Acosmeryx sericeus

Acosmeryx sericeus is a moth of the family Sphingidae.[2] It was described by Francis Walker in 1856.

Acosmeryx sericeus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Sphingidae
Genus: Acosmeryx
Species:
A. sericeus
Binomial name
Acosmeryx sericeus
(Walker, 1856)[1]
Synonyms
  • Philampelus sericeus Walker, 1856
  • Acosmeryx anceoides Boisduval, 1875
  • Acosmeryx sericeus rufescens Mell, 1922

Distribution

Is known from Nepal, north-eastern India, Bangladesh, Thailand, southern China, Vietnam and Peninsular Malaysia.

Description

Wingspan: 96–106 mm. Forewing with outer margin dentate. Forewing upperside general background colour violaceous-grey, with the brown lines more prominent than in other species of the genus; first discal line well-marked, running straight from vein M3 to the hind margin, merging anteriorly with an oblique line that reaches the outer margin just anterior to the hind angle; a grey submarginal band ends at or just beyond vein M3. Hindwing upperside with an indistinct brown discal line, distal to which is an equally indistinct, slightly tawny, paler band. Hindwing underside with conspicuous white scaling at costal margins, between the lines. Metanotum chocolate-tawny at sides. Abdomen upperside with chestnut brown markings of tergites prominent. Underside of abdomen, most of hindwing. and the disc of forewing along the marginal band bright tawny. Antenna shorter in male than in Acosmeryx naga naga.

In the male genitalia, gnathos widest in middle. Harpe with process more rounded distally than in Acosmeryx naga naga, with the ventral ridge higher and not dentate. Aedeagus with left process broad.[3]

  • Male dorsal
  • Male ventral

Global distribution

These moths are largely found in parts of Nepal, northeastern India, Bangladesh, Thailand, southern China, Vietnam and Malaysia (Peninsular).[4]

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References
  1. "CATE Creating a Taxonomic eScience – Sphingidae". Cate-sphingidae.org. Archived from the original on 2012-11-08. Retrieved 2011-10-20.
  2. Markku Savela (2008-07-18). "Acosmeryx". Lepidoptera and some other life forms. Retrieved 2011-10-20.
  3. Pittaway, A. R.; Kitching, I. J. (2018). "Acosmeryx sericeus (Walker, 1856) -- Silky forest hawkmoth". Sphingidae of the Eastern Palaearctic. Retrieved December 18, 2018.
  4. "Acosmeryx sericeus (Walker, 1856". Sphingidae Taxonomic Inventory. Retrieved December 18, 2018.


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