Amblyscirtes aenus megamacula
Amblyscirtes aenus megamacula is a of grass skipper in the Hesperiidae. The broader A. aenus, known as the Bronze Roadside-Skipper, ranges across parts of the southwestern United States and Mexico. The subspecies megamacula is distinguished by larger wing spots compared to the nominate subspecies. Like other members of the , it inhabits grassland and open where larval grasses occur.
Pronunciation
How to pronounce Amblyscirtes aenus megamacula: //ˌæmbliˈskɜːrtiːz ˈiːnəs ˌmɛɡəˈmækjʊlə//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from other Amblyscirtes by the combination of larger pale spots on the forewings (the basis for the name megamacula, meaning 'large spot') and overall bronze-brown coloration. Males have a distinctive forewing stigma. The subspecies megamacula differs from nominate A. aenus in having more prominent and enlarged pale macules on the forewing surface.
Habitat
Grasslands, prairies, open woodland edges, and roadside areas with native grasses. Associated with sandy or well-drained soils where grasses grow.
Distribution
The megamacula occurs in parts of the southwestern United States, including Texas, New Mexico, and adjacent areas. The broader A. aenus ranges from the southwestern United States south through Mexico.
Diet
Larvae feed on grasses (Poaceae), though specific grass records for this are not documented.
Life Cycle
Multiple per year where climate permits; overwinters as pupa or larva.
Behavior
Males perch on low vegetation in open areas, especially in early morning hours, to await females. are rapid, low-flying skippers typical of the .
Ecological Role
may visit flowers for nectar; larvae are herbivores on grasses.
Similar Taxa
- Amblyscirtes aenus aenusNominate with smaller, less prominent forewing spots.
- Amblyscirtes nysaSimilar roadside-skipper and , but differs in wing pattern details and geographic range.
- Amblyscirtes celiaOverlapping range and ; distinguished by wing pattern and male genitalia.