New genera and species of the minute snakeflies (Raphidioptera: Mesoraphidiidae: Nanoraphidiini) from the mid Cretaceous of Myanmar
Author
Liu, Xingyue
Author
Lu, Xiumei
Author
Zhang, Weiwei
text
Zootaxa
2016
4103
4
301
324
journal article
10.11646/zootaxa.4103.4.1
cbd5532b-82f3-4fc1-a7f3-cd1a0e795c49
1175-5326
264759
B6428194-1C7A-4A9F-9038-EE4A78222A06
Genus
Dolichoraphidia
gen. nov.
(
Figs. 1–4
)
Type
species:
Dolichoraphidia aspoecki
sp. nov.
Diagnosis.
Minute size. Head ovoid, with portion posterior to compound eyes slightly shorter than eye length and tapering caudad, and with clypeus slightly shorter than compound eye length; compound eyes large, ovoid; ocelli absent; antenna extremely long, at least twice as long as body length, with 100 or more flagellomeres. Pronotum nearly as long as or slightly longer than head, with a constant height along entire length in lateral view. All tibiae swollen, each tibia with a row of spines on distal half; tibial spurs absent. Wings narrowly elongate. Forewing: Costal space feebly broadened; pterostigma elongate, ~1/5× wing length, starting a distance beyond termination of ScP, with or without pterostigmal crossvein, proximally closed by a crossvein and distally closed by a veinlet of RA; ScP terminating into C at wing midpoint; posterior veinlet of RA continuous with stem of RA;
RP
with anterior branch proximally angled; two radial cells, one discal cell, and one or two discoidal cells present. Hindwing: Stem of MA proximally fused with MP; an oblique proximal mp-cua present; three radial cells, one discal cell, and one discoidal cell present.
Etymology.
From “
dolich
-”, long and
Raphidia
, a common genus-group name of
Raphidioptera
, in reference to the extremely long antennae of the new genus. Gender: feminine.
Remarks.
The new genus is one of the most distinguishable snakeflies based on its extremely elongate antennae, with 100 or more flagellomeres. In all other known genera of Nanoraphidiini the antennae are much shorter, with 20–40 flagellomeres. The wing venation of
Dolichoraphidia
gen. nov.
somewhat resembles that of
Lebanoraphidia
Bechly & Wolf-Schwenninger, 2011
. However, in
Dolichoraphidia
gen. nov.
the wings are much narrower, the Rp is distally bifurcated, and the metatibia is swollen. In
Lebanoraphidia
the wings are moderately broad, the Rp is simple, and the metatibia is not swollen.