First record of anaxyelid woodwasps (Hymenoptera: Anaxyelidae) in Lower Cretaceous Spanish amber
Author
Ortega-Blanco, J.
Dep. d'Estratigrafia, Paleontologia I Geociències Marines, Facultat de Geologia, Universitat de Barcelona, 08071 Barcelona, Spain. E-mail: j. ortega. blanco @ ub. edu, xdelclos @ ub. edu Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya Str. 123, 117997, Moscow, Russia, and Natural History Museum, Cromwell Road SW 7 5 BD, London, England. E-mail: rasna _ us 2002 @ yahoo. com
Author
Rasnitsyn, A. P.
Author
Delclòs, X.
Dep. d'Estratigrafia, Paleontologia I Geociències Marines, Facultat de Geologia, Universitat de Barcelona, 08071 Barcelona, Spain. E-mail: j. ortega. blanco @ ub. edu, xdelclos @ ub. edu Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya Str. 123, 117997, Moscow, Russia, and Natural History Museum, Cromwell Road SW 7 5 BD, London, England. E-mail: rasna _ us 2002 @ yahoo. com
text
Zootaxa
2008
2008-11-19
1937
39
50
http://www.mapress.com/j/zt/article/view/5429
journal article
11755334
Subfamily
Syntexinae
Benson, 1935
Remarks
: The family
Anxyelidae
is included in the
Siricoidea
[=
Anaxyelidae
+ “
Gigasiricidae
” +
Siricidae (
sensu
Grimaldi & Engel 2005
)
; =
Anaxyelidae
+
Protosiricidae
+
Daohugoidae
+
Siricidae
+
Xiphydriidae
(
sensu
Rasnitsyn & Zhang 2004a
, b,
Rasnitsyn 2006
)] and comprises four subfamilies: the Late Jurassic
Anaxyelinae Martynov, 1925
, the Late Jurassic or Lower Cretaceous
Kempendajinae
Rasnitsyn, 1980
, the Lower Cretaceous
Dolichostigmatinae, Rasnitsyn 1968
and the Lower Cretaceous – Recent
Syntexinae
Benson, 1935
. The palaeogeographical range of the family is extensive, specimens being known from Central Asia,
England
,
Spain
and
Brazil
. The
Syntexinae
includes three genera: the extant
Syntexis
Rohwer, 1915
and two Lower Cretaceous genera,
Eosyntexis
Rasnitsyn, 1990
(Neocomian of East Siberia, Berriasian of
England
and Barremian of
Spain
) and
Cretosyntexis
Rasnitsyn & Martínez-Delclòs, 2000
(Barremian of
Spain
) (see
Fig. 5
).
New diagnosis of
Syntexinae
.
Pedicel as long as scape (known only for
Syntexis
and
Eosyntexis parva
n. sp.
) (
Figs. 2G
and
4B
). Pronotum with dorsal face well developed and crossed by medial suture or impressed line (
Fig. 2C
). Mesonotum with distinct transverse rugae (known for
Syntexis
and
Cretosyntexis
, although in
E. parva
similar rugae are present on the pronotum) (
Figs. 2A, C
and
3E
). Fore wing with SC completely lost, 1r-rs either longer than 2r-rs or lost. Hind wing with r-m placed near RS bending and with m-cu lost (known only for
Syntexis
and
Eosyntexis senilis
).
Remarks
. The
Syntexinae
show an important simplification and reduction of the wing venation (
Fig. 1
): fore wing with SC completely lost, RS more or less straightened between cells 1mcu and 2r due to 1r-rs crossvein either long or lost, distal R and RS sometimes lost; hind wing when known with distal venation somewhat reduced, with r-m crossvein displaced basally and m-cu lost. Also the long pedicel, furrowed pronotum and mesonotum with marked sculpture distinguish
Syntexinae
from the three other subfamilies.