Myrmeleon Linnaeus, 1767

Hassan, Muhammad Asghar, Zheng, Yuchen & Liu, Xingyue, 2022, Taxonomic notes on the antlion tribe Myrmeleontini Latreille (Neuroptera, Myrmeleontidae, Myrmeleontinae) from Pakistan, with description of a new species, European Journal of Taxonomy 831, pp. 1-44 : 12-13

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 .

Figures

Fig. 9. Myrmeleon tenuipennis Rambur, 1842. A. Female genitalia, lateral view. B. Same, ventral view. C. Male genitalia, lateral view. D. Same, ventral view. E. Complex of gonocoxites 9 + gonocoxites 11, dorsal view. F. Same, ventral view. G. Same, lateral view. A–B: ♀ (CAUPK000011); C–G: ♂ (CAUPK000010). Abbreviations: ag8 = anterior gonocoxites 8; ect = ectoproct; gst11 = gonostylus 11; gx9 = gonocoxites 9; gx11 = gonocoxites 11; pg8 = posterior gonocoxites 8; pp = pregenital plate; S = sternites; T = tergites. Scale bars = 0.5 mm.

Fig. 7. Myrmeleon tenuipennis Rambur, 1842. Right fore- and hind wing. A. Male (CAUPK000010). B. Female (CAUPK000011). Scale bars = 2.0 mm.

Fig. 18. Myrmeleon trivialis Gerstaecker, 1885 (CAUPK000025). A. Dorsal habitus of head and thorax. B. Head, frontal view. C. Head and pronotum, dorsal view. D. Antenna. E. Habitus, lateral view. Scale bars: A = 2.0 mm; B–D = 1.0 mm; E = 3.0 mm.

Fig. 8. Myrmeleon tenuipennis Rambur, 1842. A. Dorsal habitus of head and thorax. B. Head, frontal view. C. Head and pronotum, dorsal view. D. Antenna. E. Lateral view. A–B, D–E: ♂ (CAUPK000010); C: ♀ (CAUPK000011). Scale bars: A = 2.0 mm; B–D = 1.0 mm; E = 3.0 mm.

Fig. 19. Myrmeleon trivialis Gerstaecker, 1885. A. Female genitalia, lateral view. B. Same, ventral view. C. Male genitalia, lateral view. D. Same, ventral view. E. Complex of gonocoxites 9 + gonocoxites 11, dorsal view. F. Same, ventral view. G. Same, lateral view. A–B: ♀ (CAUPK000026); C–G: ♂ (CAUPK000025). Abbreviations: ag8 = anterior gonocoxites 8; ect = ectoproct; gst11 = gonostylus 11; gx9 = gonocoxites 9; gx11 = gonocoxites 11; pg8 = posterior gonocoxites 8; pp = pregenital plate; S = sternites; T = tergites. Scale bars = 0.5 mm.

Fig. 14. Myrmeleon hyalinus hyalinus Olivier, 1811 (CAUPK000024). A. Dorsal habitus of head and thorax. B. Head, frontal view. C. Head and pronotum, dorsal view. D. Antenna. E. Lateral view. Scale bars: A = 2.0 mm; B–D = 1.0 mm; E = 3.0 mm.