Anatrachyntis rileyi
| Anatrachyntis rileyi | ||||||||||||
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| Anatrachyntis rileyi | ||||||||||||
| ( Walsingham , 1882) |
Anatrachyntis rileyi is a butterfly ( moth ) from the family of cosmopterigidae (Cosmopterigidae).
features
The moths reach a wingspan of 9 to 11 millimeters. The head is pale reddish brown and slightly darker on the sides. The antennae are black-brown and ringed white in the distal half. In the apical area there are three dark brown sections, each consisting of five segments and each separated by a white segment. The labial palps are white. The second segment has white bands on the outside and in the middle and a gray-brown spot in the middle. The third segment has dark brown subbasal, medial, and subapical rings. Thorax and tegulae are reddish brown. The forewings are reddish brown and mixed brown in the costal half. An indistinct and very irregular ocher band is 1/4 the length of the fore wing. At the Costa loader it is extended towards the base and lined with black-brown inside. The second band in front of the middle of the wing does not extend to the Costa loader and the inner edge of the wing. It is speckled with blackish brown. A dark gray-brown subcostal line runs from the second band to the outer edge of the wing. A narrow, elongated, ocher-colored line extends from the inner corner into the dorsal fringed scales. At the apex there is a black-brown spot, to which an ocher-colored costal spot borders on the inside. A narrow, black-brown line runs above the apical spot on the fringed scales, two more are below. The fringed scales are reddish brown and black-brown at the apex. They turn ocher in the direction of the inner edge of the wing. The hind wings are dark gray and have an ocher colored line at the base. The fringed scales are ocher in color. The first three segments of the abdomen are dorsally ocher, the remaining segments are pale yellowish gray.
In the male, the right brachium is almost straight and tapering to a point. The left brachium is short and thick. The blades are spatulate and narrow at the base. The upper edge is concave in the basal half and straight at the lower edge. The apex is rounded.
The females have a cylindrical sterigma , which is rounded at the back. It protrudes slightly from the fold between the 7th and 8th sternite . The ductus bursae is shorter than the corpus bursae .
The adult caterpillars reach a length of 7 to 8 millimeters. They are cylindrical and deeply burgundy in color. The head is light brown, the eating tools are blackish. The brown thoracic shield is broad, undivided and heavily chitinized. The anal plate is light brown. The tubercles are small and whitish. They are provided with long, light brown hair. Because of the conspicuous coloring of the caterpillars, the species is called "pink cornworm", "pink bud moth" or "pink scavenger caterpillar" in the English-speaking world.
The pupa is 7 to 8 millimeters long and yellowish brown in color.
distribution
Anatrachyntis rileyi is native to the Canary Islands , Japan , Thailand , North America , the Galapagos Islands , northern Australia and Hawaii . The species is widespread in the southern United States .
biology
The caterpillars usually develop on dead plant material. They were found on rotting cotton bolls, among other things . They also feed on seeds and dried fruits (cottonseed, maize ( Zea mays ), sorghum ( Sorghum ), maize stalks and pods, in the flowers of the miracle tree ( Ricinus communis )). Occasionally, the caterpillars also appear as leaf miners on aloes ( aloe ) and Rochea species. They pupate in a whitish cocoon at the feeding place. The puppet rest lasts 11 to 13 days. The moths can be detected almost all year round. The species forms three generations per year. The last generation hibernates. There is probably no diapause in the tropics .
Parasitoids
Anatrachyntis rileyi is different braconids species ( Agathis hawaii cola , Apanteles ), Platt wasp species ( Perisierola emigrata , Pristomerus hawaiiensis ) and parasitic wasps species ( Trathala flavoorbitalis , Idechthis - not to be confused with the cutworm genus Idechthis Hübner, 1821, which is a synonym of Ascalapha Hübner, representing 1909) parasitized.
Predators
Anatrachyntis rileyi belongs to the prey spectrum of long- antennae terrors ( Conocephalus saltator ) and wasps ( Pachodynerus nasidens , Polistes aurifer , Polistes olivaceus ).
Systematics
The following synonyms are known from the literature:
- Batrachedra rileyi Walsingham , 1882
- Batrachedra stigmatophora Walsingham , 1897
- Pyroderces rileyi ( Walsingham )
- Sathrobrota rileyi ( Walsingham )
- Pyroderces stigmatophora ( Walsingham )
- Anatrachyntis stigmatophora ( Walsingham )
supporting documents
- ↑ a b c d e f g J. C. Koster, S. Yu. Sinev: Momphidae, Batrachedridae, Stathmopodidae, Agonoxenidae, Cosmopterigidae, Chrysopeleiidae . In: P. Huemer, O. Karsholt, L. Lyneborg (eds.): Microlepidoptera of Europe . 1st edition. tape 5 . Apollo Books, Stenstrup 2003, ISBN 87-88757-66-8 , pp. 129 (English).
- ↑ a b c d e f g Elwood C. Zimmerman: Insects of Hawaii. Volume 9. Microlepidoptera. Part III. Gelechioidea. University Press of Hawaii, Honolulu 1978, 1044
- ↑ a b Anatrachyntis rileyi at Fauna Europaea. Retrieved January 24, 2012
- ↑ Ikenaga Hiroshi, Yasuda Koji, Hirano Koji et al. (2000): Seasonal Prevalence of Pink Scavenger Caterpillar, Anatrachyntis rileyi (Walsingham) (Lepidoptera: Cosmopterigidae) in Rice and Feed Mills. Japanese Journal of Applied Entomology and Zoology 44 (4), pages 229–234 ( Abstract ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. )
- ↑ O. Saito (1992): A new record of pink cornworm, Anatrachyntis rileyi Walsingham Lepidoptera, Cosmopterigidae, a pest of corn, from Thailand, with some ecological notes. Japanese Journal of Entomology 60 (2), pp. 463-464
- ↑ a b Pyroderces rileyi (Walsingham, 1882). Don Herbison-Evans, Stella Crossley, accessed January 25, 2012 .
