Taxonomic revision of Brazilian genus Tyrannoseira Bellini & Zeppelini, 2011 (Collembola, Entomobryidae, Seirinae)
Author
Cipola, Nikolas Gioia
Author
Morais, José Wellington De
Author
Godeiro, Nerivania Nunes
Author
Bellini, Bruno Cavalcante
text
Zootaxa
2019
2019-04-17
4586
2
201
248
journal article
https://doi.org/10.11646/zootaxa.4586.2.1
6c299d03-ac2c-45de-add8-c07f618d7a48
1175-5326
2644360
F83F9DE6-5DD1-4FD2-8C2E-C01A7F49E870
Tyrannoseira diabolica
Bellini & Godeiro, 2012
Figs 1E
,
19–23
,
34
Tyrannoseira diabolica
Bellini & Godeiro, 2012: 81
, figs. 1–13 (orig. descr.).
Type
locality.
Brazil
,
Rio Grande do Norte
state,
Parnamirim
,
Barreira do Inferno
.
Other references:
Zeppelini &
Lima
2012: 41–43
(species compared).
Type material examined.
Holotype
female,
paratypes
1 male
,
8 females
and
1 juvenile
(MNRJ/3170), examined before of fire in
September 2018
.
Typological note.
One
paratype
was designed as female in original description and we correct it here as it is a juvenile. All type material of
T. diabolica
deposited at
MNRJ
was destroyed in fire in
September 2018
.
Diagnosis.
Body pale with irregular purple pigment on Ant distally and Th II to Abd IV (
Fig. 1E
); Ant III without sens type–
f
(
Fig. 19A
); head chaetotaxy with
An
3i
mic,
An
3i
2
and
A4
absent and with 1 posterior mac (
Pe3
) (
Fig. 19B
); clypeus with
l2
acuminate,
f2
smaller (
Fig. 19C
); outer labral papilla subequal to inner papillae (as
Fig. 8E
); postlabial formula with 3 chaetae below ‘J’ row (
Fig. 19D
); Th II with 6 anterior mac (
a4+
,
a
4i
,
a5
,
a5p
,
a
5i
,
a
5i
2
),
m
1i
and
p
1i
2
mac absent,
p1ip
mac present,
p2ea2
mic present (
Fig. 20A
); Th III with 2 lateral mac (
a6
,
m6
) (
Fig. 20B
); Abd IV with 4–5 antero-central mac (
A3a
,
A3
,
B3
,
C1
,
T1
) and 4 mac (
Fe2–5
) in
Fe
series (
Fig. 21A
); trochanteral organ with 18 spine-like chaetae (
Fig. 22D
); leg I of males with 6–8 thin femoral spines and 4 finely ciliate tibiotarsal spines (
Fig. 22E
); collophore anteriorly with 3 apically acuminate mac and 1 distal mac, posteriorly with 1 spine and 1 distal smooth chaeta (
Fig. 23A
); manubrium ventral formula with 1, 0, 2, 0/ 2 and 12 ciliate chaetae, manubrial plate with 3 psp (
Figs 23
B–C).
Redescription.
Total length (head + body) of the
holotype
1.25 mm. Colour pale yellow with purple pigment on distal Ant III–IV, one dark spot laterally on anterior head, and Th II to Abd I, and weakly on Abd II–IV; eyepatches black (
Fig. 1E
). Scales present on Ant I to basal half of Ant III, dorsal and ventral head, dorsally on Th and Abd, legs (except claws), anterior collophore, and ventrally on manubrium and dens.
Antennal ratio as I: II: III: IV = 1: 1.89: 1.85: 2.96. Ant III apical organ with 2 sens
type
a
, 3 guard sens (
type
d
), sens of different sizes (
type
b –d
) and chaetae
types
g –h
; sens type–
f
absent (
Fig. 19A
). Eyes A and B larger, G smaller, others subequal (
Fig. 19B
). Head dorsal chaetotaxy with 11 ‘An’, 5 ‘A’, 5 ‘M’, 5 ‘S’, 3 ‘Ps’, 6 ‘Pa’, 2 ‘Pm’, 6 ‘Pp’ and 2 ‘Pe’ chaetae (
Fig. 19B
). Clypeal formula with 4 (
l1–2
), 4 (
f1–2
), 3 (
pf0–1
) ciliate chaetae,
l2
larger,
l1
apically acuminate,
f2
smaller, others subequal (
Fig. 19C
). Outer labral papillae subequal to inner papillae (as
Fig. 8E
). Ventral chaetotaxy with 13 ciliate chaetae, anterior postlabial formula with 4 (
G1–4
), 2 (
H2–3
), 3 (
J1–3
) plus 3 chaetae below ‘J’ series, basal chaeta (
b.c.
) larger (
Fig. 19D
).
Thoracic chaetotaxy (
Figs 20
A–B). Th II, series ‘a’, ‘m’ and ‘p’ with 8, 11 and 17–18 chaetae, respectively (
m
1i
and
p
1i
2
absent). Th III, series ‘a’, ‘m’ and ‘p’ with 8, 5 and 8 chaetae, respectively. Th II: III ratio as 1.43: 1.
Abdominal chaetotaxy (
Figs 20
C–E,
21
A–B). Abd I, series ‘a’, ‘m’ and ‘p’ with 5, 5 and 2 mic, respectively. Abd II, series ‘a’, ‘m’ and ‘p’ with 5, 7 and 3 chaetae, respectively; chaeta
el
present, bothriotricha
a5
and
m2
with 5 and 3–4 accessory chaetae, respectively. Abd III, series ‘a’, ‘m’ and ‘p’ with 6, 6 and 5–6 chaetae, respectively; 4 accessory chaetae around bothriotrichum
m2
, and 10 between bothriotricha
a5
and
m5
. Abd IV with 8–9 medial mac of series ‘A’ to ‘T’ (
A3a –3
,
A5
,
B3–6
,
C1
,
T1
), and 12–14 lateral mac of series ‘E’ to ‘Fe’ (
E2–4p
,
Ee10
,
F1– 3
,
Fe2–5
); postero-medial face with 4 sens and 4 posterior mes. Abd V, series ‘a’, ‘m’, ‘pa’, ‘p’ and ‘pp’ with 4, 6, 3, 7 and 3 chaetae, respectively. Abd III: IV ratio as 1: 4.33.
Legs with subcoxa I carrying 3 ciliate chaetae and 2 psp; subcoxa II with an anterior row of 9 chaetae, posterior row with 3 chaetae and 3 psp; subcoxa III with one row of 7 chaetae and 2 posterior psp (
Figs 22
A–C). Trochanteral organ with 18 spine-like chaetae (
Fig. 22D
). Femur I of males with 6–8 thin spines (
Fig. 22E
). Tibiotarsus I with one row of 9 inner chaetae, 4 proximal spines finely ciliate (3 short and 1 larger) and 5 distal spine-like mac heavily ciliate and apically acuminate (
Fig. 22E
). Unguis with median tooth marginally larger than basal teeth, apical tooth smaller; ratio unguis:unguiculus = 1:0.50. Tibiotarsus III with “smooth” chaeta subequal to unguiculus; tenent hairs 1.08 larger than ungues outer face (as
Fig. 12G
). Collophore (
Fig. 23A
) with anterior face carrying 10 chaetae, 1 mac and 1 distal mes of unequal size, 4 longer and acuminate and 4 proximal spine-like chaetae; posterior face with 2 chaetae, 1 spine and 1 distal smooth chaeta; lateral flap with about 7 smooth and 7 ciliate chaetae. Furcula (
Fig. 23
B–C). with ventral manubrium of formula 1, 0, 2, 0/ 2 (subapical) and 12 (apical) ciliate chaetae, apical inner chaeta smaller; dorsal manubrial plate with 4 ciliate chaetae and 3 psp.
Remarks.
Tyrannoseira diabolica
resembles
T. sex
in having reduced pigment and in general morphology. Differences between these species are given in
Table 1
.