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
Priceiella
(
Torosinirmus
)
koka
Gustafsson & Bush
,
new species
(
Figs 307–314
,
318
)
Type host.
Turdoides tenebrosa
(Hartlaub, 1883)
—dusky babbler.
Type locality.
Koka, Ethiopia.
Diagnosis.
Priceiella
(
Torosinirmus
)
koka
n. sp.
is most similar to
Pr
. (
Ts.
)
nivea
(
Ansari, 1956a
)
, with which it shares the long parameres [
Fig. 313
; parameres of
Pr
. (
Ts.
)
brueliodes
much shorter, broader]. In both
Pr
. (
Ts.
)
koka
and
Pr
. (
Ts.
)
nivea
the divergent part of the paramere is shorter, compared to the convergent part, than
in
Pr
. (
Ts.
)
brueliodes
.
Priceiella
(
Ts.
)
koka
(
Figs 307–308
) also shares the larger number of pterothoracic setae with
Pr
. (
Ts.
)
nivea
. Moreover, the antennae of
Pr
. (
Ts.
)
koka
(
Figs 309–310
) and
Pr
. (
Ts.
)
nivea
are sexually dimorphic, which is not the case for
Pr
. (
Ts.
)
brueliodes
.
The most significant difference between
Priceiella
(
Torosinirmus
)
koka
and
Pr
. (
Ts.
)
nivea
is the shape of the mesomere, which in the latter species is rounded both anteriorly and posteriorly, whereas the mesomere of
Pr
. (
Ts.
)
koka
(
Fig. 312
) is broader and entirely flat anteriorly, and more angular posteriorly. Males separated by the setae of tergopleurite IX+X [
2
in
Pr
. (
Ts.
)
nivea
,
3–4 in
Pr
. (
Ts.
)
koka
] and the unequal size of the setae of the genital opening in
Pr
. (
Ts.
)
koka
, but equal size of all setae
in
Pr
. (
Ts.
)
nivea
.
Females of all three species cannot be reliably identified presently. The differences in genital setae [5
vms
and 6
vss
on each side
in
Priceiella
(
Torosinirmus
)
nivea
, 4
vms
and 9
vss
on each side
in
Pr
. (
Ts.
)
brueliodes
, and 3–5
vms
and 5–7
vss
on each side in
Pr
. (
Ts.
)
koka
] may seem reliable, but Ansari’s (1956a) descriptions are based on single specimens of each species, and thus potential overlap between his
Pr
.
(
Ts.
)
brueliodes
,
Pr
.
(
Ts.
)
nivea
, and
Pr
. (
Ts.
)
koka
is likely underestimated. Differences in abdominal chaetotaxy between the three species may also be illusory, for the same reason. However,
Pr
. (
Ts.
)
koka
(
Fig. 309
) generally has a flatter frons than either of the other two species. Adequate comparison between females of the three species must await additional collections from the
type
hosts of
Pr
. (
Ts.
)
nivea
and
Pr
. (
Ts.
)
brueliodes
.
FIGURES 307–308.
Priceiella
(
Torosinirmus
)
koka
n. gen., n. subgen.
& n. sp.
ex
Turdoides tenebrosa
:
307,
male habitus, dorsal and ventral views.
308,
female habitus, dorsal and ventral views.
FIGURES 309–314.
Priceiella
(
Torosinirmus
)
koka
n. gen., n. subgen.
& n. sp.
ex
Turdoides tenebrosa
:
309,
male head, dorsal and ventral views.
310,
female antenna, ventral view.
311,
male genitalia, dorsal view.
312,
male mesosome, ventral view.
313,
male paramere, dorsal view.
314,
female subgenital plate and vulval margin, ventral view.
FIGURES 315–318.
Pleurites IV–V of male, including lateral end of sternite, dorsal view (ventral structures shown with dotted lines):
315
,
Priceiella
(
Priceiella
)
sternotypica
(Ansari, 1956a)
n. comb.
316,
Priceiella
(
Camurnirmus
)
hwameicola
n. gen., n. subgen.
& n. sp. 317,
Priceiella
(
Thescelovora
)
alliocephala
n. gen.
, n. sungen. & n. sp. 318,
Priceiella
(
Torosinirmus
)
koka
n. gen.
, n. sugen. & n. sp.
Description.
Both sexes
. Head shape, structure, and chaetotaxy as in genus and subgenus descriptions and
Fig. 309
. Preantennal nodi moderate. Coni much short, broad, not reaching distal margin of scapes. Antennae sexually dimorphic (
Figs 309–310
). Preocular nodi moderate. Postocular nodi small. Gular plate short, squat. Thoracic and abdominal segments as genus and subgenus descriptions and
Figs 307–308
. Tergopleurites largely translucent, but with weak pigmentation lateral to spiracle openings. Sternal plates III–VI and subgenital plates of both sexes with weak pigmentation. Pleurites not modified as in other
Priceiella
(
Fig. 318
).
Male
. Scape long, slightly swollen, curved posteriorly (
Fig. 309
). Pteronotum with 8–9 posterior setae on each side (
Fig. 307
). Abdominal plates and chaetotaxy as in
Table 8
and
Fig. 307
. Tergopleurite IX+X with 3–4 setae clustered submedianly. Setae of genital opening of unequal size, with lateral 2 setae 3–4 times as long as median seta.
Male
genitalia as in
Figs. 311–313
. Basal apodeme roughly rectangular, lateral margins straight or only slightly concave. Proximal mesomere short, broad, not overlapping with basal apodeme; anterior margin flat. Primary mesomeral lobes broad, gently rounded, somewhat angular in some specimens. Lateral and distal margins thickened, but thickening not sinuous and do not extend medianly towards the gonopore (
Fig. 312
). Ventral side with small protruding nodi near distal margin. Distal margin of mesomere convergent to median point. Parameral heads small, blunt. Parameral blades (
Fig. 313
) stout, divergent in distal third only. Measurements ex
Turdoides tenebrosa
(n = 7): TL = 1.21–1.40; HL = 0.35–0.37; HW = 0.33–0.36; PRW = 0.20–0.24; PTW = 0.35–0.38; AW = 0.49–0.52.
Female
. Scape as in
Fig. 310
. Pteronotum with 4–6 posterior setae on each side (most specimens with 5 on each side) (
Fig. 308
). Abdominal plates and chaetotaxy as in
Table 8
and
Fig. 308
. Subgenital plate roughly triangular (
Fig. 314
). Vulval margin (
Fig. 314
) gently rounded, with 3–5 slender
vms
on each side, and 5–7 thornlike
vss
on each side; 4–5
vos
on each side; distal
vos
located on cross-piece, just anterior to
vss
. Measurements ex
Turdoides tenebrosa
(n = 10): TL = 1.61–1.75; HL = 0.36–0.42; HW = 0.35–0.39; PRW = 0.21–0.25; PTW = 0.35– 0.39; AW = 0.49–0.58.
Etymology.
The species name is derived from the
type
locality.
Type
material.
Ex
Turdoides tenebrosa
:
Holotype
♂
,
Koka
,
Ethiopia
,
18 Dec. 1960
,
S. Brelih
, IM-7402 (
PMSL
)
.
Paratypes
:
5♂
,
4♀
, same data as holotype, IM-7 401, IM-7403, IM-6405–14 (
PMSL
)
;
2♂
,
5♀
,
Awassa
,
Ethiopia
,
5 Nov. 1960
,
S. Brelih
, IM-3199–3205 (
PMSL
)
.