Distoleon Banks, 1910

Hassan, Muhammad Asghar, Zheng, Yuchen & Liu, Xingyue, 2020, Taxonomic notes on the antlion genus Distoleon Banks (Neuroptera: Myrmeleontidae) from Pakistan, Zootaxa 4869 (3), pp. 347-368 : 348

Genus Distoleon Banks, 1910

Distoleon Banks, 1910: 42 . Type species: Distoleon verticalis Banks, 1910: 42 (original designation).

Formicaleon Banks, 1911: 16 . Type species: Myrmeleon tetragrammicum Fabricius, 1798: 205 (a new name for Formicaleo Leach, 1815 by Banks, 1911: 16). Synonymized by Banks, 1916: 210.

Salvaza Navás, 1917: 12 . Type species: Salvaza cornutus Navás, 1917: 12 (monotypy). Synonymized by Stange, 2004: 148.

Eidoleon Esben-Petersen, 1918: 15 . Type species: Myrmeleon bistrigatus Rambur, 1842: 391 (original designation). Synonymized by Markl, 1954: 237.

Feinerus Navás, 1919: 190 . Type species: Feinerus umbratus Navás, 1919: 191 (monotypy). Synonymized by Stange, 2004: 148.

Nefeirus Navás, 1926: 103 . Type species: Nefeirus maesi Navás, 1926: 104 (monotypy). Synonymized by Stange, 2004: 148.

Dolicholeon Navás, 1929: 190 . Type species: Formicaleo substigmalis Navás, 1917: 10 (original designation). Synonymized by Stange, 2004: 148.

Hyloleon Navás, 1929: 188 . Type species: Hyloleon rhodocerus Navás, 1929: 189 (original designation). Synonymized by Banks, 1939: 463.

Nasma Navás, 1930: 409 . Type species: Nasma coreana Navás, 1930: 410 (monotypy). Synonymized by Aspöck et al., 2001: 285.

Feina Navás, 1931: 263 . Type species: Feina languida Navás, 1931: 264 (monotypy). Synonymized by Stange, 2004: 148.

Vessa Navás, 1931: 265 . Type species: Vessa guttata Navás, 1931: 266 (monotypy). Synonymized by Stange, 2004: 148.

Formileo Navás, 1933: 312 . Type species: Formileo collartinus Navás, 1933: 312 (monotypy). Synonymized by Stange, 2004: 148.

Nima Navás, 1935: 53 . Type species: Nima somalica Navás, 1935: 54 (monotypy). Synonymized by Stange, 2004: 148.

Diagnosis. Distoleon is readily separated from the other genera of Nemoleontini by the presence of only one presectoral crossvein in hind wing, with forks of CuA divergent and CuP+1A not parallel to the anterior but to the posterior branch of CuA only and that even for a short distance in forewing. The femoral sensory hair is longer than the femur, and the tibial spurs that are always curved and longer than first two tarsal segments taken together ( Stange 2004; Kaur et al. 2019).