Identification and character analysis of the Acerentomidae (Protura) of the northeastern Palearctic (Protura: Acerentomidae)
Author
Shrubovych, Julia
text
Zootaxa
2014
3755
2
136
164
journal article
46612
10.11646/zootaxa.3755.2.2
acfc0c4f-a91d-4244-b034-3314528fb476
1175-5326
228438
2BA7877A-8CDF-4658-A789-F18EE565422B
Key to
Protura
known from northeastern Asia
1 Spiracles present on mesonotum and metanotum............................................... (Eosentomata) ...2
- Spiracles absent … (Acerentomata)....................................................................... 3
2 Pseudoculus with three round granules, tergites VII and VIII with 6
A
-setae....................
Eosentomon tshergense
- Pseudoculus without inner structures, tergite VII with 8
A
-setae, tergite VIII with 4
A
-setae.............
Eosentomon asahi
3 Abdominal appendages I–III two-segmented (
Hesperentomidae
)..........................
Hesperentomon martynovae
- Abdominal appendages I–II or only I two-segmented........................................................ 4
4 Second pair of abdominal legs two-segmented (
Protentomidae
).............................
Proturentomon stebaevae
- Second pair of abdominal legs one-segmented (
Acerentomidae
)................................................ 5
5 Striate band reduced, striae indistinct or absent.............................................................. 6
- Striate band well developed, striae distinct................................................................. 10
6 Labial palpi reduced to sensillum and three setae.............................................. (
Baculentulus
) … 7
- Labial palpi well developed with terminal tuft of setae and a sensillum........................
Tuxenentulus solncevae
7 Tergite VIII with 16 posterior setae, head seta
d6
present....................................
Baculentulus potapovi
- Tergite VIII with 15 posterior setae, head seta
d6
absent...................................................... 8
8 Tergite VII with 4 pairs of
A
-setae, with
P1a
and
P3a
setae present, sternite VIII with 6 setae........
Baculentulus borealis
- Tergite VII with 3 pairs of
A
-setae, with
P1a
and
P3a
setae absent, sternite VIII with 4 setae........................ 9
9 Sternite I with 4
P
-setae, sternite XI with 6 setae.........................................
Baculentulus loxoglenus
- Sternite I with 2
P
-setae, sternite XI with 4 setae..........................................
Baculentulus pomorskii
10 Mesonotum and metanotum with 2 pairs of
A
-setae...........................................
Sugaentulus andrzeji
- Mesonotum and metanotum with 3 or 4 pairs of
A
-setae...................................................... 11
11 Mesonotum and metanotum with 3 pairs of
A
-setae......................................................... 12
- Mesonotum with 3 pairs of
A
-setae, metanotum with 4 pairs of
A
-setae......................................... 25
12 Foretarsal sensillum
t1
filiform......................................................................... 13
- Foretarsal sensillum
t1
claviform............................................................ (
Yavanna
) … 21
13 Pronotum with 3 pairs of setae, calyx of maxillary gland heart-shaped, with strong papillae on large appendices.............................................................................................
Callientomon chinensis
- Pronotum with 2 pairs of setae, calyx of maxillary gland with or without appendices, papillae on appendices absent...... 14
14 Calyx of maxillary gland small and weakly granulated, foretarsal sensillum
t3
globular..................
Nienna parvula
- Calyx of maxillary gland large, heart-shaped and strongly granulated, foretarsal sensillum
t3
leaf-shaped............... 15
15 Foretarsal seta
β1
sensilliform; membranal pores on segments II–VI present.......................
Noldo submontanus
- Foretarsal seta
β1
setiform, membranal pores on segments II–VI absent (
Verrucoentomon
)
.......................... 16
16 Mesonotum and metanotum with
P2a’
setae, sternites IV–VI with 5
A
-setae.................................... 17
- Mesonotum and metanotum without
P2a’
setae, sternites IV–VI with 3
A
-setae.................................. 18
17 Tergite I with 16
P
-setae (seta
P3a’
present), foretarsal sensilla
c
and
e
broad...................
Verrucoentomon aurifer
- Tergite I with 14
P
-setae (seta
P3a’
absent), foretarsal sensilla
c
and
e
slender....................
Verrucoentomon joanis
18 Tergites I–VI with seta
P1a
, comb with straight hind margin................................................. 19
- Tergites I–VI without seta
P1a
, comb with concave hind margin...........................
Verrucoentomon louisanne
19 Sternite I with 2
P
-setae, sternite III with 5
P
-setae.....................................
Verrucoentomon kawakatsui
- Sternite I with 4
P
-setae, sternite III with 6
P
-setae......................................................... 20
20 Sternite VII with seta
Pc
, accessory setae on tergites I–VI long, setiform, head seta
d6
absent....
Verrucoentomon shirampa
- Sternite VII without seta
Pc
, accessory setae on tergites I–VI short, sensilliform, head seta
d6
presen.....................................................................................................
Verrucoentomon anatoli
21 Seta
P1a
present on tergites I–VII,
M2
present on prosternum, sternite III with 6
P-
setae, head seta
d6
present........... 22
- Seta
P1a
absent on tergites I–VI,
M2
absent on prosternum, sternite III with 5
P-
setae, head seta
d6
absent............. 23
22 Mesonotal setae
P1a
and
P2a
of distinctly different lengths, with
P2a
very short;
P4
on metanotum reduced, shorter than
P3a
; head setae
d7
and
sd7
equal in length, pronotal seta
1
about four times longer than seta
2.............
Yavanna chimitovae
- Mesonotal setae
P1a
and
P2a
of equal length,
P4
on metanotum longer than
P3a,
head seta
d7
longer than seta
sd7,
pronotal seta
1
twice the length of seta
2
............................................................
Yavanna baikalica
23 Foretarsal sensilla
b
and
c
nearly the same length, sensilla
b
and
a’
thin......................................... 24
- Foretarsal sensillum
b
about twice the length of
c
, sensilla
b
and
a’
thickened.........................
Yavanna altaica
24 Sternite VII with seta
Pc
, foretarsal sensilla
a, b
and
c’
about the same length, foretarsal seta
δ4
setiform.
Yavanna stebaevae
- Sternite VII without seta
Pc
, foretarsal sensilla
a
and
c’
clearly longer than
b,
foretarsal seta
δ4
thick and blunt..................................................................................................
Yavanna babenkoi
25 Foretarsal sensillum
t1
baculiform (
Yamatentomon
)......................................................... 26
- Foretarsal sensillum
t1
filiform........................................................................ 27
26 Tergite VII with seta
A4’
, prosternum with seta
M2.........................................
Yamatentomon yamato
- Tergite VII lacking seta
A4’,
prosternum without seta
M2
.................................
Yamatentomon kunnephupi
27 Calyx of maxillary gland small, metanotum without seta
A1
but with seta
A5
(
Filientomon
)........................ 28
- Calyx of maxillary large, heart-shaped with distinct granulation, metanotum with seta
A1
, without seta
A5
(
Nipponentomon
,
Imadateiella
)....................................................................................... 29
28 Seta
A1’
present on tergites I–VI,
A4’
present on tergite VII,
P3a
present on tergites II–VI, head seta
d6
absent........................................................................................
Filientomon duodecimsetosum
- Seta
A1’
absent on tergites I–VI,
A4’
absent on tergite VII,
P3a
absent on tergites II–VI, head seta
d6
present.................................................................................................
Filientomon sibiricum
29 Mesonotum and metanotum with
P2a’
setae............................................................... 30
-
Mesonotum and metanotum without
P2a’
setae........................................................... 31
30 Tergite I with seta
P0a
, tergite VII with
P1a
seta, sternite VII with seta
Pc
, sternite VIII with 6 setae, pores
sal
absent.........................................................................................
Nipponentomon taiga
-
Tergite I without seta
P0a
, tergite VII without
P1a
seta, sternite VII without seta
Pc
, sternite VIII with 4 setae, pores
sal
pres- ent on sternites II–VII...................................................................
Imadateiella murka
31 Tergite VI with seta
P1a
............................................................................... 32
- Tergite VI without seta
P1a
............................................................
Nipponentomon jaceki
32 Tergite VII with seta
P1a
............................................................................. 33
- Tergite VII without seta
P1a
..................................................
Nipponentomon khabarovskense
33 Labrum protruded, sternites I–III with 5
A
-setae, sternite III with 5
P
-setae......................
Nipponentomon nippon
- Labrum not protruded, sternites I–III with 3
A
-setae, sternite III with 6
P
-setae.................................. 34
34 Sternite VII with 5
A
-setae, sternite VI without seta
Pc
, claw with two inner teeth.............
Nipponentomon bidentatum
- Sternite VII with 3
A
-setae, sternite VI with seta
Pc
, claw with one inner tooth.....................
Imadateiella sharovi