Rearrangements in some species groups of Amblycerus Thunberg, 1815 (Coleoptera: Chrysomelidae: Bruchinae) including keys, description of a new species, new host plant and distributional records
Author
Santos, Aluska Tavares Dos
Author
Ribeiro-Costa, Cibele Stramare
text
Zootaxa
2019
2019-11-27
4701
2
101
148
journal article
24790
10.11646/zootaxa.4701.2.1
bc19d052-353e-4e68-ab95-41e4eaaeac02
1175-5326
3557871
7BD270C5-50AA-4CC0-8101-DB46948A0C81
Amblycerus alternatus
(
Pic, 1954
)
(
Figs 5, 6
,
15
,
28
,
41
,
54
, 71, 84, 103, 107, 120)
Spermophagus alternatus
Pic, 1954: 13–16
(desc.).
Amblycerus alternatus
:
Kingsolver, 1980: 241
(cit.);
Romero
et al
. 1996
(desc.,
type
, distr., key);
Romero
et al
. 2002
(phyl.).
Type material examined
.
Holotype
deposited in
MNHN
,
1 male
, with labels: Alternatus\ nsp [handwritten symbol]; type [handwritten];
HOLOTYPE
♀
[handwritten symbol]\
Spermophagus
\ alternatus\ Pic [label with red bor- der];
Amblycerus
\ alternatus\ (Pic)\ det. 76\ J. M. Kingsolver;
MUSÉUM PARIS
\ 1958\ coll. M. PIC;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017.
Paratype
deposited in
MNHN
,
1 female
, with labels:
Colombie
[handwritten];
PARATYPE
[red label written in black]; alternatus\ Pic\ det.\ J. M. Kingsolver;
MUSÉUM PARIS
\ 1958\ coll. M. PIC;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017.
Paratype
deposited in
MNHN
,
1 female
, with labels:
Colombie
[handwritten];
PARATYPE
[red label written in black]; alternatus\ Pic\ det.\ J. M. Kingsolver;
MUSÉUM PARIS
\ 1958\ coll. M. PIC;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017.
Paratype
deposited in
MNHN
,
1 female
, with labels: Columb [handwritten]/ Spermophag/ cervinus.\Volg [illegible];
PARATYPE
[red label written in black]; alternatus\ Pic\ det.\J. M. Kingsolver;
MUSÉUM PARIS
\ 1958\ coll. M. PIC;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017.
Additional specimens examined
. [
1 male
specimen]: Ft. Clayton\ Panama C. Z.\
1 Mar.
‘70\ H. Stockwell\ alternatus;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017. (
DZUP
). [
1 female
specimen]:
GUATEMALA
:
Zacapa
\ rd. to San Lorenzo\
1000 m
., mv + bl, 15\
Oct. 2006
, R. Turnbow;
Amblycerus
\
alternatus (Pic)
\ det.\J. M. Kingsolver;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017. (
FSCA
). [
1 male
specimen]:
PANAMA
: Bayano\ 10.6 km. E Canita\
29 June 1997
\ R. Turnbow
♀
[handwrit- ten symbol];
Amblycerus
\
alternatus (Pic)
\ det.\J. M. Kingsolver;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017. (
FSCA
). [
1 male
specimen]: Brasil Pará\ São João de Pirabas\ Japerica\
20 a 22-XII-1992
; Armadilha\ Malaise;
MPEG
01019977;
Amblycerus
sp.\ Viana, JH det. 2016;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017. (
MPEG
). [
1 female
specimen]: Brasil Pará\ São João de Pirabas\ Japerica\ Ilha Conceição\
22-XII-1992
;
Coleoptera: Polyphaga
\ Chrysomeliformia:\ Curculionoidea:\
Bruchidae
:\ Incorp:
24.v.2002
;
MPEG
01019977;
Amblycerus
sp.\ Viana, J. H. det. 2016;
Amblycerus alternatus
\ (
Pic, 1954
)\ Det.: A. T. Santos;\ C. S. Ribeiro-Costa, 2017. (
MPEG
).
Measurements
. BL: 6.0 mm; BW: 3.5 mm.
Diagnosis (
Figs 28
,
103
)
.
Amblycerus alternatus
is characterized by the following characters combination: eyes distant from each other anteriorly, ocular index: 4.6; elytra with dense stripes of setae more conspicuous on interestriae 3, 5, 7 and 9; internal sac of male genitalia in the apical region with a pair of hollow, subtriangular, tuberculate sclerite (
Fig. 103
).
Amblycerus alternatus
differs from
A. spondiae
by the indistinct frontoclypeal suture (distinct in
A. spondiae
), cervical boss with two setae (three setae in
A. spondiae
), metaventrite with median sulcus about half as long as metaventrite (longer than a half the lenght of metaventrite in
A. spondiae
) male genitalia at apical region with a pair of hollow, subtriangular, tuberculate sclerites (with a pair of hollow, subtriangular not tuberculate sclerites in
A. spondiae
).
Amblycerus alternatus
differs from
A. vitis
in the apical region of male genitalia, where a pair of subtriangular sclerite is tuberculate in the former species and smooth in the latter, and in the median region, whose unpaired wishbone sclerite is short in
A. alternatus
whereas it is longer in
A. vitis
.
Amblycerus alternatus
differs from
A. cuernavacensis
by the indistinct frontoclypeal suture (distinct in
A. cuernavacensis
), lateral carina almost reaching the posterior margin of pronotum (reaching the posterior margin in
A. cuernavacensis
) and scutellum tridentate with median tooth longer than the lateral ones (all teeth with same length in
A. cuernavacensis
).
Distribution (
Fig. 120
)
.
Mexico
,
Guatemala
(
new country record
),
Honduras
,
Panama
,
Colombia
and
Brazil
.
Life History
. No information was found on this species in the literature.
Host Plants
. Unknown.