-
Ypresiosirex is an
extinct genus of
sawfly in the
horntail family Siricidae. The
genus is
solely known from a
single Eocene fossil found in
North America...
- †Pararchexyela Rasnitsyn, 1968 †Proximoxeris Nel, 1991 †Urocerites Heer, 1867 †
Ypresiosirex Archibald & Rasnitsyn, 2015 "Sawflies & Wood Wasps". www.wlgf.org. Retrieved...
- found,
comparable in size to the
modern Apis dorsata. The
giant horntail Ypresiosirex orthosemos reached 67.9 mm (2.67 in) in
length including the incomplete...
-
Hymenoptera Proctotrupidae proctotrupid wasps Hymenoptera Siricidae †
Ypresiosirex orthosemos Archibald & Rasnitsyn, 2015
horntail wasps Hymenoptera Sphecidae...
-
described in
Archibald & Rasnitsyn's 2015 paper, the
other two
being Ypresiosirex orthosemos and
Cuspilongus cachecr****ensis, both from the
McAbee fossil...
- †Eourocerus †Eourocerus
anguliterreus Republic A
siricid horntail. †
Ypresiosirex †
Ypresiosirex orthosemos McAbee A
siricine siricid sawfly Tenthredinidae Eriocampa...
- Rasnitsyn's 2015 paper, the
other two
being Ulteramus republicensis and
Ypresiosirex orthosemos, from the Klon****
Mountain Formation and the
McAbee fossil...
- Ypresiomyrma.
Ypresiosirex Gen. et sp. nov
Valid Archibald &
Rasnitsyn Eocene (Ypresian) Canada A horntail. The type
species is
Ypresiosirex orthosemos...
