<p> <strong> Neotropical <em> Ablabesmyia </ em> Johannsen (Diptera: Chironomidae, Tanypodinae) – Part I </ strong> </ p>
Author
Oliveira, Caroline Silva Neubern De
csneubern@gmail.com
Author
Silva, Mário Antonio Navarro Da
Author
Gessner, Alaíde Aparecida Fonseca
text
Zootaxa
2013
2013-11-04
3733
1
1
123
http://dx.doi.org/10.11646/zootaxa.3733.1.1
journal article
10.11646/zootaxa.3733.1.1
1175-5326
5268657
EE758378-9459-4970-8D59-5258597A0E28
Ablabesmyia cordeiroi
Neubern
sp. n.
(
Figs 14
,
15
)
Type
material.
Holotype
:
♂
,
Brazil
,
Amazonas
,
Manaus
,
Cueiras
park ZF02,
60°06`55``W
–
02°35`22``S
,
14.vii.2008
,
C.S.N. Oliveira
—
LEIA
.
Paratypes
:
2 ♂♂
, same data as holotype—
LEIA
;
4 ♂♂
, same data as holotype—
DZUP
.
Diagnostic characters.
Ablabesmyia cordeiroi
sp. n.
differs from other species by the combination of the following characters: femora with 2 bands, middle tibia with 3 bands, m-cu towards to f-cu,
R
3
apex close to C, gonostylus with 6 apical teeth, tapered megaseta, grooved aedeagal blade, dorsal lobe club-shaped with fringe, anal point absent.
Etymology.
Named after Dr. Danilo Pacheco Cordeiro, in recognition for his friendship and continuous support.
Male
(n = 5, unless otherwise stated):
Dimensions
: Total length
3.37–3.76 mm
. Wing length
1.40–1.56 mm
. Total length/wing length 2.34–2.41. Wing length/length of profemur 2.19–2.23.
Coloration
(
Figs 14A–F
,
15A
): wings, thorax and abdomen follow figures 14A, 14B and 14F, respectively. Legs (Fig.): P
I,
P
III
—femora with 2 bands, tibiae with 3 bands; P
II
—femur with 3 bands, tibia with 3 bands. Ratio of bands, related tibiae and tarsomeres
1
follow table 12. Hypopygium: gonocoxite apex and gonostylus base brown.
TABLE 12.
Ratio of bands, related tibiae and tarsomeres
1
of
A. cordeiroi
sp. n.
, ♂, (n=5).
A/B |
LMB/LBCB |
Y/Z |
P I |
0.49-0.50 |
0.86–0.91 |
0.29–0.32 |
P II |
0.52 |
1.06–1.17 |
0.29–0.30 |
P III |
0.48–0.49 |
0.98–1.00 |
0.29–0.30 |
FIGURES 14A–F.
Ablabesmyia cordeiroi
sp. n.
: adult male. (A) Wing; (B) Thorax; (C–E) P1 (C), P2 (D), P3 (E); (F) Abdomen.
FIGURES 15A–D.
Ablabesmyia cordeiroi
sp. n.
: adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect; (D) Aedeagal complex.
Head
: antenna with 14 flagellomeres; AR 1.66–1.73; apical flagellomere 106–118 µm and subapical seta 28– 31 µm long; temporals 40–44; postoculars 12; coronal triangle 277–308 µm long and base 91–101 µm; clypeus bearing 27–31 setae, 86–96 µm long and 100–111 µm wide; labrum with 3 setae, 87–97 µm long and 41–48 µm wide; tentorium 157–175 µm long; cibarial pump 292–305 µm long and orifice 80–83 µm from apex; palpomeres
1–5
: 40–46; 68–75; 119–134; 149–166; 239–266 µm long; palpomere
3
with sensilla capitata 29–33 µm from base.
Wing
(
Fig. 14A
): width/lenght 0.28–0.29; VR 0.73; C
1.23–1.38 mm
long; Sc
0.46–0.52 mm
long; m-cu 25–28 µm long and 370–412 µm from arculus; fr 504–563 µm from arculus; R
3
apex close to C; brachiolum with 3 setae; squama with 40–42 setae.
Thorax
(
Fig. 14B
): antepronotals 7–8; humerals 5; prealars 17–23; supraalar 1; scutelars 33–35.
Legs
(
Fig. 14C–E
): P
I
–apex of tibia 43–44 µm wide and with apical pectinated spur 57–62 µm long, spur ratio 0.61–0.65; tarsomeres
1–2
with 1 or 2 pseudospurs 55–66 µm long. P
II
–apex of tibia 47–50 µm wide and with 2 apical pectinated spurs 33–38 and 23–29 µm long, spurs ratio 0.57–0.60 and 0.56–0.64 respectively; tarsomeres
1–3
with 1 or 2 pseudospurs 55–67 µm long. P
III
–apex of tibia 46–47 µm wide and with 2 apical pectinated spurs 61–68 and 38–45 µm long, spurs ratio 0.63–0.70 and 0.66–0.80 respectively; tarsomeres
1–3
with 2 pseudospurs 65–75 µm long. Lengths and proportions of leg segments table 13.
TABLE 13.
Lengths (in µm) and proportions of leg segments in
A. cordeiroi
sp. n.
, ♂, (n=5).
fe |
ti |
ta1 |
ta2 |
ta3 |
ta4 |
P I |
631–703 |
661.5–737 |
523–583 |
354–393 |
261.5–291 |
200–223 |
P II |
665–741 |
621–693 |
614 |
416 |
307 |
235 |
P III |
631–703 |
661.5–737 |
583 |
395 |
291 |
222 |
TABLE 13.
(Continued)
ta5 |
LR |
BV |
SV |
BR |
P I |
108–120 |
0.79–0.82 |
1.97–2.00 |
2.42–2.47 |
4.2–4.6 |
P II |
127 |
0.89 |
1.89 |
2.33 |
5.0 |
P III |
120 |
0.79 |
1.97 |
2.47 |
5.3 |
Hypopygium
(
Fig. 15A–D
): tergite IX with 2 central setae; anal point absent; phallapodeme 47–51 µm long; sternapodeme 143–146 µm long; gonocoxite 130–145 µm long and 104–115 µm wide; gonostylus 122–135 µm long, with 6 apical teeth; tapered megaseta; HR 1.07–1.08; HV 2.68–2.79. Aedeagal complex: grooved aedeagal blade 43–48 µm long and base 11–12 µm, 9/106 µm; dorsal lobe club-shaped with fringe, 19–22 µm long and base 7–8 µm, lateral lobe and basidorsal lobe present.
Female and immatures.
Unknown.