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 coerulea
(Allard, 1889)
Ootheca coerulea
Allard, 1889: 102
.
Bonesioides coerulea
(Allard, 1889)
; in Laboissière, 1925: 59.
Monolepta
(
Candezea
)
gigantea
(Jacoby, 1897)
; in Weise, 1924: 176.
Monolepta gigantea
(Jacoby, 1897)
; in Wilcox, 1973: 535.
Luperus giganteus
Jacoby, 1897
; in Wilcox, 1975: 683.
Redescription
Total length
. 8.0–
9.3 mm
(mean:
8.41 mm
).
Head.
Labrum, labial and maxillary palpus black, frons and vertex dark metallic blue. Antenna black and long, extending towards end of metasternum (figure 7). Antennal article 3 roughly 50% longer than antennal article 2 (figure 8), A2/A3: 0.53–0.69 (mean: 0.63). Antennal article 4 longer than antennal articles 2 and 3 combined, A3/A4: 0.48–0.61 (mean: 0.54). Eyes very large (figure 7), WE/DE: 0.82–1.06 (mean: 0.91).
Thorax.
Pronotum and elytra dark metallic blue. PL:
1.3–1.5 mm
(mean:
1.42 mm
), PW:
2.4–2.6 mm
(mean:
2.49 mm
), PL/PW: 0.54–0.60 (mean: 0.57). EL:
6.3–7.5 mm
(mean:
6.69 mm
), EW:
3.9–4.1 mm
(mean:
4.04 mm
), EW/EL: 0.57–0.63 (mean: 0.60). Mesothorax, metathorax and legs black, metatibia more than twice as long as metatarsus (figure 7), TA/TI: 0.45–0.47 (mean: 0.46).
Abdomen
. Black.
Male genitalia.
Median lobe slender and elongated, homogeneously narrowed apically (figure 10). Orifice slender, nearly rectangular. Tectum slender, long. Endophallus with slender base and two small, strongly curved spiculae, covered by tectum. Endophallic brush and well-protuding, strongly sclerotized apical part of ductus ejaculatorius partly covered by tectum.
Female genitalia.
Spermatheca with expanded nodulus, middle part and cornu varying in length and curvature (figure 9).
Distribution
. Recorded from
Nigeria
,
Cameroon
and Equatorial-Guinea (figure 11).
Diagnosis
.
Bonesioides coerulea
is most similar to
B. caerulea
and
B. godzilla
sp. nov.
(figures 7, 26, 58). It can be easily distinguished by its large eyes, which are much smaller in the other two species mentioned. WE/DE is
0.82–1.06 in
B. coerulea
,
0.44–0.51 in
B. godzilla
sp. nov.
and
0.47–0.60 in
B. caerulea
. Specimens of
B. coerulea
are larger than specimens of
B. caerulea
and smaller than specimens of
B. godzilla
sp. nov.
Total length of
B. caerulea
ranges between 6.8 and
7.9 mm
, of
B. coerulea
: 8.0–
9.3 mm
, and of
B. godzilla
sp. nov.
:
8.9–9.5 mm
. The elytra of
B. godzilla
sp. nov.
are nearly parallel-sided from the humeri apically, while they are expanded apically in
B. coerulea
. The basi-metatarsus is significantly longer than the metatibia in
B. coerulea
(TA/TI: 0.45–0.47), compared to
B. caerulea
(0.39–0.45). The median lobe of
B. caerulea
, the most similar species, has a much broader circular orifice than
B. coerulea
(figures 10, 29), where the orifice is narrower and more rectangular. In addition, the entire endophallus and the endophallic base are broader and the spiculae are larger in
B. caerulea
. Furthermore, the spiculae are left-curved in
B. caerulea
, while in
B. coerulea
one spiculum is left-curved, and the other is right-curved.
F 7–10. Morphology of
Bonesioides coerulea
(Allard, 1889)
. (7) Habitus; (8) basal antennal articles: (A) female, (B, C) males; (9) two different spermathecae; (10) median lobe: (A) lateral, (B) dorsal, (C) ventral, without endophallic structures.
F. 11. Distribution map of
B. coerulea
(Allard, 1889)
,
B. caerulea
(Jacoby, 1903)
and
B. godzilla
sp. nov.
Type
material
L
:
W
‘
Ootheca coerulea
All. Vieux Calabar
/
Vieux Calabar
/ ex
Museao, E
.
Allard
, 1899 /
Museum Paris
, collection
Allard’
(
MNHN
);
Nigeria
: 4°56∞N/8°22∞E;
lectotype
designated by
Wilcox
; examined. P
:
W
same
data label as
holotype
(
MNHN
); this designation. H
:
X
‘
Luperus giganteus
, Type, Jac. /
Cameroon
/
Jacoby
coll. 1909-28a’ (
BMNH
); examined
.
Other material examined
Cameroon
:
5 ex.
,
Lolodorf
, 3°17∞N/10°50∞E,
December 1894
–
June 1895
,
L. Conradt
(
BMNH
)
;
6 ex.
, coll.
Kraatz
,
Conradt
(
DEI
)
.
Equatorial-Guinea
:
2 ex.
,
Mongo
, 1°30∞N/10°10∞E, 1946/1948,
J. Palau
(
MRAC
)
.
Nigeria
:
1 ex.
, Mundame-
Mungo
, 4°35∞N/9°31∞E,
Comparé
au
type
par
J. Schulz
,
Rhode
(
MRAC
)
.