Survey of sand flies (Diptera: Psychodidae: Phlebotominae) in Guajará-Mirim State Park forest reserve, near the Brazil-Bolivian border, with a description of Pintomyia fiocruzi, a new sand fly species
Author
Júnior, Antonio Marques Pereira
Author
Marialva, Eric Fabrício
Author
Julião, Genimar Rebouças
Author
Pessoa, Felipe Arley Costa
Author
Medeiros, Jansen Fernandes
text
Zootaxa
2019
2019-10-31
4691
3
270
278
journal article
24999
10.11646/zootaxa.4691.3.7
e259c3a3-b3b9-4317-a298-114a4a7b5500
1175-5326
3527277
99269602-CE8B-4EC7-9A60-4B16A4CE7C26
Pintomyia fiocruzi
Pereira-Júnior, Pessoa, Marialva & Medeiros
,
sp. n.
(
Figure 2
)
Description Male.
Small,
1470 µm
in length (1492 µm–
1360 µm
) (thorax and abdomen), light brown color. Head (
Fig. 2A
): length
220 µm
(205 µm–
215 µm
), width
300 µm
(275 µm–
300 µm
); head length/width ratio 0.7 (0.7– 0.7). Eyes, length
181 µm
(164 µm–
205 µm
). Interocular suture incomplete, ommatidia diameter
15 µm
(7.8 µm–
15 µm
), interocular distance
65 µm
(61.5 µm–
61 µm
) equivalent to 8.3 times ommatidia diameter (7.81–7.8). Clypeus
101 µm
(106 µm–
102 µm
), labrum epipharynx (LE): length
181 µm
(191 µm–
121.9 µm
), labial sutures united in the furca. Antennae: flagellomeres with simple setae. FI:
210 µm
(211 µm–broken), FII:
95 µm
(98µm–broken), FIII:
98 µm
(99 µm–broken), FIV:
99 µm
(98 µm–broken), FV:
97 µm
(94 µm–broken), FVI:
93 µm
(94 µm–bro-ken), FVII:
85 µm
(89 µm–broken), FVIII:
89 µm
(90 µm–broken), FIX:
85 µm
(91 µm–broken), FX:
80 µm
(88 µm–broken), FXI:
82 µm
(87 µm–broken), FXII:
70 µm
(73 µm–broken), FXIII:
55 µm
(65 µm–broken), FXIV:
53 µm
(65 µm–broken). Ascoidal formula FI–FXIII 2, FXIV 0, ascoids simple and long, FI–FIII do not surpass the apical papilla. FI with internal ascoid implanted more basally than the external. Presence of preapical papilla in FI–FIII and FXII–FXIV (
Fig. 2B
). Palpal segment lengths: PI =
40 µm
(34.6 µm–
32 µm
), PII =
106 µm
(98.6 µm–
94 µm
), PIII =
128 µm
(120 µm–
106 µm
), PIV =
93.4 µm
(88 µm–
69 µm
) and PV =
200 µm
(210 µm–
191 µm
). Palpal formula 1.4.2.3.5 (same; same), PV <PI+PIII+PIV (
Fig. 2C
) (same; same). Presence of dispersed Newstead’s sensilla in third palpal segment.
Thorax: length from anterior margin of pronotum to posterior margin of metanotum
475 µm
(485 µm–
415 µm
). Color: light brown in the scutum; paratergitum, mesonotum, metanotum and coxae pale. Presence of ventro-cervical sensilla, five proepimeral setae, eight upper and two lower annepisternal setae, and setae present on the anterior margin of the katepisternum. Wing (
Fig. 2D
) length (
holotype
only)
1150 µm
and width
365 µm
; wing length/width ratio 3.15. Vein sections length (
holotype
only): R
5
863 µm
, alpha
225 µm
, beta
575 µm
, gamma
1185 µm
, delta
35 µm
, and pi
30 µm
. Leg length (
holotype
only): anterior, median and posterior, respectively: Coxa
290 µm
,
265 µm
,
275 µm
; Femur
600 µm
; Tibia
810 µm
; Tarsomere I
413 µm
, Tarsomere II + III + IV + V
550 µm
. Absence of spines in the posterior femur.
Abdomen length without terminalia
768 µm
(842 µm–
842 µm
). Presence of tergal papilla in tergites V–VIII. Terminalia (
Fig. 2
E-G): gonostyle (
Fig. 2
E-F) length
70 µm
(75 µm–
75 µm
), width
25 µm
(25 µm–
30 µm
), with a preapical spiniform seta and three spines in the following positions: one apical, one upper external and one internal (atrophied). The upper external spine is closer to the apical spine; the internal spine is atrophied and located on the middle of the gonostyle (
Fig. 2F
). Gonocoxite longer than wide, with presence of sclerotized band in the ventral margin, length
168 µm
(178 µm–
178 µm
), width
74 µm
(66 µm–
80 µm
); a cluster of six long setae (same; same) arranged in two longitudinal rows in the middle of the structure (
Fig. 2F
). Simple parameres, dilated in the basal and apical third and set apart by a constriction in the middle of the dorsal margin of the structure (
Fig. 2F
), length
106 µm
(114 µm–
109 µm
), maximum width
26 µm
(34 µm–
37 µm
); the apical third bears 19–21 setae (20 setae–20 setae) in the dorsal margin. Coniform parameral sheath (aedeagus), sclerotized (
Fig. 2F
) epandrial lobes (lateral lobes) with rounded apex, length
186 µm
(178 µm–
200 µm
), width
21 µm
(24 µm–
29 µm
). Spermatic pump (Ejaculatory pump), length
90 µm
(93 µm–
96 µm
), and ejaculatory apodeme (piston), length
64 µm
(72 µm–
61 µm
). Aedeagal ducts (filaments), length
320 µm
(300 µm–
345 µm
); with striations in the distal half and simple tips (
Fig. 2E and G
), ducts approximately five times the length of the pump. Cercus subtriangular.
Female.
Unknown
Taxonomic discussion.
Males of the Serrana group are characterized by the presence of papilla on the FIII, three spines on the gonostylus (one apical, one upper external and one internal) and by the presence of spiniform setae in the apex of the structure. These characters in combination allow
Pi
.
fiocruzi
to be classified as a member of the Serrana group which belongs to the
Pintomyia
genus and the
Pifanomyia
subgenus. The Serrana group comprises 15 species, distributed primarily in the Andes region. Four members of this group have been recorded in the Brazilian Amazon,
Pi
.
duckei
,
Pi. oreste
s,
Pi
.
odax
and
Pi
.
serrana
(
Galati 2018
;
Oliveira
et al
. 2018
) including two species in Rondônia State (
Galati 2018
). The
Pi
.
fiocruzi
sp. n.
male is different from other members of the Serrana group because the basal portion of the paramere is larger than the apical portion. The difference between these parts is prominent because there is a constriction in the middle of the paramere. The main morphological keys indicate that this species is similar to
Pintomyia oresbia
(
Fairchild & Hertig, 1961
)
, which occurs in forests at altitudes above 1,300 meters in
Panama
,
Colombia
and
Costa Rica
(
Fairchild & Hertig 1961
;
Ovallos
et al.
2013
). The known distribution of
Pi
.
fiocruzi
sp. n.
is still restricted to the municipalities of Nova Mamoré and Itapuã do Oeste, but its presence in this region suggests that it may be distributed along the Brazil-Bolivian border.
Diagnosis.
Combination of the following characters. Insect with coloration light brown. Ascoid long and simple. Newstead sensilla present in the medial part of the third palpal segment. Labial suture forked. Ventro-cervical sensilla present. Absence of spines in posterior femur. Tergal papilla present on segments V–VII. Gonocoxite longer than wide, with a cluster of 10 long setae in the middle of the structure. Gonostylus with three spines and presence of spiniform preapical setae. Simple parameres dilated in basal and apical area with a constriction in the middle of the dorsal margin. Aedeagal ducts elongated with simple tips. Epandrial lobes with rounded apex.
Type
Material.
The
holotype
is housed in the Invertebrates Collection of the National Institute of Amazonian Research (
INPA
),
Brazil
and the
paratypes
are housed in Entomology Laboratory of the Fiocruz
Rondônia
,
Brazil
.
HOLOTYPE
:
1 ♂
,
Itapuã do Oeste
(
9°08’38.65”S
,
62°54’34.55”W
), RO,
09-IX-2018
,
Jamari
FLONA
(
9°08’38.65”S
,
62°54’34.55”W
),
Pereira Júnior A. M.
,
Carvalho L. P. C.
PARATYPE
:
1 ♂
,
Itapuã do Oeste
(
9°08’38.65”S
,
62°54’34.55”W
), RO,
20-X-2018
,
Jamari
FLONA
,
Pereira Júnior A. M.
,
Carvalho L. P. C.
PARA- TYPE
:
1 ♂
,
Nova Mamoré
(
10°18’47.75”S
,
64°32’36.03”W
), RO,
10-III-2017
,
Guajará-Mirim Park
,
Pereira Júnior A. M.
,
Silva L. R.
Type Locality.
The
holotype
and one
paratype
were captured at canopy level using an HP light trap set along the “Santa Maria” trail, in Jamari
FLONA
, a conservation unit 120 kilometers outside Porto Velho municipality. Other
paratype
was captured at canopy level using an HP light trap set along the “Barragem 1” trail, in Guajará- Mirim Park, a conservation unit 90 kilometers outside the urban area of Nova Mamoré Municipality.
Etymology:
This species has been named in honor of the Oswaldo Cruz Foundation (commonly abbreviated as “Fiocruz”) in order to recognize the contribution that the institute has made to public health and research.