Scymnus quadrillum
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Scymnus quadrillum | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Coleoptera |
Family: | Coccinellidae |
Genus: | Scymnus |
Species: | S. quadrillum
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Binomial name | |
Scymnus quadrillum Motschulsky, 1858
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Scymnus (Pullus) quadrillum, is a species of lady beetle found in India, Bangladesh, Sri Lanka, Thailand, Taiwan, Nepal, Vietnam, Laos, China, and Pakistan.[1][2][3]
Description
Total length of adult is about 1.6 to 2.0 mm. Body glabrous and clothed with dense pubescence. Head brownish black and eyes are large. Pronotum and elytra are dark to blue and shiny. Scutellum is black. There are two reddish spots found on each elytron. Ventrum brownish black. Abdominal postcoxal process is bifurcated and postcoxal line is complete.[1]
Biology
It is a predator of wide range of whiteflies, mealybugs and aphids including: Aphis gossypii, Paracoccus marginatus and Pentalonia nigronervosa.[4][5][6][7][8]
References
- ^ a b Ali M, Perveen R, Naqvi AU, Ahmed K, Raza G, Hussain I (2015). "The tribe Scymnini (Coccinellidae: Coleoptera) from Sindh Province, Pakistan". Journal of Insect Science. 15: 146. doi:10.1093/jisesa/iev105. PMC 4664943. PMID 26454480.
- ^ "Scymnus quadrillum Motschulsky, 1858". www.gbif.org. Retrieved 2021-09-17.
- ^ Janakiraman P, Booth RG (2021-01-02). "Nomenclatural notes on three species of Scymnini (Coleoptera: Coccinellidae) from Ceylon". Oriental Insects. 55: 56–68. doi:10.1080/00305316.2020.1748134. S2CID 216248532.
- ^ Saengyot S, Burikam I (2011). "Host plants and natural enemies of papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) in Thailand" (PDF). Thai Journal of Agricultural Science. 44 (3): 197–205.
- ^ Agarwala BK, Ghosh AK (1988-01-01). "Prey records of aphidophagous Coccinellidae in India. A review and bibliography". Tropical Pest Management. 34: 1–14. doi:10.1080/09670878809371196.
- ^ Padmalatha C, Singh AR (1998). "Aphidophagus coccinellids on Pentalonia nigronervosa, a vector of bunchy top virus in the banana plants of southwest India". Tropical Ecology. 39 (2): 239–42.
- ^ Sarala Devi B. Studies on the feeding potential and food requirements of some aphidivorous insects (Ph.D. thesis). Division of Entomology, Agricultural College and Research Institute, Vellayani.
- ^ Ketipearachchi Y (2005). "Predominant natural enemies of insect pests in agroecosystems at Aralaganwila in the North Central Province of Sri Lanka" (PDF). SAARC Journal of Agriculture: 263–76.
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