Below is a checklist of the extant British Isles Lacewings and Allies. For a synonymic checklist click here.
Currently there are:
Neuroptera (Lacewings): 6 families, 25 genera, and 72 species
Raphidioptera (Snakeflies): 1 family, 4 genera, and 4 species
Megaloptera (Alderflies): 1 family, 1 genus, and 3 species
Mecoptera (Scorpionflies and Snow Fleas): 2 families, 2 genera, and 4 species
If you want to jump to a specific family click on the order or family name:
Neuroptera: Coniopterygidae, Chrysopidae, Osmylidae, Sisyridae, Myrmeleontidae, Hemerobiidae
Mecoptera: Boreidae, Panorpidae
NEUROPTERA Linnaeus, 1758
CONIOPTERYGIDAE Burmeister, 1839
Coniopteryginae Burmeister, 1839
Conwentzia Enderlein, 1905
Conwentzia pineticola Enderlein, 1905
Conwentzia psociformis (Curtis, 1834)
Coniopteryx Curtis, 1834
Subgenus Coniopteryx Curtis, 1834
Coniopteryx borealis Tjeder, 1930
Coniopteryx tineiformis Curtis, 1834
Coniopteryx pygmaea Enderlein, 1906
Subgenus Metaconiopteryx Kis, Nadler & Mandru, 1979
Coniopteryx esbenpeterseni Tjeder, 1930
Coniopteryx lentiae Aspöck & Aspöck, 1964
Semidalis Enderlein, 1905
Semidalis aleyrodiformis (Stephens, 1836)
Semidalis pseudouncinata Meinander, 1963
Parasemidalis Enderlein, 1905
Parasemidalis fuscipennis (Reuter, 1894)
Aleuropteryginae Enderlein, 1905
Aleuropteryx Enderlein, 1905
Aleuropteryx juniperi Ohm, 1968
Helicoconis Enderlein, 1905
Helicoconis hirtinervis Tjeder, 1960
CHRYSOPIDAE Schneider, 1851
Chrysopinae Schneider, 1851
Chrysopa Leach, 1815
Chrysopa abbreviata Curtis 1834
Chrysopa commata Kis & Újhelyi, 1965
Chrysopa dorsalis Burmeister, 1839
Chrysopa pallens (Rambur, 1838)
Chrysopa perla (Linnaeus, 1758)
Chrysopa phyllochoma Wesmael, 1841
Chrysoperla Steinmann, 1964
Chrysoperla carnea (Stephens, 1836)
Chrysoperla lucasina (Lacroix, 1912)
Chrysoperla pallida Henry, Brooks, Duelli, & Johnson, 2002
Chrysopidia Navás, 1910
Chrysopidia ciliata (Wesmael, 1842)
Cunctochrysa Hölzel, 1970
Cunctochrysa albolineata (Killington, 1935)
Cunctochrysa cosmia (Navás, 1918)
Apertochrysa Tjeder, 1966
Apertochrysa flavifrons (Brauer, 1850)
Apertochrysa prasina (Burmeister, 1839)
Apertochrysa ventralis (Curtis, 1834)
Nineta Navás, 1912
Nineta flava (Scopoli, 1793)
Nineta vittata (Wesmael, 1841)
Nineta inpunctata (Reuter, 1894)
Nineta pallida (Schneider, 1846)
Peyerimhoffina Lacroix, 1920
Peyerimhoffina gracilis (Schneider, 1851)
Nothochrysinae Navás, 1910
Nothochrysa McLachlan, 1868
Nothochrysa capitata (Fabricius, 1793)
Nothochrysa fulviceps (Stephens, 1836)
OSMYLIDAE Leach, 1815
Osmylus Latreille, 1802
Osmylus fulvicephalus (Scopoli, 1793)
SISYRIDAE Handlirsch, 1908
Sisyra Burmeister, 1839
Sisyra dalii McLachlan, 1866
Sisyra nigra (Retizus, 1783)
Sisyra terminalis Curtis, 1854
MYRMELEONTIDAE Latreille, 1803
Myrmelontinae Latreille, 1803
Euroleon Esben-Petersen, 1918
Euroleon nostras (Fourcroy, 1785)
Myrmeleon Linnaeus, 1767
Myrmeleon formicarius Linnaeus, 1767
HEMEROBIIDAE Latreille, 1802
Psectra Hagen, 1866
Psectra diptera (Burmeister, 1839)
Micromus Rambur, 1842
Micromus variegatus (Fabricius, 1793)
Micromus angulatus (Stephens, 1836)
Micromus paganus (Linnaeus, 1767)
Drepanepteryx Leach, 1815
Drepanepteryx phalaenoides (Linnaeus, 1758)
Hemerobius Linnaeus, 1758
Hemerobius humulinus Linnaeus, 1761
Hemerobius perelegans Stephens, 1836
Hemerobius simulans Walker, 1853
Hemerobius stigma Stephens, 1836
Hemerobius atrifrons McLachlan, 1868
Hemerobius pini Stephens, 1836
Hemerobius contumax Tjeder, 1932
Hemerobius striatus Nakahara, 1915
Hemerobius nitidulus Fabricius, 1777
Hemerobius micans Olivier, 1792
Hemerobius lutescens Fabricius, 1793
Hemerobius marginatus Stephens, 1836
Hemerobius handschini Tjeder, 1957
Wesmaelius Krüger, 1922
Subgenus Kimminsia Killington, 1937
Wesmaelius malladai (Navás, 1925)
Wesmaelius mortoni (McLachlan, 1899)
Wesmaelius ravus (Withycombe, 1923)
Wesmaelius balticus (Strøm, 1788)
Wesmaelius nervosus (Fabricius, 1793)
Wesmaelius subnebulosus (Stephens, 1836)
Subgenus Wesmaelius Krüger, 1922
Wesmaelius concinnus (Stephens, 1836)
Wesmaelius quadrifasciatus (Reuter, 1894)
Sympherobius Banks, 1904
Sympherobius elegans (Stephens, 1836)
Sympherobius pygmaeus (Rambur, 1842)
Sympherobius pellucidus (Walker, 1853)
Sympherobius fuscescens (Wallengren, 1863)
Sympherobius klapaleki Zelený, 1963
Megalomus Rambur, 1842
Megalomus hirtus (Linnaeus, 1761)
RAPHIDIOPTERA Handlirsch, 1908
RAPHIDIIDAE Latreille, 1810
Subilla Navás, 1916
Subilla confinis (Stephens, 1836)
Xanthostigma Navás, 1909
Xanthostigma xanthostigma (Schummel, 1832)
Atlantoraphidia Aspöck & Aspöck, 1968
Atlantoraphidia maculicollis (Stephens, 1836)
Phaeostigma Navás, 1909
Phaeostigma notata (Fabricius, 1781)
MEGALOPTERA Latreille, 1802
SIALIDAE Leach, 1815
Sialis Latreille, 1803
Sialis fuliginosa F.J. Pictet, 1836
Sialis lutaria (Linnaeus, 1758)
Sialis nigripes A.E. Pictet, 1865
MECOPTERA Packard, 1886
BOREIDAE McLachlan 1868
Boreus Latreille, 1825
Boreus hyemalis (Linnaeus, 1767)
PANORPIDAE Leach, 1815
Panorpa Linnaeus, 1758
Panorpa cognata Rambur, 1842
Panorpa communis Linnaeus, 1758
Panorpa germanica Linnaeus, 1758