Striglina scitaria

Striglina scitaria, the daincha leaf webber,[1] is a species of moth of the family Thyrididae described by Francis Walker in 1862. It is found in Taiwan, Japan, India, Sri Lanka, Maldives, Myanmar, the Andamans, Borneo, New Guinea, Fiji and Australia. It is a major pest which mainly attacks legume crops.[2]

Daincha leaf webber
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Thyrididae
Genus:
Striglina
Species:
S. scitaria
Binomial name
Striglina scitaria
(Walker, 1862)
Synonyms
  • Drepanodes scitaria Walker, 1862
  • Strigulina scitaria
  • Homodes thermesioides Snellen, 1877

Description

Its wingspan is about 3 cm. Adults are reddish ocherous with wings evenly striated with brown. An oblique reddish-brown line runs from apex of the forewing to the inner margin of hindwing before the middle. Ventral side is with a dark spot at end of cell of forewing. The oblique line coming out as black streaks ventrally. In some subspecies, there is a line on the hindwing from the same point on costa as the oblique line and curved to inner margin above anal angle or oblique to outer margin before anal angle. Larva are olive colored. First somite ocherous and head is black. There are few short distal hairs and series of transverse black dots from second to terminal somite.[3]

Ecology

The larvae feed on Sesbania bispinosa, Cassia corymbosa, Notonia grandiflora, Cassia fistula, Albizia procera, Derris elliptica, Combretum indicmu, Bauhinia racemosa, Kleinia grandiflora and Quisqualis indica.[4] Young larvae twist the terminal portion of a leaflet to form a small cone. During growth, the larva webs together several leaflets, creating a tunnel in which it lives and pupates.[5][6][7]

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References
  1. "Striglina scitaria". gbif. Retrieved 17 July 2016.
  2. "Striglina scitaria (Walker)". ICAR-National Bureau of Agricultural Insect Resources. Retrieved 17 July 2016.
  3. Hampson, G. F. (1892). The Fauna of British India, Including Ceylon and Burma: Moths Volume I. Moths - Vol. I. Taylor and Francis – via Biodiversity Heritage Library.
  4. "Striglina scitaria (Walker, 1862)". Butterfly House. Retrieved 17 July 2016.
  5. General and applied entomology
  6. "Caterpillars of Striglina scitaria roll leaves to provide protection by use of contractile silk threads". The Biomimicry Institute. Retrieved 17 July 2016.
  7. "Striglina scitaria (Walker)". ICAR-National Bureau of Agricultural Insect Resources. Retrieved 17 July 2016.


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