The genus Bradysia Winnertz (Diptera, Sciaridae) in New Caledonia, with the description of thirteen new species
Author
Vilkamaa, Pekka
Author
Hippa, Heikki
Author
Mohrig, Werner
text
Zootaxa
2012
3489
25
44
journal article
10.5281/zenodo.214293
9b79a6b5-81c5-408b-b623-0eb57538cfd2
1175-5326
214293
CF34892F-511C-46AB-926B-5B9DB64DE298
Bradysia stricta
sp. n.
Figs 13
A–D
Material studied.
Holotype
male.
NEW
CALEDONIA
, Rivière Bleue N.P., (parc 7), rainforest,
21.vii.1992
, Bonnet de Larbogne, Chazeau & Guilbert (in
MNHN
).
Paratypes
.
1 male
, same data as
holotype
(in
MNHN
);
1 male
, Ouinné Valley,
730 m
,
22°02'S
,
166°28'E
, humid forest with araucarians,
27–30.x.1984
, Tillier & Bouchet (in
MNHN
).
Description.
Male.
Head
. Brown, antenna unicolorous brown, maxillary palpus very pale brown. Eye bridge 3 facets wide. Face with 9–10 scattered longer and shorter setae. Clypeus with 1–2 setae. Maxillary palpus with 3 palpomeres; palpomere 1 longer than palpomere 3, palpomere 2 shortest; palpomere 1 with 4 setae, with a dorsal patch of sensilla in a shallow depression; surface of antennal flagellomeres rough, body of flagellomere 4 (
Fig. 13
A) 1.95–2.0x as long as wide, the neck shorter than broad, the longest setae as long as the width of flagellomere.
Thorax
. Pale brown, setae dark. Anterior pronotum with 5–6 setae. Episternum 1 with 3–5 setae. Scutum with long dorsocentrals, with some longer and shorter laterals, scutellum with 2 longer and some short setae.
Wing.
Hyalinous. Length
1.3 mm
. Width/length 0.40. Veins distinct. R1/R 0.65. c/
w 0.80
. r-m and than bM subequal in length. M, CuA, bM non-setose, r-m with 1 seta.
Legs
. Yellow. Coxal setae pale. Apical part of front tibia,
Fig. 13
B: tibial organ with pale vestiture forming a short row. Front tibial spur slightly longer than the tibial width. Claws without teeth.
Abdomen
. Setae dark.
Hypopygium (
Figs 13
C, D). Pale brown, paler than abdomen. Intercoxal lobe with 5 setae.
Gonocoxa
narrow, longer than gonostylus, mesial margin with long setae on the apical half, basoventrally with mesial area of denser setosity.
Gonostylus
narrow, straight, narrowed only at very apex, with the mesial side weakly impressed; with dense apical setosity, with a strong apical tooth, with 5 subapical megasetae, the basalmost of which separated from the others. Tegmen truncate, with rather straight lateral sides, weakly sclerotized, with a small area of aedeagal teeth.
Discussion.
Bradysia stricta
can be distinguished from all other New Caledonian species of
Bradysia
in having both the intercoxal lobe in its hypopygium and the apical tooth on its gonostylus.
Bradysia nudilobata
also has an intercoxal lobe of the hypopygium, but with short setosity, not as long as
B. stricta
, and it lacks the apical tooth. For the other two New Caledonian species of
Bradysia
with the apical tooth of the gonostylus, see under
B. aequispina
.
Bradysia stricta
can be placed in the
B. angustipennis
group in the sense of
Menzel and Mohrig (2000)
.
Etymology.
The name is Latin,
stricta
, straight, referring to the straight gonostylus.