Quasi

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Gillung J, Winterton S (2011) New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera. ZooKeys 127 : 15–27, doi. Versioned wiki page: 2011-09-08, version 14006, https://species-id.net/w/index.php?title=Quasi&oldid=14006 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Gillung2011ZooKeys127,
author = {Gillung, Jéssica P. AND Winterton, Shaun L.},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera},
year = {2011},
volume = {127},
issue = {},
pages = {15--27},
doi = {10.3897/zookeys.127.1824},
url = {http://www.pensoft.net/journals/zookeys/article/1824/abstract},
note = {Versioned wiki page: 2011-09-08, version 14006, https://species-id.net/w/index.php?title=Quasi&oldid=14006 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera
A1 - Gillung J
A1 - Winterton S
Y1 - 2011
JF - ZooKeys
JA -
VL - 127
IS -
UR - http://dx.doi.org/10.3897/zookeys.127.1824
SP - 15
EP - 27
PB - Pensoft Publishers
M1 - Versioned wiki page: 2011-09-08, version 14006, https://species-id.net/w/index.php?title=Quasi&oldid=14006 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.127.1824

Wikipedia/ Citizendium:

<ref name="Gillung2011ZooKeys127">{{Citation
| author = Gillung J, Winterton S
| title = New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera
| journal = ZooKeys
| year = 2011
| volume = 127
| issue =
| pages = 15--27
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.127.1824
| url = http://www.pensoft.net/journals/zookeys/article/1824/abstract
| pmc =
| accessdate = 2025-03-06

}} Versioned wiki page: 2011-09-08, version 14006, https://species-id.net/w/index.php?title=Quasi&oldid=14006 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Diptera
Familia: Acroceridae

Name

Quasi Gillung & Winterton, 2011 gen. n. – Wikispecies link – ZooBank link – Pensoft Profile

Type species

Quasi fisheri sp. n.

Diagnosis

Body shape arched; colouration non-metallic pale brown; head width slightly smaller than thorax width; shape hemispherical; postocular ridge and occiput rounded; posterior margin of eye rounded; eyes bare; three ocelli present, medial ocellus slightly smaller; position of antennae on head nearer to mouthparts; eyes contiguous above antennal base, not contiguous below; palpi absent; proboscis much shorter than head length; flagellum shape stylate, apex with terminal seta; thorax with postpronotal lobes enlarged, medially contiguous to form collar; subscutellum not enlarged, barely visible; legs with tibial spines absent; pulvilli present; legs not greatly elongated; wing hyaline, markings absent; costa ending in radial field; costal margin straight; humeral crossvein absent; radial veins meeting wing margin before wing apex; R1 slightly inflated distally at pterostigma; R2+3 present, reaching wing margin; R4+5 present as very short, single vein, not reaching wing margin; medial vein compliment with only one M vein present; discal cell absent; medial vein very short, not reaching wing margin; cell m3 absent; crossvein 2r-m absent; Cu reduced, not reaching wing margin; anal lobe not enlarged; alula well developed; abdomen smooth, shape rounded, cylindrical, similar width to thorax.

Etymology

Derived from Latin quasi, appearing as if resembling; referring to the likeness of this species to members of Terphis.

Comments

This genus is represented by only a single species Quasi fisheri sp. n. from Veracruz, Mexico. It is closely related to Terphis and Philopota based on reduction in wing veins. The position of the antennae, proximate to the reduced mouthparts, reduced wing venation and absence of abdominal tubercles readily differentiates this genus from all other philopotine genera.

Original Description

  • Gillung, J; Winterton, S; 2011: New genera of philopotine spider flies (Diptera, Acroceridae) with a key to living and fossil genera ZooKeys, 127: 15-27. doi

Images

Figure 1. Quasi fisheri gen. et sp. n. A head and postpronotal lobes, anterior B wing C head, lateral. Schlingeriella irwini gen. et sp. n. D wing. Eulonchiella eocenica Meunier E head and postpronotal lobes, anterior F habitus in situ, lateral. Scale line = 0.2 mm.
Figure 1. Quasi fisheri gen. et sp. n. A head and postpronotal lobes, anterior B wing C head, lateral. Schlingeriella irwini gen. et sp. n. D wing. Eulonchiella eocenica Meunier E head and postpronotal lobes, anterior F habitus in situ, lateral. Scale line = 0.2 mm. 
Figure 3. Quasi fisheri gen. et sp. n., male, anterolateral view [Morphbank: 693076]. Body length = 6.0 mm.
Figure 3. Quasi fisheri gen. et sp. n., male, anterolateral view [Morphbank: 693076]. Body length = 6.0 mm. 
Figure 5. Quasi fisheri gen. et sp. n., male, anterior view [Morphbank: 693078]. Body length = 6.0 mm.
Figure 5. Quasi fisheri gen. et sp. n., male, anterior view [Morphbank: 693078]. Body length = 6.0 mm. 
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