Udaspes folus  (Cramer, 1775)

Grass Demon
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Class: Insecta
Order: Lepidoptera
Superfamily: Papilionoidea
Family: Hesperiidae
Subfamily: Hesperiinae
​Genus: Udaspes
Species: folus

  • Common name: Grass Demon
  • Thai name: ผีเสื้อพญาทุ่งหญ้า
  • Distribution: Sri Lanka, S. India, Nepal to Myanmar, Thailand, Laos, Vietnam, Hainan, China, Taiwan, Japan, Langkawi, W. Malaysia, Singapore, Sumatra, Bangka, Java, Engano, Bawean, Lombok, Sumbawa.
  • Image locations: Chaiyaphum (Nam Tok Tad Fa), Nakhon Si Thammarat
  • Additional notes: 
Udaspes folus image location map.jpg
Image locations
Images of Udaspes folus from Thailand.
Udaspes folus.jpg
Udaspes folus (Cramer,1775) male Nam Tok Tad Fa Chaiyaphum July
Grass Demon.jpg
Udaspes folus (Cramer,1775) male Nam Tok Tad Fa Chaiyaphum July
Udaspes folus male.jpg
Udaspes folus (Cramer,1775) male Nam Tok Tad Fa Chaiyaphum July
Udaspes folus.jpg
Udaspes folus (Cramer,1775) Phu Laen Kha N.P. Chaiyaphum November
Udaspes folus female.jpg
Udaspes folus (Cramer,1775) male Chaiyaphum
Udaspes folus female.jpg
Udaspes folus (Cramer,1775) female Nam Tok Tad Fa Chaiyaphum July
Udaspes folus, Grass Demon from Thailand.jpg
Udaspes folus (Cramer, 1775) Nakhon Si Thammarat
References: 
​A Check List of Butterflies in Indo-China, Chiefly from THAILAND, LAOS & VIETNAM - Y.Inayoshi.
​Wingscales