New species and revisions of Pediciidae (Diptera) from the Middle Jurassic of northeastern China and Russia
Author
Gao, Jiaqi
Author
Shih, Chungkun
Author
Kopeć, Katarzyna
Author
Krzemiński, Wiesław
Author
Ren, Dong
text
Zootaxa
2015
3964
1
77
86
journal article
10.11646/zootaxa.3964.1.4
b7bb96ca-88c9-48e4-9dbb-a1d4772b0407
1175-5326
288700
E34D99B8-5694-413E-8C1F-0974604A9654
Praearchitipula mirabilis
sp. nov.
(
Fig. 5
)
Diagnosis.
Cross-vein sc-r at a short distance distal from the origin of Rs; cross-vein r-m reaching R5 not far from the forking of R4+5; cell m1 slightly longer than petiole of cell m1 (dM1+2); M1+2 only 1/3 as long as M1; d-cell about 1/ 7 of the length of wing; cross-vein m-cu just proximad of the bifurcation of M3+4. (Note: The positions of sc-r and m-cu are unique features distinguishing this new species from the other species of this genus.)
Etymology.
The specific name is derived from a Latin word “
mirabilis
”, referring to the peculiar and different position of cross-vein sc-r distal of the origin of Rs.
Description.
A medium-sized crane fly, body length
8 mm
with well-preserved wings. Head oviform, but features of the head (e.g. tip of the rostrum, palpi and antennae) unidentifiable; compound eyes preserved. The thorax well-preserved; the boundaries between prothorax, mesothorax and metathorax distinct in lateral view; mesonotum robust and well-developed; some parts of mesopleura distinguishable; halter spoon-shaped,
1.4 mm
long. The legs long and slender. The abdomen poorly preserved, relatively long and slender, with 8 clear segments. Female with ovipositor discernible.
Wing:
The right wing well-preserved. Length
6.7 mm
and width
2.4 mm
, 2.8 times as long as wide. Wing clear with light-colored pterostigmal region. Venation: Sc long, 0.71 times of the wing length and ending distad of the level of branching of R4+5; cross-vein sc-r far from the tip of Sc, at a short distance distal from the origination of Rs; Rs of moderate length, strongly arcuated at origin; Rs arising from 0.33 times the length of wing, Rs bifurcates into R2+3 and R4+5 at 0.66 times length of wing,; R1 long; r-r (R2) close to R1 tip, transverse; R4+5 short, 0.19 times as long as R2+3. Stem of vein M bifurcating at the same level of the branching of Rs; cell m1 petiolate; mM1+2 nearly as long as cell m1, cell m1 1.2 times as long as petiole of cell m1 (dM1+2); crossvein r-m entering R5 not far from the forking of R4+5, dR5 twenty times as long as bR5; discal cell long, about 1/7 of the wing length; cross-vein m-cu distinctly proximad of M3+4 bifurcation, bM3+4 4 times as long as dM3+4; cross-vein m-cu close to the bifurcation of M3+4; Cu long; anal veins long and divergent.
Material examined.
Holotype
, female, CNU-DIP-NN2014003 (
Fig. 5
), a partly preserved specimen of a hairy-eyed crane fly in lateral view, with partly-preserved abdomen, the wing clearly visible as preserved.