New species and new records of the predaceous midge genus Parabezzia Malloch (Diptera: Ceratopogonidae) from Brazil
Author
Felippe-Bauer, Maria Luiza
Author
Spinelli, Gustavo R.
text
Zootaxa
2015
3915
3
390
402
journal article
10.11646/zootaxa.3915.3.4
73180c79-602c-4b84-a8d0-d2f2371cbc42
1175-5326
233823
B06C27E3-A16A-4B88-A9B3-4819E98A5AE4
Parabezzia casimirensis
Felippe-Bauer & Spinelli
,
sp. nov.
Figs. 14–20
Diagnosis
. The only Neotropical species of the
Parabezzia brunnea
group in which the females are large (wing length
1.2–1.4 mm
), the fore and hind tarsomeres 5 have prominent ventral swelling, and the hind tarsal claws are slightly longer than the fore and mid ones, with the mid claws smaller.
Female
. Head brown. Eyes separated by V-shaped space equal to diameter of 2.5 (n=4) ommatidia at level of interocular setae (
Fig. 18
). Antennal flagellum pale brown (
Fig. 15
); pedicel brown; antennal ratio 1.07–1.12 (1.08, n=4). Clypeus with 12–14 slender setae. Palpus pale brown (
Fig. 16
); segment 3 with few capitate hyaline sensilla on inner mesal surface; palpal ratio 3.6–3.8 (3.7, n=4). Mandible with 7–9 teeth.
Thorax dark brown. Scutum with 4 presutural, 4–5 posterolateral setae; scutellum with 9–11 (4–6 stout, 5–6 delicate) setae. Wing (Fig. 14) length 1.2–1.4 (1.3, n=4) mm; breadth 0.54–0.63 (n=0.58, n=4) mm; membrane slightly infuscated; Sc, M, r-m, R1 and R3 brown; wing sections lenght 770–530–65µ, two setae on costa proximad of basal arculus; costal fringe long in margin and center of costa, uniformly distributed along margin of vein and sparsely distributed on center of vein in the distal ½ of section I and in sections II and III; R3 ending at 0.98 of wing lenght; costal extension reaching 0.37–0.48 (0.42, n=4) the length from tip of R3 to tip of M1. Halter pale brown. Legs brown (
Fig. 20
), hind legs darker; hind tibial comb with 7–10, commonly 10 spines (n=4); tarsi paler (
Fig. 19
), palisade setae in single row on hind tarsomere 1; fore and hind tarsomere 5 with prominent ventral swelling, inconspicuous on mid tarsomere 5; hind tarsal claws slightly longer than fore and mid tarsal claws, being the mid claws the smallest, lengths of larger and smaller talons of fore, mid and hind claws: 115/45 – 98/33 – 135/50 µ (n=4); longest talon of fore, mid and hind leg claws smaller than lenght of their respective tarsomeres 5, LC/T ratios of fore, mid and hind legs 0.85–0.85–0.94 (n=4); hind tarsal ratio 2.6–2.8 (2.7, n=4).
FIGURE 14.
Parabezzia casimirensis
sp. nov.
, female. A. Wing; B. Wing base, showing costa; C. Wing apex, showing r3.
FIGURES 15–20.
Parabezzia casimirensis
sp. nov.
, female. 15. Antenna; 16. Palpus, lateral view; 17. Spermathecae; 18. Eyes separation, anterior view; 19. Tarsi (left to right) fore, mid-and hind tarsomeres, lateral view; 20. Legs (left to right) of fore, mid- and hindlegs, lateral view.
Abdomen brown. Two subequal ovoid spermathecae (
Fig. 17
) with very short necks, when present, measuring 77.5
X 60
µ and
70 X
55 µ (n=4).
Male
. Unknown.
Distribution
.
Brazil
(Rio de Janeiro).
Types
.
Holotype
♀,
BRAZIL
, Rio de Janeiro, Casimiro de Abreu, Union Biological Reserve (22° 25′ 35″ S, 42° 2′ 4″ W),
28.XII.2012
–
31.I.2013
, “
Biota
Diptera Fluminense
” team col., Malaise trap (CCER).
Paratypes
, 3 ♀: 1 ♀, same data as
holotype
(CCER), 2 ♀, same data as
holotype
except
16.III–25.IV.2013
(CCER; MLP).
Etymology
. This species is named after the originairies of Casimiro de Abreu, municipality of Rio de Janeiro State, where the specimens were collected.
Taxonomic discussion
.
Parabezzia casimirensis
differs from the other Neotropical species of the
brunnea
species group by its wing length
1.2–1.4 mm
(
1.03 mm
in
P. caribbeana
, 1.00 mm in
P. arenosa
,
0.93–0.98 mm
in
P. unica
sp. nov.
), by the fore and hind tarsomere 5 with prominent ventral swelling, inconspicuous on mid tarsomere 5 (ventral swelling absent on hind tarsomere
5 in
P. a re n os a
and
P. caribbeana
, on mid tarsomere
5 in
P. unica
sp. nov.
, on all tarsomeres in
P. brunnea
), and by the hind tarsal ratio 2.6–2.8 (
2.4 in
P. arenosa
,
2.5 in
P
.
caribbeana
and
P. indistincta
sp. nov.
,
3.6 in
P. fuscipennis
).