Molecular phylogenetics, systematics and host-plant associations of the Bruchidius albosparsus (Fåhraeus) species group (Coleoptera, Chrysomelidae, Bruchinae) with the description of four new species
Author
Delobel, Alex
Author
Ru, Bruno Le
Author
Genson, Gwenaëlle
Author
Musyoka, Boaz K.
Author
Kergoat, Gael J.
text
Zootaxa
2015
3931
4
451
482
journal article
10.11646/zootaxa.3931.4.1
f48f81bc-5e1b-43f7-85b9-352040d4d64d
1175-5326
244566
DCDE8326-74F5-4C80-B802-8A05C0B4C4A7
Bruchidius meridionalis
Anton & Delobel, 2003
Bruchidius meridionalis
Anton & Delobel, 2003
:174
Material examined.
Kenya
:
13 ♂
, 18 ♀, Mogotio,
00°05’29’’S
35°56’06’’E
,
1686m
,
18.vi.2007
, ex
Vachellia gerrardii
[
1♂
17397, specimen GK 112 used for
DNA
extraction] (B. Le Ru) [
CBGP
]; other material as listed in
Anton & Delobel (2003)
, including specimens from
Angola
,
Burundi
,
Central African Republic
,
Republic of South Africa
,
Rwanda
and
Zambia
.
A small (
1.8–2.7 mm
), yellowish to reddish-brown species with darker and paler spots in elytral interstriae; elytra with double-toothed protuberance at base of interstriae 3–4; in male, a large pear-shaped area with short erect setae in basal angle of first ventrite; in female, last visible tergite with a pair of flat, unmargined, micropunctate foveae.
Genitalia [see
Figs. 19–23
, p.
176 in
Anton & Delobel 2003
]: Median lobe moderately elongated (maximum width excluding basal hood/ total length = 0.14), basal hood little widened; ventral valve large, subtriangular, with two lateral groups of 3–5 setae each; no hinge sclerite; internal sac densely lined with thin spines of various sizes; its median area with two rows of 10–17 denticles having point as long as base; gonopore wide, sclerotized; tegminal strut narrow, with obsolete keel; lateral lobes cleft to about 4/5 their length; apex not modified, bearing 8–11 setae; in female, vagina long and membranous, a dorsal ovoid dentate sclerite at entrance of bursa copulatrix.
Biology.
Reared from seeds of
Vachellia gerrardii
,
V. sieberiana
and other unidentified
Vachellia
species.
Discussion.
Bruchidius meridionalis
can be distinguished from the morphologically closely related
B. centromaculatus
by having a wider eye separation, protuberances always present at base of elytra, smaller teeth at base of elytral striae 2–4, shorter median lobe, lower number of denticles in internal sac, basal denticles as large as remaining ones, and smaller ratio of base to point of denticles.
Distribution.
Angola
,
Burundi
,
Central African Republic
,
Democratic Republic of Congo
(
Anton & Delobel 2003
),
Kenya
,
Republic of South Africa
,
Rwanda
, and
Zambia
.