The genus Peckia Robineau-Desvoidy (Diptera: Sarcophagidae) in the Brazilian Amazon: a new species, new records, descriptions of female terminalia and key to species
Author
Camargo, Sofia Lins Leal Xavier De
Author
Carvalho-Filho, Fernando Da Silva
Author
Esposito, Maria Cristina
text
Zootaxa
2018
2018-09-20
4483
1
1
35
journal article
29137
10.11646/zootaxa.4483.1.1
ea44347b-d895-4d9a-940f-7f2c8e3c62be
1175-5326
1438483
852D819B-E69C-411B-B086-B3660F38B487
Peckia
(
Peckia
)
gulo
(
Fabricius, 1805
)
(
Figs 75–80
)
Description of female terminalia.
Posterior margin of T5 triangular, reddish, with golden microtrichosity and a row of robust, spine-like setae near posterior margin (
Figs 78–80
). T6 divided into two halves, brown, covered with golden microtrichosity and with grooves on its surface (visible in dry specimens) and robust setae near posterior margin. Spiracles 6 and 7 located on T6. T8 absent (
Figs 75, 78
). Epiproct triangular, poorly sclerotized, reduced to a patch of setae on the membrane, near the cercus. Cercus covered with fine setae. Hypoproct triangular, covered with long and fine setae (
Fig. 76
). ST6 elongate, with a pair of robust setae near posterior margin. ST7 shieldshaped, without setae. ST8 wider than long, with lateral margin curved inward and a row of setae near posterior margin (
Fig. 75
). Spermathecae globular, with grooves and a small rounded chamber where they receive the spermathecal duct (
Fig. 77
).
Material
examined.
BRAZIL
.
Pará
:
Bragança
,
Ilha Canelas
,
0°47'06"S
46°43'41"W
,
27.IX–5.X.1995
,
suspended trap
, oceanic side of island, mangrove margin, leg.
N. Bittencourt
(
1 ♂
,
MPEG
)
; Bragança, Ajuruteua,
23–24.XI.1988
,
Malaise trap
, leg. F.F. Ramos (1 ♂, MPEG);
Bragança
,
7.III.1983
, leg.
F.F. Ramos
&
R.B. Neto
(
1 ♂
,
MPEG
)
;
Bragança
,
5.X.1995
, leg.
N. Bittencourt
(
7 ♀♀
,
MPEG
)
;
Bragança
,
11.V.2007
, leg.
R. Santos
(
1 ♀
,
MPEG
)
;
Bragança
,
11.IV.2008
, leg.
R. Santos
(
1 ♀
,
MPEG
)
;
same data but
7.III.1983
, leg.
F.F. Ramos
&
R.B. Neto
(
5 ♀♀
,
MPEG
)
.
Distribution in
Brazil
.
Pará
.
Remarks.
The female of
P.
(
P.
)
gulo
shares some morphological similarities with those of
P.
(
P.
)
hillifera
and
P.
(
P.
)
lutzi
, such as T5 with a triangular posterior margin (
Figs 78
,
84
,
90
). In addition, these three species are found mainly along the coast. Females of
P.
(
P.
)
gulo
can be distinguished from females of
P.
(
P.
)
hillifera
and
P.
(
P.
)
lutzi
by the following features: T5 reddish with spots of silver microtrichosity and a row of thick spine-like setae near posterior margin; ST6 with only one pair of median robust setae; T6 with grooves on its surface (
Figs 75, 78
,
81, 84
). In
P.
(
P.
)
hillifera
and
P.
(
P.
)
lutzi
T5 is brownish-black with spots of silver microtrichosity and with a row of long, not spine-like setae near posterior margin; ST6 has more than one pair of robust setae near posterior margin, and T6 lacks grooves on its surface. In addition,
P.
(
P.
)
gulo
is a large and robust species, reaching up to
20 mm
in length, while
P.
(
P.
)
hillifera
and
P.
(
P.
)
lutzi
reach about
17 mm
.
This species was collected only on oceanic beaches and in mangroves in the Brazilian Amazon, with traps baited with rotting organic matter (dead fish and crab, fermented banana and pineapple); it seems to be restricted to estuaries and marshy coastal habitats (
Reeves
et al.
2000
;
Buenaventura & Pape 2013
). Its larvae appear to breed only in dead crabs (
Reeves
et al.
2000
;
Méndez & Pape 2002
), which is consistent with some specimens obtained from a dead crab [
Ucides cordatus
(Linnaeus)] collected by Dr. Rita Santos (College Bragança, Universidade Federal do
Pará
) in mangroves of the Brazilian Amazon.