Revision of Brazilian species of Aleochara Gravenhorst of the subgenus Aleochara (Coleoptera: Staphylinidae: Aleocharinae)
Author
Caron, Edilson
Author
Moussallem, Marcelo
Author
Bortoluzzi, Sidnei
text
Zootaxa
2019
2019-12-18
4712
1
1
33
journal article
24560
10.11646/zootaxa.4712.1.1
7a2586bd-e52d-4759-819d-235e6f200c3b
1175-5326
3586751
1F632A35-CB78-4ABB-A701-7B7B5D62FA7B
Aleochara chrysorrhoa
Erichson, 1839
(
Figs. 6
,
55–64
,
75
)
Aleochara chrysorrhoa
Erichson, 1839: 160
(description, type locality: “Brasilia”).
Feynes 1918: 400
(catalogue).
Bernhauer & Scheerpeltz 1926: 776
(catalogue).
Blackwelder 1944: 167
(checklist).
Klimaszewski
et al.,
1987: 250
(redescription;
lectotype
designation).
Caron
et al.
, 2008: 832
(checklist).
Type material:
Type not studied. Note:
lectotype
deposited in
ZMHB
(
Klimaszewski
et al
. 1987
).
Additional material:
IRSNB
:
One specimen: (1) “Coll.
R
.
I. Sc.
N. B.”.
Brazil
:
One specimen: (1) “
Espirito Santo
\ Brésil”; (2) “Coll.
R
.
I. Sc.
N. B.”
.
DZUP
:
Brazil
:
Two
specimens: (1) “BRASIL,
Paraná
, Campina\
Grande do Sul
,\
25º17’47.39”S
,
49º2’12.38”\ W
,
FIT-
Área Poço
04/XII/2013
F. W.
T
.
Leivas
\ (leg.).
Two
specimens: (1) “
BRASIL
,
Paraná
, Campina\
Grande do Sul
,\
25º17’47.39”S
,
49º2’12.38”\ W
,
FIT-
c/orgânico\
14/I/2014
F. W.
T
.
Leivas
\ (leg.).
Three
specimens: (1) “
BRASIL
,
Paraná
, Campina\
Grande do Sul
,\
25º17’47.39”S
,
49º2’12.38”\ W
,
FIT
c/orgânico-\
08/
V
/2014
F. W.
T
.
Leivas
\ (leg.).
Six
specimens: (1) “
BRASIL
,
PR
, Foz do Iguaçu\ Parque Nacional do Iguaçu\ (
Pitfall
)\
29-XII-2010
\ M.
R
.
Silva
, col.”
.
MHNCI
:
Brazil
:
One
specimen: (1) “S. J. dos PINHAIS
PR
\ (GUARICANA)\
26. IV. 1985
\ S. MALKOWSKI leg”; (2) “SC”; (3) “
CAPÃO
\ IMBUIA\
PR
”
.
FIGURES 55–60.
Morphologic structures of
A. chrysorrhoa
, male (55) Tergum VIII, dorsal view; (56) Sternum VIII, ventral view; (57) Terga IX–X, dorsal view; (58) Paramere; (59) Aedeagus, dorsal view; (60) Aedeagus, lateral view.
FIGURES 61–64.
Morphologic structures of
A. chrysorrhoa
, female (61) Tergum VIII, dorsal view; (62) Sternum VIII, ventral view; (63) Terga IX–X, dorsal, view; (64) Spermatheca.
Diagnosis:
Aleochara chrysorrhoa
is similar to
A. bonariensis
and differs from it by tergum VIII of male distinctly serrate on posterior margin, around of 13 teeth; apex median lobe of aedeagus with a short tooth (directed ventrad); and female with elongate capsule of spermatheca.
Redescription:
BL: 8.0 mm. EW:
2.2 mm
. Body dark brown, with tarsi, maxillary palpi, basal antennal segments and apical part of abdomen rust-brown. Dorsal surface glossy and covered with thin golden yellowish setae and setigerous pores impressed.
Head:
with coarse setigerous punctutation; disc with sparse pubescence directed mediad and anterad. Antennae with antennomere 2 half length of first and slightly narrower than first; 3 longer than 2; 4 subquadrate to slightly transverse; 5–10 similar in shape, distinctly transverse, 10 slightly narrower than 9; 11 twice longer than the previous one, semi-triangular in shape; 1–4 glossy with some long black setae; 5–11 dull and covered by very short white setae, with some long black setae on apex of each antennomere and in 11 with long black setae on a transversal circular line in the middle of the antennomere.
Thorax:
pronotum with setigerous punctuation; setae directed posterad at the midline of the disc, directed laterad in each anterior half, and posterad and laterad in each posterior half. Mesoventral process truncate apically. Elytra with setigerous punctuation, denser than pronotum; setae directed posterad.
Abdomen:
distinctly narrowed posteriorly, with maximum width of tergum X about one-third of apical width of tergum VII; terga with coarsely setigerous punctation, similar to head, sparse pubescence directed posterad.
Male:
tergum VIII as wide as long; posterior margin emarginate at the middle, coarsely serrate, with about 13 teeth (
Fig. 55
). Sternum VIII as wide as long; posterior margin truncate (
Fig. 56
). Tergum IX with asymmetrical ventral struts, the left shorter than the right one, the left with one accessory short arm directed laterad. Tergum X with anterior and posterior margin truncate, but withweakly sclerotized area at the middle (
Fig. 57
); aedeagus: median lobe elongate with bulbous base (
Fig. 59
); apex with a short tooth, somewhat hook-like, directed ventrad (
Fig. 60
).
Female:
tergum VIII as wide as long; posterior margin slightly emarginate at the middle (
Fig. 61
). Sternum VIII as wide as long; posterior margin broadly rounded, somewhat truncate at the middle, with short setae restricted to posterior margin (
Fig. 62
). Tergum IX with very short and symmetrical ventral struts. Tergum X with anterior margin somewhat curved and posterior margin very slightly emarginated at the middle (
Fig. 63
). Spermatheca long, somewhat in L-shaped, and without apical invagination (
Fig. 64
).
Taxonomic note:
in the original description of
A. chrysorrhoa
,
Erichson (1839)
was not clear if he examined a male, or a female, or both, because he only described the color of abdominal apex, and not the shape of the tergum VIII (important for sex identification).
Klimaszewski
et al.
(1987)
redescribed the species based on one female, the
type
material of species deposited in the Museum für Naturkunde der Humboldt-Universität (ZMHB,
Berlin
,
Germany
), where the Erichson's collection is housed. Therefore, here we described for the first time the characteristics of male, including the sexual dimorphism.
Geographical records:
Examined material:
Brazil
(
Espírito Santo
;
Paraná
: Campina Grande do Sul, Foz do Iguaçu and São José dos Pinhais) (
Fig. 75
). Literature:
Brazil
(
Erichson 1839
).
Natural history:
Some specimens were collected using FIT and pitfalls.