Calamotropha atkinsoni Zeller
- Family: Crambidae
- Subfamily: Crambinae
- Genus: Calamotropha
- Distribution: Sri Lanka, India, Burma, Thailand, W. Malaysia, Singapore, Sarawak, Labuan, Philippines, Sulawesi.
- Habitat: Lowland, 10m
- Wing Length: males 6.5-12, females 11-14mm
Taxonomy
The holotype of Crambus atkinsoni Zeller, 1863b: 9 is from Calcutta.
- syn. Crambus holodryas Meyrick, 1933: 444. T.L. Thailand.
- syn. Calamotropha fuscicostella Snellen 1880: 247. The male lectotype selected by Munroe et al. (1958: 75), T.L. Sulawesi, Bonthain, is in Leiden. syn. n. (Bleszynski 1961: 196).
- syn. Calamotropha atkinsoni malaica Bleszynski, 1961e: 196, 197, pl. 32 fig. 50, pl. 63 fig. 189. T.L. Singapore. Infra specific.
There are two named sspp.:
- ssp. unlaica Bleszynski 1961e: 196, pl. 32, fig. 50. W. Malaysia, Singapore, Sarawak, & Labuan.
- ssp. atkinsoni Zeller, 1863b. Sri Lanka, India, Burma, Thailand, Philippines, Sulawesi.
Description
The FW is glossy, ochreous to chestnut-brown, darker on the subcosta. There is a black spot in the cell. The un-marked HW is shining white. Head, thorax and abdomen are also brown. Note the long labial and maxillary palpi. The males may be much smaller than the females.
Life History
Larva is a stem borer in reeds Actinoscirpus grossus (Cyperaceae),

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References
- Snellen, P.C.T., ([1880] 1880-1892). Achtse afdeeling. Lepidoptera door P.C.T. Snellen, met eene inleiding door Joh. F. Snelleman. In: Veth, P.J., (1880-1892). Natuurlijke Historie. Midden-Sumatra. 4 (8): 92 pp., 5 pl. Leiden. [in Dutch]
- Meyrick, E. ([1933]1930-1936), Exot. Microlepidopt. 4, 1-642, Privately published, [Taylor & Francis], London.
- Munroe, E.G., Diakonoff, A. & Martin, E.L. (1958) Catalogue of Snellen’s types of Pyralidae with selections of lectotypes. Tijdschr. v. Ent., 101 (2): 65-88.
- [RTS] Robinson, G.S., Tuck, K.R. & Shaffer, M. (1994) A Field Guide to the Smaller Moths of South-East Asia, Malaysian Nature Society Kuala Lumpur & Natural History Museum, London, 311 pp. 51 text figs, 32 pls.
- [RTS] (1994):163-4, pl.28, fig.6.
- Bleszynski, S. (1961e) Revision of the World species of the Family Crambidae (Lepidoptera). Part I. Genus Calamotropha Zell. Acta zool. cracov. 6 (7): 137-272, pls 20-71.
- Zeller, P.C. (1863b) Chilonidarum et Crambidarum genera et species. 1-56. Berolini (Wiegandt & Hempel).
- Bleszynski S., (1961a) Revision of the World species of the Family Crambidae (Lepidoptera). Part 1. Genus Calamotropha Zell. Acta zool. cracov, 6: 137-272.