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 aliquantula
sp. nov.
(
Figs 1
,
26
,
38
,
68
)
urn:lsid:zoobank.org:act:
DC3DCC40-9994-4A33-AB3D-798DFF6D8842
Blepharidina (Blepharidina) burtli
(
Bryant)
:
Biondi
et al
. 2017: 129 (pars)
Type material
.
Holotype
♂
: “
Somalia
, Mogadiscio (
2°02'N
45°21'E
),
17.vi.1934
,
S. Patrizi
leg.” (MSNG).
Diagnosis
.
Blepharidina aliquantula
sp. nov.
shows major affinity with
B. kasigauensis
sp. nov.
and
B. regalini
sp. nov.
due to the similar shape of the aedeagus (
Figs 38
,
45
,
54
). However,
B. aliquantula
sp. nov.
has clearly smaller size, brighter color on the dorsal integuments (
Figs 1, 9
,
18
) and the aedeagus more distinctly bent dorsally at the apical third in lateral view (
Fig. 38
). The new species also differs from
B. kasigauensis
sp. nov.
for the antero-lateral part of pronotum (
Figs 26, 28
), visible in dorsal view (not visible in
B. kasigauensis
because downward oriented), and from
B. regalini
sp. nov.
, for the different punctation on the antero-lateral surface of pronotum (
Figs 26, 33
).
Description of the
holotype
(
♂
). Body elliptical-elongate, rather convex (
Fig. 1
); LB =
4.81 mm
; maximum pronotal width (WP =
2.03 mm
) in basal third; maximum elytral width (WE =
2.66 mm
) in middle. Head brown with yellowish antennae; labrum with lateral pale patches; pronotum with bright yellow and brown patches, latter mostly on groups and lines of punctures; elytra bright yellow with brown striae of punctures and some large and irregular brown patches (4 medial and 5 lateral); legs brown, with slightly paler tarsi. Head distinctly pubescent, roughly and densely punctate; frontal grooves short, weakly impressed; frontal tubercles slightly elongate, flat; interantennal space little wider than length of first antennomere; interocular space wider than transverse ocular width; antennae as long as half body length (LAN =
2.41 mm
; LAN/LB = 0.50); LA: 100:46:69:69:85:69:69:69:69:69:85. Pronotum subrectangular, distinctly transverse (LP =
1.19 mm
; WP/LP = 1.71), with clearly sinuate lateral margin; anterior margin slightly thicker than basal margin, and slightly sinuate laterally; anterior angles distinctly prominent laterally; pronotal surface with lines and groups of differently sized punctures (
Fig. 26
); pronotal base with two moderately impressed lateral longitudinal striae. Scutellum brown, subtriangular. Elytra moderately elongate (LE =
3.63 mm
; WE/LE = 0.73; LE/LP = 3.05), subparallel laterally, jointly rounded and entirely covering pygidium posteriorly; punctation clearly impressed, arranged in 9 (+ 1 scutellar) regular rows; interstriae flat, apart from most lateral weakly carinate posteriorly. First pro- and mesotarsomeres distinctly dilated; tarsal claws bifid. Ventral parts brown; last abdominal ventrite without distinctive preapical impressions. Aedeagus (LAED =
2.31 mm
; LE/LAED = 1.57) (
Fig. 38
) in ventral view slightly sinuate laterally, with subtriangular apical part and small median tooth; ventral sulcus wide, open towards basal part; in lateral view, median lobe distinctly narrowed subapically, with clearly bent dorsally apical third; dorsal ligula short, connected to apical fourth.
Etymology
. The specific epithet is a Latin female adjective referring to its small size.
Distribution
.
Somalia
(
Fig. 68
). Possibly Northern-Eastern Afrotropical (NEA) chorotype.
Ecological Notes
. Not available. The collection site falls within the area of Eastern African Xeric Scrub vegetation (belonging to the Warm Desert & Semi-Desert Scrub & Grassland formation).