Selenothrips

Karny, 1911

red-banded thrips (for S. rubrocinctus)

Selenothrips is a of in the , established by Heinrich Hugo Karny in 1911. The genus contains at least two described : S. rubrocinctus (Giard, 1901), commonly known as the red- or cacao thrips, and S. glabratus Priesner, 1927. S. rubrocinctus is a pest with broad tropical and subtropical distribution, known to attack cacao, cashew, mango, avocado, and other . Research on this species has focused on its feeding in relation to water-stress and availability.

Selenothrips rubrocinctus Femelle by Mr Thrips (ThripsWiki). Used under a CC BY-SA 3.0 license.Selenothrips rubrocinctus Male and Female by Mr Thrips (ThripsWiki). Used under a CC BY-SA 3.0 license.Heliothrips rubrocinctus by United States. Bureau of Entomology; Pierce, W. Dwight.. Used under a Public domain license.

Pronunciation

How to pronounce Selenothrips: //sɛˈliːnoʊˌθrɪps//

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Identification

The Selenothrips belongs to the Panchaetothripinae. -level identification requires examination of morphological characters not detailed in available sources. S. rubrocinctus is distinguished by the red banding pattern referenced in its , though specific diagnostic features are not provided in the available literature.

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Habitat

Tropical and subtropical regions. Specific microhabitat requirements are not documented for the as a whole. S. rubrocinctus has been observed in cacao plantations, cashew orchards, mango groves, and urban ornamental settings on forest .

Distribution

Tropical and subtropical regions globally. Documented occurrences include: Asia (China, Taiwan, India, Malaya, Philippines); Africa (Congo, Fernando Po, Ghana, Ivory Coast, Nigeria, Principe, Republic of Congo, Sao Thomé, Sierra Leone, Tanzania, Uganda, Zanzibar); Australasia and Pacific Islands (Hawaii, Mariana Islands, New Caledonia, Papua New Guinea, Solomon Islands, Wallis Island); North America (USA); Central America and West Indies ( Rica, Honduras, Panama, West Indies); South America (Brazil, British Guiana, Ecuador, Peru, Surinam, Venezuela). First European field record from northern Italy (2021).

Host Associations

  • cacao - pestprimary for S. rubrocinctus
  • cashew - pestS. rubrocinctus peak during dry season on this in Trinidad
  • mango - pest association
  • avocado - pest association
  • guava - pest association
  • rose - laboratory S. rubrocinctus can be reared on rose leaflets in laboratory conditions
  • Liquidambar styraciflua - first European record from northern Italy
  • Carpinus betulus - first European record from northern Italy

Human Relevance

S. rubrocinctus is an agricultural pest of economic significance, particularly affecting cacao production. The has been the subject of extensive research on - interactions related to water-stress and nutrient availability. Laboratory rearing methods have been developed for biological study.

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Sources and further reading