Genus Myrmeleon Linnaeus, 1767

Myrmeleon Linnaeus, 1767: 913:

Type species: Myrmeleon formicarium Linnaeus, 1767: 914 . Subsequent designation by Latreille, 1810: 435.

Macroleon Banks, 1909: 4 . Type species: Myrmeleon validus McLachlan, 1894: 515 . Original designation.

Enza Navás, 1912b: 113 . Type species: Enza otiosus Navás, 1912b: 114 . Monotypy.

Myrmeleodes Navás, 1912c: 242 . Type species: Myrmeleodes medius Navás, 1912c: 243 . Monotypy.

Moreyus Navás, 1914b: 55 . Type species: Moreyus brasiliensis Navás, 1914b: 55 . Monotypy.

Morter Navás, 1915a: 466. Type species: Myrmeleon hyalinus Olivier, 1811: 126 . Original designation.

Neleon Navás, 1915b: 53 . Type species: Myrmeleon immaculatum De Geer, 1773: 564 . Original designation.

Neseurus Navás, 1916: 53 . Type species: Myrmeleon alternans Brullé in Webb & Berthelot, 1839: 83. Original designation.

Cocius Navás, 1919: 296 . Type species: Cocius angustatus Navás, 1919: 297 . Monotypy.

Leptoleon Esben-Petersen, 1918: 18 . Type species: Leptoleon regularis Esben-Petersen, 1918: 18 . Monotypy.

Myrmeleonellus Esben-Petersen, 1918: 17 . Type species: Myrmeleonellus pallidus Esben-Petersen, 1918: 18 . Monotypy.

Dicholeon Navás, 1920: 193 . Type species: Dicholeon nigritarsis Navás, 1920: 193 . Monotypy.

Tafanerus Navás, [1921] 1919: 62 . Type species: Tafanerus indicus Navás, [1921] 1919: 63 . Original designation.

Talosus Navás, 1923a: 35 . Type species: Talosus oberthuri Navás, 1923a: 35 . Monotypy.

Banya Navás, 1923b: 145 . Type species: Banya trifasciata Navás, 1923b: 145 . Monotypy.

Grocus Navás, 1925: 185 . Type species: Grocus gerstaeckeri Navás, 1925: 185 . Original designation.

Colinus Navás, 1925: 187 . Type species: Colinus philippinus Navás, 1925: 187 . Monotypy.

Afroleon Navás, 1927: 13 . Type species: Afroleon basutus Navás, 1927: 13 . Monotypy.

Neurocolinus Navás, 1930b: 42 . Type species: Colinus philippinus Navás, 1925: 187 . Monotypy.

Nemeyus Navás, 1934a: 502 . Type species: Nemeyus sanaanus Navás, 1934a: 503 . Monotypy.

Nezuela Navás, 1934b: 155 . Type species: Nezuela geayana Navás, 1934b: 156 . Monotypy.

Bordus Navás, 1936a: 165 . Type species: Bordus temeratus Navás, 1936a: 166 . Monotypy.

Congoleon Navás, 1936b: 337 . Type species: Congoleon sociatus Navás, 1936b: 337 . Monotypy.

Hypsoleon Navás, 1936c: 103 . Type species: Hypsoleon chappuisinus Navás, 1936c: 103 . Monotypy.

Nelneja Navás, 1936c: 104 . Type species: Nelneja guttata Navás, 1936c: 105 . Monotypy.

Diagnosis

Myrmeleon is similar to Baliga by the presence of anterior gonocoxites 8 relatively shorter than posterior gonocoxites 8 in the female genitalia (Fig. 9A–B) but can be distinguished by the absence of interconnected crossveins in the costal area of forewing (Fig. 7).

Key to species of the genus Myrmeleon from Pakistan *

1. Vertex wholly black, without yellow markings (Fig. 18C) ............................................................... 2

– Vertex black, distally with yellow markings in dorsal view (Fig. 8C) .............................................. 3

2. Clypeus yellow with two median rounded brownish markings; pronotum dark brown, medially with a narrow longitudinal complete yellow stripe, rounded in center, laterally with a narrow yellow stripe at proximal half (Hölzel 1972: fig. 97); male gonocoxite 9 arcuate at distal margin in ventral view (Hölzel 1972: fig. 101)................................................................. M. paghmanus Hölzel, 1972

– Clypeus yellow without distinct brownish markings (Fig. 18B); pronotum yellow, medially with two longitudinal dark brown stripes (Fig. 18C); male gonocoxite 9 pointed at distal margin in ventral view (Fig. 19E–G).............................................................................. M. trivialis Gerstaecker, 1885

3. Pronotum predominantly dark brown................................................................................................ 4

– Pronotum yellow, medially with two longitudinal dark brown stripes, separated by a narrow yellow line or yellow with a median longitudinal and lateral transverse dark brown stripe......................... 5

4. Pronotum dark brown, medially with two yellow stripes on anterior half at proximal to anterior transverse furrow, laterally with a narrow yellow stripe at proximal half (Iqbal & Yousuf 1992: fig. 1A)....................................................................................................... M. clothilde Banks, 1913

– Pronotum dark brown, medially with a narrow longitudinal yellow stripe at proximal half and two rounded yellow markings at distal half, laterally with a narrow yellow stripe at proximal ⅔ (Aspöck et al. 1980: fig. 820; Hajiesmaeilian et al. 2020: fig. 12)................ M. inconspicuus Rambur, 1842

5. Pronotum yellow, medially with two longitudinal dark brown stripes, narrowly separated by central yellow line (Fig. 8A).......................................................................................................................... 6

– Pronotum yellow, medially with a longitudinal dark brown stripe, anterior transverse furrow with medially dark brown stripe, distal margin with two transverse dark brown stripes (Fig. 14C) .......... ................................................................................................... M. hyalinus hyalinus Olivier, 1811

6. Vertex black, posteromedially with a pair of longitudinal yellow markings (Fig. 8C) ....................... ........................................................................................................... M. tenuipennis Rambur, 1842

– Vertex black, posteriorly with four yellow markings, two at medially and two at lateral margins (Ghosh 1984: fig. 38; Iqbal & Yousuf 1992: fig. 2A) ............................ M. assamensis Ghosh, 1984

* excluding Myrmeleon bore and M. noacki .