The discovery of Lepidocyrtoides Schött, 1917 (Collembola, Entomobryidae, Entomobryinae) from the New World, including three new species from Brazil and one from Australia
Author
Bellini, Bruno Cavalcante
text
Zootaxa
2017
2017-09-27
4324
2
201
248
journal article
31981
10.11646/zootaxa.4324.2.2
44a73c43-0528-43c8-a1df-dff6458eee3e
1175-5326
997632
1Ff9Ac2E-96Ae-4352-9D5F-85Bd3C639E4A
Lepidocyrtoides colormutatus
sp. nov.
Cipola & Bellini
FigS 1B–D
,
11–15
Diagnosis.
Body completely dark blue (adultS), except diStal part of the appendiceS and whole antennae (
Fig. 1B
); dorSal head with 1 median and 1 Sutural mac,
Pp5
mac preSent; labral papillae reduced or abSent; baSomedian and baSolateral labial fieldS with chaetae
M1–2
,
R
,
E
,
L1–2
ciliate; 5 anterior poStlabial chaetae ciliate pluS 3 Spine-like chaetae (
FigS 11D
,
12D–E
); Th II with 18–21 anterior and 4 poSterior mac; Th III–Abd III with 0, 1(lateral), 3 and 1 median mac reSpectively; Abd IV with 16–20 median mac and 12 lateral mac (
FigS 13
,
14A–B
); trochanteral organ with about 98 Spine-like chaetae; ungueS without apical tooth; unguiculuS I truncate, II–III acuminate; manubrial plate with 2 blunt mac; dorSal denS with 2 proximal rowS of unilaterally ciliate chaetae (
FigS 15D–E, H
).
Type
Material.
Holotype
male on
Slide
(064/
INPA
):
Brazil
,
AmazonaS
, ManauS municipality,
ReServa Ducke
,
Grid L
6,
02°58’07”S
,
59°56’24”W
,
Amazon foreSt
,
81 m
,
23.ix‒04.xi.2014
,
MalaiSe trap
,
SS Azevedo
coll.
Paratype
on Slide (064A/
INPA
):
1 male
, Same data aS
holotype
.
ParatypeS
on SlideS (064B-E/
INPA
): 2 maleS
,
1 female
and
1 juvenile
, and
1 Specimen
in alcohol,
Same
data aS
holotype
, except
02°55’48”S
,
59°58’27”W
,
03‒05.vi.2016
, DRR FernandeS coll.
Additional material.
1 female
on
Slide
(
INPA
):
Brazil
,
AmazonaS
,
Tefé
municipality,
Community
“
Bom
JeSuS”, road of “
EMADE
”, km 21,
03°25’19”S
,
64°37’05”W
,
Amazon foreSt
,
63 m
,
5‒17.ix.2016
,
MalaiSe trap
,
JA Oliveira
, DMM MendeS &
JA Rafael
coll. 3 SpecimenS in alcohol (
INPA
):
Brazil
,
Roraima
, Caracaraí municipality,
Parque Nacional do Viruá
, in
Grid L
4,
01°27’34”N
,
61°00’57”W
,
Amazon foreSt
,
70 m
,
21.ix‒9.x.2012
and
16.i‒6.ii.2013
,
Pitfall-trap
,
IPS
SantoS coll.
Description.
Total length (head + trunk) of SpecimenS
2.69–3.62 mm
(n=4),
holotype
3.62 mm
. Adult SpecimenS with body completely dark blue, except tibiotarSi, diStal collophore and part of the Abd I–IV forming longitudinal bandS; orange pigmentS on antennae (except diStal Ant IV) and apex of the Th II; and denteS pale yellow to white (
Fig. 1B
). Subadult SpecimenS pale yellow to white with dark blue pigment on diStal Ant IV, head, Th II, Abd III–V, coxae to femora, and proximal manubrium (
Fig. 1C
). JuvenileS SpecimenS pale yellow to white with dark blue pigmentS on diStal Ant IV, head, Abd IV poSteriolly on a tranSverSal band, and diStal femora (
Fig. 1D
). ScaleS preSent on Ant I to proximal Ant IV, dorSal and lateral head, thorax and abdomen dorSally, legS (except empodia), collophore anteriorly, manubrium and denteS ventrally (
FigS 11A–B, F
).
Head. Antennae Shorter than trunk length (
FigS 1B–D
), ratio antennae: trunk = 1: 1.27–1.59 (n=4),
holotype
1: 1.35; antennal SegmentS ratio aS I: II: III: IV = 1: 1.54–1.64: 1.38–1.58: 2.42–2.65,
holotype
I: IV = 1: 1.57 (without II–III). Ant IV annulated on diStal three quarterS, without apical bulb, with S-blunt SenS of different SizeS and ciliate chaetae (
Fig. 11C
). Ant III SenSe organ with 2 rodS, 3 Spiny guard SenSilla, S-blunt SenS and ciliate chaetae (
Fig. 12A
). Ant I dorSally with 2 mac and 3 Smooth mic at baSe (Similar to
L. caeruleomaculatus
sp. nov.
,
Fig. 5C
). Head dorSal chaetotaxy with 11 antennal (An), 4 anterior (A), 3 median (M), 1 Sutural (S), 1 poSt-Sutural (PS), 2 poStoccipital anterior (Pa) and 1 poStoccipital poSterior (Pp) chaetae (
Fig. 12D
). EyeS G and H Smaller, B larger, otherS Subequal, with 7 interocular chaetae and 3 ScaleS (
FigS 12D
). Clypeal formula with 4 (l1–2), 8–10 (frontal), 5 (pf0–2) ciliate chaetae, l1–2, pf0–1 larger, 1 frontal Smaller, otherS Subequal (
Fig. 12B
). Prelabral chaetae Smooth (
Fig. 12B
); labrum with chaeta a1 not thick, p0–1 larger. Labral papillae reduced or abSent. Maxillary palp with Smooth apical appendage (a.a.) and baSal chaeta (b.c.) Subtly ciliated, thick and 0.87 Smaller in length than the apical; Sublobal plate with three Smooth appendageS (
Fig. 12E
). Labial palp with five main papillae (A–E) pluS one hypoStomal papilla (H) with 0, 4, 0, 4, 3, 2 guard appendageS, reSpectively, lateral proceSS (l.p.) apically pointed and not reaching the baSe of the papilla E (
Fig. 12C
). BaSolateral and baSomedian labial fieldS with chaetae
M1–2
,
R
,
E
,
L1–2
ciliate,
M2
and
R
Smaller (
Fig. 12E
). Ventral head with numerouS ciliate chaetae of different SizeS, 5 anterior poStlabial chaetae pluS 3 Spine-like mic; cephalic groove with about 18 Surrounding ciliate chaetae, 2 median mic, 2 larger baSal chaetae (b.c.), otherS Subequal (
Fig. 11D
,
12E
).
Thorax chaetotaxy (
FigS 11E
,
13A–B
). Th II with 21–24 antero-median chaetae, 18–21 mac, 2 meS and 1 mic; poSteriorly with 4 median mac. Th III with 4 main lateral meS (
m5
,
p4–6
) and 2 mic. Ratio Th II: III = 3.66–2.35: 1 (n=4),
holotype
3.66: 1.
Abdomen chaetotaxy (
FigS 11F
,
13C–D
,
14A–C
). Abd I laterally with 1 mac (
m5
) and 1 meS (
p6
). Abd II with 3 central mac (
a2
,
m3–3e
) and 3 lateral mac (
m5–6
,
p6
), bothriotricha
a5
and
m2
with 8 and 7 acceSSory ScaleS reSpectively. Abd III with 1 central mac (
m3
) and 3 lateral mac (
am6
,
pm6
and
p6
), bothriotricha
a5
,
m2
and
m5
with 8, 6 and 12 acceSSory ScaleS reSpectively, and 11 lateral meS. Abd IV with 16–20 median mac, 12 lateral mac, 22 acceSSory ScaleS between bothriotricha
T2
and
T4
, 8 poSterior SenS (
as
and
ps
type
I, otherS
type
II), and aproximatelly 28 poSterior meS. Abd V with SerieS ‘a’, ‘m’ and ‘p’ with 4, 3 and 5 chaetae reSpectively. Ratio Abd III: IV = 1: 6.27–8.64 (n= 4),
holotype
1: 8.64.
FIGURE 11A–G.
Lepidocyrtoides colormutatus
sp. nov.
:
A–B
, tergal scales;
A
, scale apically rounded;
B
, oval and apically truncate accessory scale of abdominal bothriotrichum;
C
, apex of Ant IV (dorsal view);
D
, part of anterior postlabial chaetotaxy (right side), arrow indicates spine-like chaeta;
E
, apex of Th II projection;
F
, lateral chaetotaxy of Abd III (left side),
am6
,
pm6
and
p6
as mac,
m5
bothriotrichum,
ms
S-microchaeta,
acc.p6
accessory sens of
p6
chaeta, arrow indicates accessory scales of bothriotrichum;
G
, distal dens and mucro (lateral view).
A–B
(0.01 mm),
C–G
(0.02 mm).
FIGURE 12A–E.
Lepidocyrtoides colormutatus
sp. nov.
: head;
A
, Ant III apical organ (lateral side);
B
, chaetotaxy of the clypeus and prelabrum;
C
, labial palp;
D
, dorsal cephalic chaetotaxy;
E
, chaetotaxy of the maxillary outer lobe and sublobal plate, proximal chaetae (
p.c.
), basomedian and basolateral fields, anterior postlabial and cephalic groove regions (left side), lateral chaetae omitted.
FIGURE 13A–D.
Lepidocyrtoides colormutatus
sp. nov.
: dorsal chaetotaxy;
A
, Th II, arrow points to variation of anterior mac;
B
, Th III;
C
, Abd I;
D
, Abd II.
FIGURE 14A–C.
Lepidocyrtoides colormutatus
sp. nov.
: dorsal chaetotaxy;
A
, Abd III;
B
, Abd IV, arrow points to variation of posterior mac;
C
, Abd V.
FIGURE 15A–H.
Lepidocyrtoides colormutatus
sp. nov.
:
A
, subcoxa I;
B
, subcoxa II;
C
, subcoxa III (outer side);
D
, trochanteral organ (posterior side);
E
, distal tibiotarsus and empodial complex III (posterior view);
F
, collophore chaetotaxy (lateral view);
G
, manubrium ventro-distal chaetotaxy;
H
, distal manubrium and proximal dens (lateral view).
LegS. Subcoxa I (outer Side) with 3 chaetae and 4 pSp; Subcoxa II with an anterior row of 20 chaetae pluS 26 chaetae anteriorlly, poSterior row of 7 chaetae and 6 pSp; Subcoxa III with one row of 14 chaetae, 17 anterior chaetae and 2 pSp poSteriorlly (
FigS 15A–C
). Trochanteral organ with about 98 Spine-like chaetae (
Fig. 15D
). Femora I–III with 2 acuminate inner chaetae gently ciliate. TibiotarSi I–III not Subdivided, chaetotaxy Similar to
L. caeruleomaculatus
sp. nov.
(
Fig. 9E–G
). UngueS outer Side with a pair of large laterobaSal teeth; inner Side with 3 teeth, 2 paired baSal and 1 unpaired median of Same Size than baSal, apical tooth abSent. UnguiculuS I truncate, II– III acuminate, all edgeS Smooth; ratio unguiS: unguiculuS = 1: 0.72. TibiotarSuS III diStally with one inner Smooth chaetae 0.67 Smaller than unguiculuS; outer Side with tenent hair capitate, Smooth and 0.78 Smaller than unguiS outer edge (
Fig. 15E
).
Collophore. Anterior Side with 8 ciliate chaetae, 6 mac and 1 meS diStally, and 1 thin proximal chaeta; poSterior Side with about 82 ciliate chaetae, 1 unpaired proximal mac and 17 meS (2 unpaired), 1 unpaired proximal mac and 17 meS (2 unpaired), 7 Small proximal SpineS, 41 thin and 16 Smaller chaetae widely diStributed, and diStally 1 thick Smooth chaeta; lateral flap with about 25 chaetae, 7 Smooth and 18 ciliate (
Fig. 15F
).
Furcula. Ventral manubrium with 11 Subapical long ScaleS on one tranSverSe row, about 18 apical ScaleS and 5 diStal ciliate chaetae, inner chaeta Smaller (
Fig. 15G
). Manubrial plate with 2 blunt mac gently ciliate and apically bullet-like, 15 ciliate chaetae of different SizeS and 2 pSp. DorSal denS with 2 proximal rowS of unilaterally ciliate chaetae, otherS normal (
Fig. 15H
). Mucro bidentate with apical tooth Subequal to proximal tooth, baSal Spine not SurpaSSing the apex of the proximal tooth (
Fig. 11G
).
Etymology.
ReferS to the color change (from Latin:
color
and
mutatus
––in change) in the StageS of development of the immature to adult of the new SpecieS (
FigS 1B–D
).
Remarks.
Lepidocyrtoides colormutatus
sp. nov.
reSembleS
L. bicolorangelus
sp. nov.
by body heavily pigmented of dark blue, dorSal head with 1 median and 1 Sutural mac and
Pp5
mac preSent; Th II with 4 poSterior mac; Th III–Abd III with 0, 1(lateral), 3 and 1 median mac, reSpectively, and manubrial plate with 2 blunt mac. However,
L. colormutatus
sp. nov.
differS from thiS SpecieS by baSomedian labial field with
M2
chaeta (abSent in
L. bicolorangelus
sp. nov.
), 4 anterior poStlabial Spine-like chaeta (
3 in
L. bicolorangelus
sp. nov.
), trochanteral organ with about 98 Spine-like chaetae (
48 in
L. bicolorangelus
sp. nov.
), unguiculuS III acuminate (truncate in
L. bicolorangelus
sp. nov.
) and dorSal denS with rowS of unilaterally ciliate chaetae, while in
L. bicolorangelus
sp. nov.
there iS 1 proximal blunt ciliate chaetae and the unilaterally ciliate chaetae are abSent. DorSal chaetotaxy of
L. colormutatus
sp. nov.
Still differS by Th II with 18–21 anterior mac, and Abd IV with 16–20 median mac, white
L. bicolorangelus
sp. nov.
haS 9–21 anterior mac on Th II and 12–16 median mac on Abd IV.