Revision of Bonesioides Laboissière, 1925 (Coleoptera; Chrysomelidae; Galerucinae) from continental Africa
Author
Freund, W.
Author
Wagner, TH.
text
Journal of Natural History
2003
2003-08-31
37
16
1915
1976
http://www.tandfonline.com/doi/abs/10.1080/00222930110096519
journal article
10.1080/00222930110096519
1464-5262
5260403
Bonesioides trispiculata
sp. nov.
Description
Total length.
4.2–4.6 mm
(mean:
4.34 mm
).
Head
. Labrum, labial and maxillary palpus dark brown, frons and vertex dark metallic blue. Antenna dark brown, first three articles paler. Antennal article 3 about 50% longer than article 2 (figure 91), A2/A3: 0.60–0.67 (mean: 0.63); article 4 about same length of articles 2 and 3 combined, A3/A4: 0.60–0.67 (mean 0.63). Eyes large (figure 90), WE/DE: 0.67–0.70 (mean: 0.68).
Thorax.
Pronotum and elytra dark metallic blue. PL:
0.7–0.8 mm
(mean:
0.75 mm
), PW:
1.2–1.5 mm
(mean:
1.35 mm
), PL/PW: 0.54–0.57 (mean: 0.56). EL:
3.2–3.6 mm
(mean:
3.34 mm
), EW:
1.9–2.2 mm
(mean:
2.03 mm
), EW/EL: 0.58–0.63 (mean: 0.61). Mesothorax, metathorax and legs dark metallic blue, metatibia about twice as long as metatarsus (figure 90), TA/TI: 0.48–0.49 (mean: 0.49).
Abdomen
. Dark metallic blue.
Male genitalia
. Median lobe slightly expanded medially, strongly narrowed from tectum towards apex (figure 92). Base of orifice rectangular, tectum broad and short. Endophallus with broad base and three spiculae, one protruding out of endophallus. Endophallic brush absent, protruding apical part of sclerotized ductus ejaculatorius very long, extending from tectum towards apex of median lobe.
Female genitalia
. Female unknown.
Distribution
. Recorded from two locations in Central
Congo
(figure 38).
Diagnosis
.
Bonesioides trispiculata
sp. nov.
is very similar in coloration and size to
B. gambiae
sp. nov.
,
B. kirschi
and
B. laboissierei
nom. nov.
(figures 17, 34, 54, 92), but can be unmistakeably identified by the peculiar pattern of the median lobe and the endophallus, since
B
.
trispiculata
sp. nov.
is the only
Bonesioides
species
, which has three endophallic spiculae (figure 92). The antennal articles in
B. kirschi
and
B. laboissierei
nom. nov.
are shorter and broader than in
B
.
trispiculata
sp. nov.
(figures 17, 34, 54). The eyes in
B
.
trispiculata
sp. nov.
are larger than in
B. kirschi
(figures 17, 90; mean WE/DE in
B
.
trispiculata
sp. nov.
0.68,
B. kirschi
0.59). Furthermore,
B
.
trispiculata
sp. nov.
is restricted to Central
Congo
, while
B. gambiae
sp. nov.
is restricted to
Gambia
and the other two species mainly occur in eastern and southern Africa (figure 38).
F 90–92. Morphology of
Bonesioides trispiculata
sp. nov.
(90) Habitus; (91) basal antennal articles: (A, B) males; (92) median lobe: (A) lateral, (B) dorsal, (C) ventral, without endophallic structures.
Type
material
H:
W
‘
Holotypus
Bonesioides trispiculata
/
Bonesioides trispiculata
Freund & Wagner 2000
/ Musée du
Congo
, Bumbuli, I-IV-1915, R. Mayné’ (MRAC);
Congo
: 3°24∞S/20°31∞E. P:
Congo
:
2 ex.
, Yangambi, 0°47∞N/24°28∞E,
November 1951
, J. Decelle (MRAC);
1 ex.
, Yangambi (Stanleyville), 0°47∞N/24°28∞E,
December 1958
, P. Dessart (MRAC).