Revision of the Afrotropical flea beetle subgenus Blepharidina s. str. Bechyné (Coleoptera, Chrysomelidae)
Author
Iannella, Paola D’Alessandro Mattia
Author
Biondi, Maurizio
text
Zootaxa
2019
2019-01-16
4545
1
journal volume
27649
10.11646/zootaxa.4545.1.2
d8036fa9-32eb-4c5f-bdb2-428d22250ea8
1175-5326
2618635
1D2EC333-517D-4FC1-A0AA-61EDD8BE8BEE
Blepharidina matabelelandensis
sp. nov.
(
Figs 14
,
24
,
50
,
61
,
69
)
urn:lsid:zoobank.org:act:
642DEF0E-0B5B-4B50-9373-708721B6B9A5
Type material
.
Holotype
♂
: “
Zimbabwe
,
50 km
S of
Bulawayo
(
20°33'S
28°36'E
),
Matobo Nat. Park
,
3– 5.xii.1995
,
S. Bečvář
leg.” (
BAQ
)
.
Paratype
.
ZIMBABWE
:
Lonely
(
Lonely Mine
,
19°30'S
28°45'E
),
H. Swale
leg.,
1 ♀
(
BMNH
)
.
Diagnosis
.
Blepharidina matabelelandensis
sp. nov.
shows clear affinities with
B. himba
sp. nov.
These two species share similar size, habitus, color pattern (
Figs 7
,
14
), and a very slender aedeagus with laterally widely rounded apical part in ventral view (
Figs 43
,
50
).
B. matabelelandensis
sp. nov.
can be easily distinguishable from
B. himba
sp. nov.
by the: darker integuments; different arrangement of the pronotal punctures, with three lateral groups and a small basal medial group (two lateral groups and an elongate medial group in
B. himba
sp. nov.
) (
Figs 21, 24
); aedeagus in ventral view fusiform from base to subapical part (clearly tapered in
B. himba
sp. nov.
) (
Figs 43
,
50
).
Description of the
holotype
(
♂
). Body elliptical-elongate, rather convex (
Fig. 14
); LB =
7.88 mm
; maximum pronotal width (WP =
3.13 mm
) in basal third; maximum elytral width (WE =
4.25 mm
) in middle. Head brown with pale clypeus and labrum; antennae yellowish; pronotum with several yellow patches, and brown and black areas; elytra mostly blackish, with numerous yellow patches on interstriae; legs brown, with paler tarsi. Head distinctly pubescent, roughly and densely punctate; frontal grooves short, distinctly impressed near upper ocular margin; frontal tubercles small, paler than head, weakly raised; interantennal space distinctly wider than length of first antennomere; interocular space wider than transverse ocular width; antennae slightly longer than half body length (LAN =
4.50 mm
; LAN/LB = 0.57); LA: 100:40:79:84:105:90:95:87:79:76:84. Pronotum (
Fig. 24
) subrectangular, moderately transverse (LP =
1.81 mm
; WP/LP = 1.72), with clearly sinuate lateral margin; anterior margin slightly thicker than basal margin, and clearly sinuate laterally; anterior angles distinctly prominent laterally; pronotal surface with lines and groups of differently sized punctures, with no striae of punctures in middle; pronotal base with two lateral, distinctly impressed, longitudinal striae. Scutellum brown, subrounded, moderately elongate. Elytra moderately elongate (LE =
6.13 mm
; WE/LE = 0.69; LE/LP = 3.38), subparallel laterally, jointly rounded and entirely covering pygidium posteriorly; punctation deeply impressed, arranged in 9 (+ 1 scutellar) regular rows; interstriae distinctly carinate laterally and posteriorly. First pro- and mesotarsomeres distinctly dilated; tarsal claws bifid. Ventral parts brown; last abdominal ventrite without distinctive preapical impressions. Aedeagus (LAED =
3.59 mm
; LE/LAED = 1.70) (
Fig. 50
) in ventral view fusiform from base to subapical part; apical part widely rounded, with a median tooth; ventral sulcus deep, open towards basal part; in lateral view, aedeagus straight in basal 2/3s, then distinctly curved dorsally, with apex ventrally bent; dorsal ligula connected to about apical fourth, with slightly carinate basal surface.
FIGURES 50–54.
Blepharidina
s. str.
species aedeagus, from left to right in ventral, dorsal, and lateral view: 50,
B
.
matabelelandensis
sp. nov.
, holotype; 51,
B
.
ornaticollis
(Jacoby)
, from Ramisi River, Kenya; 52,
B
.
partita
(Jacoby)
, from Solwezi, Zambia; 53,
B
.
picta
(Kolbe)
, from Mikindani, Tanzania; 54,
B
.
regalini
sp. nov.
, holotype.
FIGURES 55–67.
Blepharidina
s. str.
species spermatheca: 55,
B
.
burtli
(Bryant)
, lectotype; 56,
B
.
carinata
(Bryant)
, paralectotype from Angola; 57,
B
.
delineata
(Bryant)
, lectotype; 58,
B
.
guttulata
(Baly)
lectotype; 59,
B
.
intermedia
(Jacoby)
, from Bagamoyo, Tanzania; 60,
B
.
macarthuri
(Bryant)
, from Usambara, Tanzania; 61,
B
.
matabelelandensis
sp. nov.
, paratype from Lonely, Zimbabwe; 62,
B
.
ornaticollis
(Jacoby)
, from Ramisi River, Kenya; 63,
B
.
partita
(Jacoby)
, from Huila region, Angola; 64, ditto, from Democratic Republic of The Congo; 65,
B
.
picta
(Kolbe)
, from Lindi region, Tanzania; 66,
B
.
regalini
sp. nov.
, paratype from Taveta, Kenya; 67,
B
.
rudeli
(Weise)
, lectotype.
Variation
.
Paratype
(female) similar in shape, sculpture and color to the
holotype
. Tarsi not dilated. Spermatheca (
Fig. 61
) with piriform, thick, very sclerotized basal part; distal part short and thin, clearly bent; ductus apically inserted, very thick, with S-shaped distal part. Morphometry in Appendix 2.
Etymology
. The female specific epithet is after
Matabeleland
, the
Zimbabwe
region where the species was collected.
Distribution
.
Zimbabwe
(
Fig. 69
). Possibly Central Afrotropical (CAT) chorotype.
Ecological notes
. Not available. The collection site falls within the area of Miombo & Associated Broadleaf Savanna (belonging to the Tropical Lowland Grassland, Savanna & Shrubland formation).