.upv.es
text
Zootaxa
2022
2022-03-29
5120
4
523
542
journal article
20051
10.11646/zootaxa.5120.4.4
bf85911d-3c0f-4b62-acf3-34460eb1a63f
1175-5326
6392828
387A79A2-9F77-4FEA-9BBB-7B57343BB692
Neoseiulus benjamini
(
Schicha, 1981
)
Amblyseius benjamini
Schicha, 1981: 203
Amblyseius
(
Amblyseius
)
benjamini
.—
Ueckermann & Loots, 1988: 142
Neoseiulus benjamini
.—
Beard, 2001: 131
Specimens examined.
Four females,
3 males
on
Paspalum carinatum
(Poaceae)
;
one female
on
Andropogon leucostachyus
(Poaceae)
; pedestrian grasslands, Mucugê, Chapada Diamantina,
12º53’49”S
,
41º18’58”W
,
1125 m
asl;
19 January 2012
. One female on
Rhynchospora tenuis
(Cyperaceae)
; pedestrian grasslands, crossroad MG-010 with track Morro do Pilar, Morro do Pilar, Serra do Cipó,
19º13’12”S
,
43º29’04”W
,
1290 m
asl;
13 August 2011
.
Geographical distribution.
Southern Hemisphere,
Australia
,
Brazil
,
Chile
and
South Africa
, with one record in the French Caribbean isles (island of
Martinique
).
Additional description
(
six females
;
Figure 14A
). Dorsal shield 367 (348–379) long, 149 (141–153) wide. Length of setae
j1
15 (13–17),
j3
13 (11–14),
j4
9 (8–9),
j5
8 (7–9),
j6
9 (8–10),
J2
10 (9–11),
J5
10 (9–10),
z2
10 (9–11),
z4
10 (9–11),
z5
8 (7–9),
Z1
10 (10–11),
Z4
19 (17–22),
Z5
60 (57–63),
s4
11
(11–12),
S2
13
(12–15),
S4
19
(15–21),
S5
23
(19–25). Sublateral setae
r3
and
R1
placed on small sclerites;
r3
12 (9–14),
R1
10 (9–12). The soft integument between the dorsal and ventral shields also bears the solenostome
gd3
and the poroid
idR3
. Seven pairs of dorsal solenostomes, all small and punctiform, except
gd9
, which is large and horseshoe-shaped; sixteen pairs of poroids, with poroids
id4
,
idl1
,
idl4
and sometimes
is1
on the margin of the shield. Tip of the peritremes arriving to near the base of setae
j1
, though in the female from Serra do Cipó is slightly shorter; total length 194 (179–203); groove of the peritrematal shield with three lines of microvilli. Sternal shield 92 (91–93) long and 63 (62–64) wide. Epigynal shield 117 (111–120) long, distance
st5–st5
59 (57–61). Ventrianal shield 115 (104–121) long, 82 (76–87) wide at level of setae
ZV2
, 74 (69–77) wide at level of anus. Distance between solenostomes
gv3
15 (13–17). Posterior (primary) metapodal shield very long and narrow, being broader anteriorly and pointed posteriorly; 42 (40–44) long. Setae
JV5
on platelets, 28 (26–30). Genua II and III with 7 setae, setal formulae 2 2/0, 2/0 1 and 1 2/1, 2/0 1, respectively; tibia I with 10 setae (2 2/1, 2/1 2). Macroseta on basitarsus IV blunt, 24 (22–27) long.
Remarks
. The original description was based on a single female and male collected on the kikuyu grass
Pennisetum clandestinum
(Poaceae)
in
New South Wales
,
Australia
. Since then the species has been redescribed and illustrated several times, including the description of all the immature stages (
Ueckermann & Loots 1988
). Setal measurements in the examined specimens were similar to those obtained by
Kreiter
et al
. (2018)
from
Martinique
, but slightly longer to that of the female
holotype
and clearly shorter to those reported by
Lofego
et al
. (2009)
from mites collected in the state of
São Paulo
,
Brazil
. Although the females from
São Paulo
were similar in dorsal length and width with those examined in this study, the lengths of dorsal setae were about 30–60% longer, especially
j3
,
J2
,
z2
,
z4
,
s4
,
S2
,
S4
, and the sublaterals
r3
and
R1
.
According to the previous literature, the details of the dorsal adenotaxy and poroidotaxy are contradictory. The number of “dorsal pores” varies from two (
Schicha 1981
, in the original description) to four (
Peralta & Tello 2019
) or eight (
Ueckermann & Loots 1988
). In some cases, the description in the text does not match with the illustrations; the drawing of the dorsal shield by Schicha shows clearly the presence of six solenostomes, with absence of the gland pore
gd1
; in
Ueckermann & Loots (1988)
only
gd1
,
gd2
and
gd8
were depicted, and in
Peralta & Tello (2019)
the solenostomes
gd1
and
gd5
were not correctly placed on the dorsal shield, corresponding respectively to the poroids
id1
and
id6
. The redescription of the species by
Lofego
et al
. (2009)
did not mention the number of dorsal solenostomes, but the
Figure 1
of that publication shows the complete set of seven dorsal solenostomes. We consider that these discrepancies are due to the misidentification of the dorsal pores and poroids rather than intraspecific variability.
Another interesting feature not reported yet is the ornamentation of the female epigynal shield. All the females examined have the central-posterior area of the shield, between the lateral striae, covered by several striae forming a distinct V-shaped pattern, with an anterior and more weak triangular shape and three posterior and more pronounced triangles (
Figure 14A
). Usually this area is completely smooth in the
Phytoseiidae
, but apparently the ornamentation is characteristic in this species, since some authors depicted it in their drawings (
Ueckermann & Loots 1988
;
Lofego
et al
. 2009
), although none of them mention it.