A Revision of the New Zealand GenusStenosagolaBroun, 1921 (Coleoptera: Staphylinidae: Pselaphinae: Faronitae)
Author
Park, J. - S.
Author
Carlton, C. E.
text
The Coleopterists Bulletin
2013
2013-09-30
67
3
335
359
http://dx.doi.org/10.1649/0010-065x-67.3.335
journal article
10.1649/0010-065X-67.3.335
1938-4394
10100754
Stenosagola fiordlandensis
Park and Carlton
,
new species
Type Material.
Holotype
.
NEW ZEALAND
:
FIORDLAND (
FD
):
♂
(wingless male, slidemounted), “
NEW
ZEALAND
FD Resolution I Disappointment Cove
26 May 1982
”, “
C.F.Butcher Sifted
litter 82/61”, “Duplicate specimens in alcohol”, “
N.Z. Arthropod Collection
,
NZAC
Private Bag 92170
AUCKLAND
New Zealand”, “
HOLOTYPE
Stenosagola fiordlandensis
Park and Carlton
des. 2013”.
Paratypes
(
n
=
4 females
).
NEW ZEALAND
:
FIORDLAND (
FD
):
3♀♀
(
1♀
, slide-mounted), same data as holotype (
NZAC
);
1♀
, Resolution I,
Disappointment Cove
,
29
V
1982,
C.F. Butcher
, baited sifted litter 82/64 (
NZAC
)
.
Etymology.
This species is named after the
type
locality, Fiordland (FD).
Diagnosis.
Specimens of
S. fiordlandensis
are similar in appearance to those of other members of the
connata
group but can be distinguished by the shape of the male genitalia (
Fig. 12f
) and the frontal rostral lobe of female head bearing a pair of blunt processes (
Fig.
12g
).
Description.
Length
1.2–1.3 mm
(
Fig. 7d–e
).
Head
: Wingless male head approximately 1.43 times, female 1.42 times longer than wide. Wingless male eye approximately 1.50 times, female 0.53 times longer than temple. Frontal rostral lobe of female head bearing pair of blunt processes with setae present (
Fig.
12g
). Frontal fovea of female head indistinct (
Fig.
12g
). Winged male antennomeres 3 subquadrate, 4–5 longer than wide, 6–7 subquadrate, 8 slightly transverse, 9–10 transverse. Female antennomeres 3–8 subquadrate, 8 smaller than 7, 9–10 transverse.
Thorax
: Pronotum as long as wide. Wingless male elytra approximately 1.36 times, female 1.34 times longer than pronotum. Wingless male meso- and metaventrites trapezoidal, approximately 1.25 times, female 1.22 times longer than pronotum.
Aedeagus
: Median lobe long and slender (
Fig. 12f
). Parameres symmetrical, setae present anteriorly (
Fig. 12f
).
Table 1.
Numbers of specimens and phenotype proportions of
Stenosagola
species.
Winged males |
Wingless males |
Females |
Species (# of specimens) |
(% of total) |
(% of total) |
(% of total) |
gracilis
group
|
Stenosagola gracilis
(261)
|
137 (53%) |
24 (9%) |
100 (38%) |
Stenosagola pseudogracilis
(37)
|
17 (46%) |
13 (35%) |
7 (19%) |
Stenosagola clarkei
(2)
|
n/a |
2 |
n/a |
Stenosagola egmontensis
(6)
|
n/a |
3 |
3 |
Stenosagola ramsayi
(12)
|
5 (42%) |
3 (25%) |
4 (33%) |
Stenosagola domettensis
(14)
|
n/a |
11 |
3 |
Stenosagola eylesi
(2)
|
n/a |
2 |
n/a |
Stenosagola stewartensis
(1)
|
n/a |
1 |
n/a |
connata
group
|
Stenosagola connata
(40)
|
8 (20%) |
20 (50%) |
12 (30%) |
Stenosagola huiaensis
(14)
|
13 |
n/a |
1 |
Stenosagola northlandensis
(31)
|
21 (68%) |
1 (3%) |
9 (29%) |
Stenosagola thayerae
(30)
|
22 (73%) |
3 (10%) |
5 (17%) |
Stenosagola dugdalei
(8)
|
7 |
1 |
n/a |
Stenosagola tararuaensis
(9)
|
n/a |
7 |
2 |
Stenosagola haunuiensis
(2)
|
n/a |
2 |
n/a |
Stenosagola pseudoconnata
(12)
|
9 (75%) |
2 (17%) |
1 (8%) |
Stenosagola chandleri
(31)
|
n/a |
26 |
5 |
Stenosagola nunni
(58)
|
27 (47%) |
4 (6%) |
27 (47%) |
Stenosagola newtoni
(2)
|
1 |
1 |
n/a |
Stenosagola butcheri
(3)
|
2 |
1 |
n/a |
Stenosagola fiordlandensis
(5)
|
n/a |
1 |
4 |
Distribution.
Fiordland (FD),
New Zealand
(
Fig. 14
, white square).
Habitat.
All specimens were collected by sifting forest litter.