Morphological revision of the hyperdiverse Brueelia - complex (Insecta: Phthiraptera: Ischnocera: Philopteridae) with new taxa, checklists and generic key
Author
Bush, Sarah E.
text
Zootaxa
2017
2017-08-31
4313
1
1
443
journal article
32249
10.11646/zootaxa.4313.1.1
d8cc2cd8-8410-49aa-a75d-7a41d9f52b26
1175-5326
883161
A5Fdfba5-F992-44A8-84C2-1756C943C19B
Sturnidoecus
mon
Gustafsson & Bush, new species
(
Figs 406–414
)
Type
host.
Euplectes hordeaceus
(
Linnaeus, 1758
)
—
black-winged bishop
.
Type
locality.
Lovi
,
Mole
,
Northern
Region
,
Ghana
.
Diagnosis.
Sturnidoecus
mon
n. sp.
is the only known species in its group, and is separated from all other
Sturnidoecus
by the shape of the male genitalia (
Figs 389
,
411–413
). Apart from
St
.
mon
, the only
Sturnidoecus
species-groups with largely flat posterior margins of the mesosome are the
St
.
porphyrogenitus
(
Fig. 391
) and
St
.
simpl
ex (
Fig. 394
) species-groups, however apart from this superficial similarity, these three species groups are very different in the male genitalia.
Sturnidoecus
mon
is the only known species in the genus with a clearly defined, subterminal gonopore (
Fig. 410
), an irregular, somewhat frayed-looking anterior margin of the proximal mesosome, and paired ventral rectangular flaps of the anterior mesosomal lobes. Females can only be distinguished from other species of
Sturnidoecus
by the median bulge of the vulval margin (
Fig. 412
).
Description.
Both sexes
. Head shape, structure, and chaetotaxy as in genus description and
Fig. 408
;
as1
absent. Preantennal nodi not broader than marginal carinae, not distinct. Coni slender, reaching just beyond distal margin of scapes. Preocular nodi small, square-shaped. Postocular nodi not distinct;
pos
located at posterior margin of eye. Gular plate broad, very angular. Thoracic and abdominal segments as in genus description and
Figs 406– 407
. Posterior margin of pterothorax rounded in both sexes. Sternal plates large, present on segments II–VI in both sexes.
Male
. Abdominal chaetotaxy as in
Table 11
and
Fig. 406
.
Male
genitalia as in genus and species group descriptions and
Figs 409–411
. Measurements ex
Euplectes hordeaceus
(n = 5): TL = 1.14–1.22; HL = 0.38–0.41; HW = 0.37–0.42; PRW = 0.21–0.23; PTW = 0.30–0.36; AW = 0.44–0.47.
Female
. Abdominal chaetotaxy as in
Table 11
and
Fig. 407
. Subgenital plate roughly triangular, lateral margins irregular distally (
Fig. 412
). Vulval margin bulging distinctly in median section (
Fig. 412
), with 3–4 short slender
vms
on bulging section on each side, and 8–10 thorn-like
vss
on each side; 5–7 long, slender
vos
on each side; distal 1–2
vos
median to
vss
. Measurements ex
Euplectes hordeaceus
(n = 2): TL = 1.33–1.41; HL = 0.42– 0.44; HW = 0.42–0.43; PRW = 0.23 –0.24; PTW = 0.36–0.38; AW = 0.52–0.59.
Etymology.
The species epithet is derived from Japanese “
mon
” for “gate”, as the overall shape of the mesosome and parameres (
Fig. 409
) resemble the stylized shape of the Japanese
torii
gates.
Type
material.
Ex
Euplectes hordeaceus
:
Holotype
♂
,
Lovi
,
Mole
[
National Park
],
Northern
Region
,
Ghana
,
26 Aug. 1968
,
Oxford University Expedition
, Brit. Mus. 1969-32 (
NHML
)
.
Paratypes
:
9♂
,
4♀
, same data as holotype (
NHML
)
.