Metron Godman 1900
Creators: name: Dolibaina, Diego Rodrigo
name: Mielke, Olaf Hermann Hendrik
name: Casagrande, Mirna Martins
name: Grishin, Nick V.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Hesperiidae
Metron

description: Key to species and subspecies of Metron
(Fig. 18)
1a. Labial palpus ventrally orange; ventral hindwing white spot at the base of the wing absent; ventral hindwing white area below vein 3A present....................................................................................... 2
1b. Labial palpus ventrally greenish; ventral hindwing white spot at the base of the wing absent; ventral hindwing white area below vein 3A absent....................................................................................... 3
1c. Labial palpus ventrally cream to yellowish; ventral hindwing white spot at the base of the wing present; ventral hindwing white area below vein 3A absent.............................................................................. 5
2a. Procoxae and ventral abdomen white; forewing discal cell white spot present; ventral forewing subapical large white patch present; center of the dorsal hindwing white; ventral hindwing crossed by a wide white band from base to outer margin; ventral hindwing proximal half of the anal fold white.................................................... mentor sp. nov.
2b. Procoxae and ventral abdomen orange; forewing discal cell white spot absent; ventral forewing subapical large white patch absent; center of the dorsal hindwing uniform dark brown to yellowish; ventral hindwing crossed by a cream band from the costal margin to CuA 2; ventral hindwing anal fold uniformly dark brown............................... chrysograstra
- Male dorsal forewing postdiscal spots CuA 1 –CuA 2 and CuA 2 –2A absent; ventral hindwing cream band narrow; abdomen ventrally orange, dark brown line present; female forewing subapical spots well-marked; forewing postdiscal semihyaline spot CuA 1 –CuA 2 wider than long; ventral abdomen orangish........................................... c. chrysograstra
- Male dorsal forewing postdiscal spots CuA 1 –CuA 2 and CuA 2 –2A shorter than wide; ventral hindwing cream band wide; abdomen ventrally orange, dark brown line absent; female forewing subapical spots well-marked; forewing postdiscal semihyaline spot CuA 1 –CuA 2 about as long as wide; ventral abdomen orangish............................................. c. gades
- Male dorsal forewing postdiscal spots CuA 1 –CuA 2 and CuA 2 –2A longer than wide; ventral hindwing cream band wide; abdomen ventrally yellowish, dark brown line absent; female forewing subapical spots reduced to absent; forewing postdiscal semihyaline spot CuA 1 –CuA 2 longer than wide; ventral abdomen yellowish to cream..................... c. hypodesma
3a. Male dorsal forewing spots absent; both sexes ventral hindwing whitish to cream band absent; female dorsal forewing spots opaque.......................................................................................... noctis
3b. Male dorsal forewing spots present; both sexes ventral hindwing whitish to cream band present (absent in some specimens of M. voramus); female dorsal forewing spots semihyaline....................................................... 4
4a. Male dorsal forewing spots orange; center of the dorsal hindwing orange; female forewing spots semihyaline....... voranus
4b. Male dorsal forewing spots yellow; center of the dorsal hindwing faint yellow; female unknown.............. hypochlora
- Male dorsal forewing spots reduced; hindwing fringe dark brown to cream; abdomen ventrally whitish....... h. hypochlora
- Male dorsal forewing spots well-developed; hindwing fringe yellowish; abdomen ventrally yellowish............ h. tomba
5a. Dorsal hindwing, distal margin of the yellow discal band curved; ventral hindwing white band never exceeds Sc+Rs anteriorly....................................................................................... fasciata
5b. Dorsal hindwing, distal margin of the yellow discal band angled; ventral hindwing white band reaches costal margin...... 6
6a. Ventral hindwing white spot at the base of the wing never exceeds vein Sc+Rs anteriorly; ventral hindwing white spot on lower distal discal cell present............................................................................ oropa
6b. Ventral hindwing white spot at the base of the wing exceeds vein Sc+Rs anteriorly; ventral hindwing white spot on lower distal discal cell absent................................................................................... zimra
description: Published as part of Dolibaina, Diego Rodrigo, Mielke, Olaf Hermann Hendrik, Casagrande, Mirna Martins & Grishin, Nick V., 2024, A new species of Metron Godman, 1900 (Lepidoptera, Hesperiidae) from the western Amazon, with a unique hindwing color pattern in Hesperiina, its phylogenetic placement, and an illustrated key for the genus, pp. 581-590 in Zootaxa 5448 (4) on pages 587-588, DOI: 10.11646/zootaxa.5448.4.9, http://zenodo.org/record/11232305