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
STENOSMYLINAE
Krüger, 1913a
Type
genus.
Stenosmylus
McLachlan, 1867
: 267
.
Diagnosis
: Ocelli present; antennae length variable, often between half and full length of FW; pronotum length longer than width; female forecoxa sometimes with narrow process and/or pedicellate setae; wings with subcostal veinlets simple, rarely occasionally forked; trichosors present around entire margin of both wings; FW with single
sc-r
crossvein basally; FW RP crossveins dense, semi-regularly arranged, lacking distally with distal RP branches variably sinuous; outer gradate series distinct, inner gradate series absent; FW M vein forked at, or beyond the midlength of wing; medial area between MA-MP not expanded and crossveins not sinuous; CuA with more branches in HW than in FW; HW CuP elongate and pectinately branched; female sometimes with FW veins MP, CuA and/or A1 partially incrassate; male abdominal tergites 8 and 9 partially or completely fused, scent glands absent; gonarcus enlarged, subtriangular with setal pile, entoprocesses broad; parameres absent; female sternite 8 modified into a large concave sclerite that acts as a receptacle for gonapophysis 9; gonapophysis 9 enlarged, complex, variously bilobed, located anteriorly to ventral part of tergite 9, not closely associated with gonocoxite 9; gonocoxite 9 often with dark longitudinal stripe; spermatheca ovoid to spherical. Larvae typically have a pale to cream colouration with light brown sclerites (
Fig. 1B, C
).
Comments
. In their phylogenetic analyses
Winterton
et al.
(2017)
supported previous contentions (e.g.,
Krüger 1913a
;
Esben-Petersen, 1917
; Kimmins, 1 940;
New, 1986
) that
Stenosmylinae
are closely related to
Kempyninae
, and also Porisminae and Eidoporisminae. In fact,
Winterton
et al.
(2017)
could not recover reciprocal monophyly of
Stenosmylinae
, Porisminae or Eidoporisminae in their phylogeny, thus calling into question the validity of all three as separate subfamilies. It is plausible that the monotypic Porisminae and Eidoporisminae each simply represent highly derived and autapomorphic forms of
Stenosmylinae
.
Stenosmylinae
comprise five Australian genera and two genera in South America. No definitive fossil taxa have been discovered, although
Jepson
et al.
(2009)
placed
Stenosmylina
in the subfamily based on an incomplete forewing; herein we consider this genus better placed in Eidoporisminae (see above).
Stenosmylinae
represent a truly southern hemisphere fauna, with connections between the Australian and South American forms likely pre-dating any trans-Antarctic connection during the Late Cretaceous-Early Paleogene (
Winterton
et al.
, 2017
). Larval stages are terrestrial, living under bark of trees, in leaf litter and on foliage (
Winterton
et al.
, 2017
;
Martins
et al
., 2018
).
Included genera
.
Carinosmylus
New,
Euporismus
Tillyard
,
Isostenosmylus
Krüger
,
Oedosmylus
Krüger
,
Phymatosmylus
Adams
,
Stenolysmus
Kimmins
,
Stenosmylus
McLachlan.