Lance lacewings of the world (Neuroptera: Archeosmylidae, Osmylidae, Saucrosmylidae): review of living and fossil genera
Author
Winterton, Shaun L.
Author
Martins, Caleb Califre
Author
Makarkin, Vladimir
Author
Ardila-Camacho, Adrian
Author
Wang, Yongjie
text
Zootaxa
2019
2019-04-09
4581
1
1
99
journal article
27348
10.11646/zootaxa.4581.1.1
5b259853-01f6-4307-8bef-58c98ec73bd3
1175-5326
2633842
20A9776D-AE5F-41BC-A35B-0C5E42EDFE48
SPILOSMYLINAE
Krüger, 1913a
Type
genus.
Spilosmylus
Kolbe, 1897
: 34
Diagnosis
. Antenna shorter than FW; ocelli sometimes with median (or all) ocelli absent; pronotum length subequal to width; female forecoxa without processes; wing shape variable, including ovoid, sub-triangular, elongate or slightly falcate; costal area relatively narrow, subcostal veinlets simple (rarely forked) and without interlinking crossveins, densely spaced; trichosors present along entire wing margin; wings typically hyaline with dark pattern (especially FW) as mottling, bands, or fenestrations, sometimes with embossed spot present in FW CuP branches; FW with single sc-r crossvein basally; RP with 8-16 branches that may be slightly sinuous distally, 1–3 distinct gradate series in both wings, often dense crossveins in basal part of wing; FW M fork close to level with origin of RP1; MP base usually with a spur vein; HW medial area not expanded; CuA usually with more branches in HW than in FW; HW CuP short, simple, sometimes forked near wing margin; male abdominal tergites 8 and 9 as separate sclerites without scent glands, gonarcus narrow, arch-like and lacking setae, entoprocesses narrow and curved, mediuncus with a basal sclerotized arm, parameres present, fused medially as a single sclerite; female genitalia with sternite 8 as a small, knob-like process, located posteriorly proximal to gonocoxite 9, gonapophyses and gonocoxites 9 closely associated or appearing fused, spermathecal duct greatly elongate and coiled.
Comments
.
Spilosmylinae
comprise three extant and two extinct genera widely distributed throughout tropical and subtropical parts of the Old World, ranging from southern Africa and
Madagascar
, throughout Asia and Australasia; while being found in
Australia
the subfamily is restricted to northern tropical regions.
Spilosmylinae
is by far the most species rich subfamily with 118 species, the bulk of which being placed in
Spilosmylus
. The distinction of
Spilosmylus
from
Thaumatosmylus
and
Thyridosmylus
is poorly defined and lacks characters which diagnose any one of these genera from the other two consistently across all species. Diagnostic characters presently used are themselves highly variable with multiple exceptions and species exhibiting apparent intermediate conditions. In their phylogenetic analysis,
Winterton
et al.
(2017)
recovered
Thaumatosmylus
as sister to a clade containing
Spilosmylus
and
Thyridosmylus
, with all three genera as monophyletic. Traditionally placed in
Spilosmylinae
(e.g.,
Krüger, 1913
),
Lysmus
was instead recovered in
Protosmylinae
as sister to
Gryposmylus
.
Spilosmylinae
had been rarely treated since important taxonomic and faunistic revisions by
Kimmins (1942)
and
New (1986
, 1988,
1991
), although several species of spilosmylines have been described recently (
Xu
et al
., 2017
) (
Thyridosmylus
) and
Badano & Winterton (2017)
(
Spilosmylus
) to complement phylogenetic studies of
Thyridosmylus
by
Wang
et al.
(2011)
and
Zhao
et al.
(2013)
. Larvae inhabit riparian zones of lotic watercourses.
Included genera.
Ensiosmylus
Khramov
,
Imanosmylus
Makarkin
,
Spilosmylus
Kolbe
,
Thaumatosmylus
Krüger
,
Thyridosmylus
Krüger.