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 montana
sp. nov.
Description
Total length
.
4.4–5.6 mm
(mean:
5.24 mm
).
Head
. Labrum, labial and maxillary palpus black, frons and vertex dark metallic green or blue. Antenna black and long, extending towards distal third of elytra (figure 75). Antennal articles 2 and 3 short (figure 76), ratio article 2 to 3: 0.58–0.78 (mean: 0.68), antennal article 4 longer than articles 2 and 3 combined, A3/A4: 0.52–0.60 (mean: 0.54). Eyes large (figure 75), WE/DE: 0.60–0.75 (mean: 0.68).
Thorax.
Pronotum and elytra dark metallic blue or green. PL:
0.8–0.9 mm
(mean:
0.86 mm
), PW:
1.4–1.7 mm
(mean:
1.60 mm
), PL/PW: 0.47–0.59 (mean: 0.54). EL:
3.2–4.6 mm
(mean:
4.19 mm
), EW:
2.2–2.6 mm
(mean:
2.41 mm
), EW/EL: 0.51–0.75 (mean: 0.58). Mesothorax, metathorax and legs black, metatibia on average twice as long as metatarsus (figure 75), TA/TI: 0.45–0.52 (mean: 0.49).
F 75–78. Morphology of
Bonesioides montana
sp. nov.
(75) Habitus; (76) basal antennal articles: (A, B) females, (C, D) males; (77) two different spermathecae; (78) median lobe: (A) lateral, (B) dorsal, (C) ventral, without endophallic structures.
Abdomen
. Black.
Male genitalia
. Median lobe very slender, parallel-sided from orifice towards tectum, apical third also nearly parallel-sided, but much more slender (figure 78). Orifice broad and nearly rectangular at base, tectum long and slender. Endophallus with two long, left-curved spiculae, which are large at base. Endophallic brush and apical part of sclerotized ductus ejaculatorius covered by tectum, only gonoporus slightly protruding.
Female genitalia
. Spermatheca with slightly expanded nodulus, middle part short and nearly straight, cornu strongly hooked at apex (figure 77).
Distribution
. Recorded from montane regions of
Ethiopia
,
Kenya
and
Tanzania
(figure 48).
Diagnosis
.
Bonesioides montana
sp. nov.
is most similar to
B. laevicollis
and
B. marcoi
sp. nov.
(figures 39, 71).
B. montana
sp. nov.
has smaller eyes than those species (mean WE/DE: 0.68, but
0.72 in
B. laevicollis
and
0.78 in
B. marcoi
sp. nov.
). Elytra in
B. montana
sp. nov.
are nearly parallel-sided from humeri towards the apex (figure 75), while they are expanded apically in
B. laevicollis
and
B. marcoi
sp. nov.
(figures 39, 71). Furthermore, these species can be distinguished by shape of the male genitalia. The median lobe of
B. montana
sp. nov.
is very slender and parallel-sided from orifice towards the tectum, the apical third is strongly narrowed and also nearly parallel-sided (figure 78), while in
B. laevicollis
and
B. marcoi
sp. nov.
the median lobe is homogeneously narrowed from orifice towards the apex and is much broader (figures 42, 74).
B. laevicollis
and
B. marcoi
sp. nov.
mainly occur in the
Congo
Basin (figure 43), while
B. montana
sp. nov.
is restricted to the montane regions of East Africa (figure 48).
Type
material
H:
W
‘
Holotypus
Bonesioides montana
/
Bonesioides montana
Freund & Wagner 2000
/
Monolepta ruwensorica Bry., G. E. Bryant
det. 1958 / Coll. Mus. Congo, Kenya: Timboroa,
2800 m
, prairies découvertes,
10.-IV.-1957
/ Mission Zoolog. I. R. S. A. C. en Afrique orientale, P. Basilewsky et N. Leleup’ (MRAC); Kenya: 0°4∞N/35°33∞E. P:
Ethiopia
:
3 ex.
, Illubabor, 7°27∞N/35°10∞E,
1600 m
,
June 1973
, G. de Rougemont (MRAC);
2 ex.
, Shoa Prov., Wolisso, 8°28∞N/37°55∞E,
June 1971
, G. de Rougemont (MRAC);
1 ex.
Arussi Galla, 7°0∞N/38°40∞E,
May 1993
, V. Bottego (ZMUH).
Kenya
:
1 ex.
, Mt Kenia,
ca
0°20∞S/37°15∞E,
December 1949
, Patrizi (IRSNB);
1 ex.
, Mt Kenya,
ca
0°20∞S/37°30∞E,
August–October 1927
, A. Insoll. (BMNH);
1 ex.
, Molo, 0°15∞S/35°45∞E,
December 1911
, Alluaud and Jeannel (MNHN);
2 ex.
, S. A. L. Kenya, Janaury 1959, J. E. Graham (BMNH).
Tanzania
:
3 ex.
, Mts Uluguru, morning side, Toelo, 7°0∞S/37°40∞E,
1450 m
,
June 1971
; Mission Mts Uluguru, Berger, Leleup, Debecker (MRAC).