Nemoleontini, Banks, 1911

Stange, Lionel A. & Miller, Robert B., 2018, A revision of the genus Navasoleon Banks (Neuroptera: Myrmeleontidae: Nemoleontini), Insecta Mundi 619, pp. 1-25 : 17

Key to genera of New World Nemoleontini with pretarsal claws that close upon the distal tarsomere

1. Antennal fossa separated from ocular rim by more than greatest width of pedicel; mid leg shorter than foreleg which is shorter than hindleg; midtibia usually swollen much broader than hind tibia; subcostal area narrowed at origin of cubital fork to less than diameter of radial vein (except Dimarella riparia ) (Subtribe Dimarellina ).................................. 2

— Antennal fossa separated from ocular rim by less than greatest width of pedicel; midleg as long as or longer than foreleg or foreleg longer than hindleg; midtibia not swollen broader than hindtibia (except few species of Purenleon Stange and Navasoleon tarsalis ( Fig. 26 ); subcostal area not narrowed to less than diameter of radial vein (Subtribe Nemoleontina )......... 3

2. Tibial spurs present on all legs; posterior fork of vein CuA and CuP + 1A parallel with each other and hind margin for long distance; male ectoproct with elongate postventral lobe........................................................ Dimarella Banks

— Tibial spurs absent at least on midleg and hindleg; posterior fork of vein CuA runs obliquely to hind margin; male ectoproct without postventral lobe ( Brazil)......... Brasileon Stange

3. Tibial spurs absent............................................. Navasoleon Banks — Tibial spurs present............................................................. 4

4. Tibiae with long setae, more than four times longer than diameter of tibia; foretibial spurs longer than basal three tarsomeres; hindfemur with sense hair; distal tarsomere somewhat flattened dorsoventrally with setal brush lacking along midline ( Chile; coastal Peru).............................................. Sericoleon Esben-Petersen

— Tibiae with short setae, longest less than twice as long as tibial diameter; foretibial spurs shorter than basal two tarsomeres; hindfemur without sense hair; distal tarsomere not flattened and with setae on midline ( Argentina)............................................... 5

5. Setal brush on distal tarsomere usually with apically hooked setae; hindleg tarsomere 2 usually over 4 × longer than wide, sometimes as long as basitarsus; female terminalia with posterior gonapophysis produced thumb-like; ectoproct without digging setae...... Elachyleon Esben-Petersen

— Setal brush on distal tarsomere without hooked setae; hindleg tarsomere 2 at most 2.5 × longer than wide; female terminalia with posterior gonapophysis produced finger-like; ectoproct with short digging setae............................................... Rovira Navás

Figures

Figures 19–27. Lateral view, thorax, of Navasoleon spp. 19) Navasoleon amazonas. 20) Navasoleon bolivianus. 21) Navasoleon brasiliensis. 22) Navasoleon egeri. 23) Navasoleon leptocerus. 24) Navasoleon lithophilus. 25) Navasoleon lotti. 26) Navasoleon tarsalis 27) Navasoleon venezolanus.