Diverse Orthorrhaphan Flies (Insecta: Diptera: Brachycera) In Amber From The Cretaceous Of Myanmar: Brachycera In Cretaceous Amber, Part Vii David A. Grimaldi
Author
Grimaldi, David A.
text
Bulletin of the American Museum of Natural History
2016
2016-09-28
2016
408
1
132
http://www.bioone.org/doi/10.1206/0003-0090-408.1.1
journal article
10.1206/0003-0090-408.1.1
0003-0090
5380942
Genus
Galloatherix
Nel et al.
Galloatherix
Nel, de Ploëg, and Perrichot, 2014: 592
.
TYPE
SPECIES
:
Galloatherix incompletus
Nel, de Ploëg, and Perrichot, 2014: 592
. An isolated wing in Late Albian–Early Cenomanian amber from near Archingeay, Charentes-Maritime,
France
.
EMENDED DIAGNOSIS
:
Nel et al. (2014)
diagnosed
Galloatherix
based on the following wing vein features:
R
2+3
sinuous, apex close to (but not contacting) apex of
R
1
; cell m
3
not present (tips of M
3
and CuA
1
distant, each meeting wing margin); cell br only slightly longer than cell bm; veins M
1
, M
2
, and M
3
longer than discal cell. To this diagnosis can provisionally be added: sexual dimorphism in mouthparts, proboscis of female ca. 2.5× the length of that in male; palp slender, digitiform; flagellomere 1 reniform; post-metathoracic spiracle scale and suprametacoxal pit absent; proscutellum present; with 1-2-2 long tibial spurs; cerci 2-segmented.
COMMENTS: The wing venation of
G. completus
,
n. sp.
, and
G. incompletus
from the Cretaceous of
France
are very similar, with diagnostic species differences as noted below. Additional features based on nonwing characters were added to the generic diagnosis, above, but must be considered provisional until specimens of
G. incompletus
are found that have the body.