Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae)
Author
Dellacasa, Marco
Author
Dellacasa, Giovanni
Author
Gordon, Robert D.
text
Insecta Mundi
2011
2011-12-16
2011
204
1
52
journal article
10.5281/zenodo.10090539
1942-1354
10090539
Blackburneuslaxepunctatus
(Schmidt, 1910)
(
Fig. 111-115
)
Aphodius laxepunctatus
Schmidt, 1910: 356
; Blackwelder 1944: 212.
Aphodius
(
Blackburneus
)
laxepunctatus
; Schmidt 1913: 137; Dellacasa 1988: 137.
Blackburneus laxepunctatus
; Skelley et al. 2007: 2.
Typelocality
.
Sao [=São] Paulo,
Brasilien
[
Brazil
].
Type
repository.
Naturhistoriska Riksmuseet,
Stockholm
(
type
examined).
Redescription.
Length 3.0-
4.5 mm
; moderatelyelongate, convex, shiny, glabrous. Reddish-brown; elytral suture darkened, legs dark reddish; antennal club pale testaceous. Head with epistome convex on disc, superficially alutaceous, doubly irregularly punctured; smaller very fine punctures scattered throughout, mixed with few much larger onesmainly towardfrontal suture; clypeus slightlysinuate at middle, round at sides, finely bordered, edge glabrous and moderately upturned: genae small, round, not ciliate, not protruding from the eyes; frontal suture finely impressed, sunk at middle, somewhat raised laterally; genal sutures distinctly raised; front dually and moreregularly punctured than epistome; eyesunusually large, their diameter equal to one third of the distance between them. Pronotum moderately transverse, convex, dually punctured; small very fine punctures more or less regularly sparse throughout; larger coarser punctures, seven toeight times larger than small ones, irregularly sparse, denser on sides; latter slightly curved, finely bordered; hind angles obtusely round; base feebly bisinuate, not bordered but marked by a row of more or less contiguous large punctures. Scutellum narrow, elongate, flat, finely punctured on basal half. Elytra elongate, somewhat broadened posteriorly; striae distinct, finely superficially punctured, not crenulate; interstriae flat, almost imperceptibly sparsely punctured. Hind tibiae superior apical spur shorter than first tarsal segment; latter as long as following three combined. Male: head and pronotum somewhat more sparsely and less coarsely punctured; pronotum not narrowed frontward; fore tibiae apical spur stouter, outward and downward bent; aedeagus
Fig. 114-115
. Female: headand pronotumsomewhat more densely andmore coarsely punctured; pronotumnarrowed frontward; fore tibiae apical spur slender and almost straight.
Type material.
1 female
(
lectotype
, herein designated,
NHRS
) bearing the following labels: 1) white (handwritten):
Sao Paulo
/
Brasilien
; 2) white (handwritten): laxepunct. / m.;
3) red (printed):
Typus
; 4) white (printed): 121;
5) red (printed):
Aphodius laxepunctatus
/
Schmidt A.
, 1910 /
Lectotypus
/
Dellacasa M.
& G. des., 2002.
Other
2 females
(
paralectotypes
,
NHRS
) with the same collecting data as lectotype
.
Material examined.
ARGENTINA
:
Prov.
Tucuman
,
C. Bruch
leg. (
1 ex.
,
NHRS
)
;
BOLIVIA
:
Santa Cruz
,
Potrerillos del Guendá
,
40 km
NW
Santa Cruz de la Sierra
,
17
o
40’26”S-
63
o
27’44”W
,
5-20.XI.2004
, leg.
B.K. Dozier
(blacklight) (2 exx.,
FSCA
)
;
BRAZIL
:
Amapa
,
Macapa
,
25.II-25.III.1993
, leg.
N. Dégallier
(piège d’interception) (
1 ex.
,
BCSC
)
;
Amazonas
,
Reserva Ducke
, 26
Km NE Manaus
,
4.IV.1978
, leg. B. C
.
Ratcliffe
(
1 ex.
,
ISEA
)
;
Amazonas
,
Tefé
,
VII.1984
, leg.
L. E. Peña
(3 exx.,
DCGI
)
;
Amazonas
, Fazenda Esteio,
Rd ZF
3
Km
23
;
20.VII.1985
, leg.
B. Klein
(bait: human dung, hab.:
Mature Forest Reserve
) (
1 ex.
,
DCGI
; 2 exx.,
FSCA
)
;
idem
,
7.VI.1986
(2 exx.,
FSCA
)
;
idem
,
19.VII.1985
(
1 ex.
,
FSCA
)
;
Amazonas
, 70
Km
Nof
Manaus
,
Fazenda Porto Alegre
,
14.VI.1986
, leg.
B. Klein
(bait: human dung, hab.:
Mature Forest Reserve
) (
1 ex.
,
DCGI
; 3 exx.,
FSCA
)
;
Amazonas
, 70
Km
Nof
Manaus
,
Fazenda Dimona
,
20.VI.1986
;
leg.
B. Klein
(bait: human dung, hab.:
Mature Forest Reserve
) (6 exx.,
FSCA
)
;
idem
,
19.VI.1986
(
1 ex.
,
FSCA
)
;
Amazonas
, 70
Km
Nof
Manaus
,
Fazenda Esteio
,
2.VI.1986
, leg.
B. Klein
(bait: beef, hab.:
Mature Forest Reserve
) (
1 ex.
,
FSCA
)
;
Goiás
,
Santo Antonio do Descoberto
,
16.XI.1997
, leg.
N. Dégallier
(
1 ex.
,
DCGI
)
;
Minas Gerais
,
Cordisburgo, F
.
Pontinha
,
VII.1994
, leg.
de Mello
(
1 ex.
,
ISEA
)
;
Pará
,
Barcarena
,
12- 26.VI.1991
, leg.
N. Dégallier
(piège d’interception) (
1 ex.
,
BCSC
)
;
idem
,
19-30.IX.1990
, leg.
N. Dégallier
(piège d’interception) (14 exx.,
BCSC
; 7 exx.,
DCGI
)
;
Pará
,
Tacurui
,
28.XI-11.XII.1989
, leg.
N. Dégallier
(
1 ex.
,
BCSC
)
;
Rondonia
, 62
Km SW Ariquemes
,
Fzda. Rancho Grande
,
10.XI.1994
, leg.
C. O’Brien
(
blacklight trap
) (2 exx.,
DCGI
)
;
idem
,
12.XI.1995
, leg.
C. O’Brien
(
black light trap
) (4 exx.,
FSCA
)
;
idem
,
3- 15.XII.1996
(4 exx.,
DCGI
; 24 exx.,
FSCA
)
idem
,
8-20.XI.1994
, leg.
J. Eger
(
blacklight trap
) (
1 ex.
,
FSCA
)
;
idem
,
8-20.XI.1994
, leg.
J. Eger
&
C. O’Brien
(blacklight) (5 exx.,
FSCA
;
1 ex.
,
ISEA
)
;
Rondonia
, 9
Km NE Cacaulandia
,
17.I.1997
, leg.
K. Vulinec
&
D. Mellow
(
human dung pitfall trap
) (
1 ex.
,
FSCA
)
;
Sao Paulo
,
Sidrolandia
, route
Campo-Grande
,
Pk
68,
23.V-10.VI.1992
, leg.
N. Dégallier
(piège d’interception) (
1 ex.
,
DCGI
)
;
Serra do Navio
,
Amapa
,
1-14.V.1991
, leg.
N. Dégallier
(piège d’interception) (9 exx.,
BCSC
; 4 exx.,
DCGI
)
;
Sto. Paulo d’Olivença
,
M. de Mathan
, VI-VII.1883 (
1 ex.
,
DCGI
)
;
State of Sao Paulo
,
Piracicaba
,
29.XII.1965
, leg.
C. A. Triplehorn
(
blacklight trap
) (
1ex.
,
FSCA
)
;
COSTA RICA
:
Heredia
,
Est. Biol. La Selva
,
10
o
26’N-
84
o
01’W
,
22.VI.1998
, leg.
C. Carlton
&
A. Tishechkin
(F.I.T.) (
1 ex.
,
DCGI
)
;
FRENCH GUIANA
:
Cabassou
,
III.1979
, leg.
N. Dégallier
(5 exx.,
DCGI
)
;
Entomotech Lodge
, 30
Km
SE
Roura on Kaw Rd.
,
04
o
33.570’N-
52
o
12.438’W
, m 300,
1-12.XII.2002
, leg.
J. E. Eger
(
BL Trap
) (
1 ex.
,
FSCA
)
;
Hwy N
2 to
Regina
, 67
Km
Sof Cayenne
,
1.VI.1986
, leg.
E. G. Riley
&
D. A. Rider
(
1 ex.
,
FSCA
)
;
Ile de Cayenne
,
II.1979
, leg.
N. Dégallier
(
1 ex.
,
DCGI
)
;
Roura
,
Cacao
,
26-27.V.2005
, leg.
A. J. Hielkema
, in
pitfall
with human excrement in forest (
1 ex.
,
HCGN
)
;
Roura
8.4
Km
SSE,
04
o
40’41”N-
52
o
13’25”W
, m 200,
29.V-10.VI.1997
, leg.
J. Ashe
&
R. Brooks
(flight int. trap) (2 exx.,
CNCI
;
1 ex.
,
DCGI
)
;
Saül
,
VII.1973
, leg.
N. Dégallier
(
1 ex.
,
DCGI
)
;
PARAGUAY
:
Paraguay
(
1 ex.
,
NHRS
)
;
Paraguay
, 188[?], leg.
Dr. Drake
(
1 ex.
,
NHRS
)
;
Alto Paraná
,
16.XI.1990
, leg.
L. E. Peña
(
1 ex.
,
DCGI
)
;
Dpt.
Guaira
,
Calle Florida
,
VIII.1993
(
1 ex.
,
DCGI
)
;
PERU
:
Loreto
, 80
Km
NE
Iquitos
,
Explorama Lodge
,
Rio Yanamono
, 1
Km
from
Amazon R.
,
1-5.IX.1992
, leg.
P. E. Skelley
(human dung) (
1 ex.
,
DCGI
)
;
SURINAME
:
Commewijne
,
Akintoscela
,
Celos
,
05
o
16’17”N-
54
o
55’15”W
, m 50,
2.VII.1999
, leg.
Z. Falin
(
ex dung trap
) (2 exx.,
DCGI
; 2 exx.,
ISEA
)
;
Sipaliwini
,
Raleighvaller N. P.
, E-Bank
Coppename
,
11-13.V.1998
, leg.
A. J. Hielkema
(
1 ex.
,
HCGN
)
;
VENEZUELA
:
Bolivar
,
Rio Chicanan
, 40
Km SW El Dorado
,
22-23.VII.1986
, leg.
B. Gill
(
1 ex.
,
DCGI
; 2 exx.,
ISEA
)
.
Distribution.
Argentina
,
Bolivia
,
Brazil
,
Costa Rica
,
French Guiana
,
Paraguay
,
Peru
,
Suriname
,
Venezuela
.
Bionomics.
Adults seem to be active all year round. Most of the specimens examined were collected at light, with interception traps, or with pitfall traps baited with human dung.