Dolichoraphidia, Liu, Xingyue, Lu, Xiumei & Zhang, Weiwei, 2016

Liu, Xingyue, Lu, Xiumei & Zhang, Weiwei, 2016, New genera and species of the minute snakeflies (Raphidioptera: Mesoraphidiidae: Nanoraphidiini) from the mid Cretaceous of Myanmar, Zootaxa 4103 (4), pp. 301-324: 302-303

publication ID

http://doi.org/10.11646/zootaxa.4103.4.1

publication LSID

lsid:zoobank.org:pub:B6428194-1C7A-4A9F-9038-EE4A78222A06

persistent identifier

http://treatment.plazi.org/id/03FBD81A-AF2E-FFA0-FF58-F955AC0BA5A1

treatment provided by

Plazi

scientific name

Dolichoraphidia
status

gen. nov.

Genus Dolichoraphidia   gen. nov.

( Figs. 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 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.