Biology:Scymnus quadrillum
| Scymnus quadrillum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Infraorder: | Cucujiformia |
| Family: | Coccinellidae |
| Genus: | Scymnus |
| Species: | S. quadrillum
|
| Binomial name | |
| Scymnus quadrillum Motschulsky, 1858
| |
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
The total length of an adult scymnus quadrillum is about 1.6 to 2.0 mm. The body appears glabrous and clothed with dense pubescence. The head is brownish black and the eyes are comparably large. The pronotum and the elytra are dark to blue and shiny. The scutellum is black. There are two reddish spots found on each elytron, and the ventrum is brownish black. The abdominal postcoxal process is bifurcated and the 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
- ↑ 1.0 1.1 "The tribe Scymnini (Coccinellidae: Coleoptera) from Sindh Province, Pakistan". Journal of Insect Science 15: 146. 2015. doi:10.1093/jisesa/iev105. PMID 26454480.
- ↑ (in en) Scymnus quadrillum Motschulsky, 1858. https://www.gbif.org/species/9424294. Retrieved 2021-09-17.
- ↑ "Nomenclatural notes on three species of Scymnini (Coleoptera: Coccinellidae) from Ceylon". Oriental Insects 55: 56–68. 2021-01-02. doi:10.1080/00305316.2020.1748134.
- ↑ "Host plants and natural enemies of papaya mealybug, Paracoccus marginatus (Hemiptera: Pseudococcidae) in Thailand.". Thai Journal of Agricultural Science 44 (3): 197–205. 2011. https://mju-bctlc.mju.ac.th/article/HostPlants-SaengyBu2011/HostPlants-SaengyBu2011.pdf.
- ↑ "Prey records of aphidophagous Coccinellidae in India. A review and bibliography". Tropical Pest Management 34: 1–14. 1988-01-01. doi:10.1080/09670878809371196.
- ↑ "Aphidophagus coccinellids on Pentalonia nigronervosa, a vector of bunchy top virus in the banana plants of southwest India.". Tropical Ecology 39 (2): 239–42. 1998. https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1357003.
- ↑ 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.
- ↑ "Predominant natural enemies of insect pests in agroecosystems at Aralaganwila in the North Central Province of Sri Lanka.". SAARC Journal of Agriculture: 263–76. 2005. https://www.cabi.org/isc/FullTextPDF/2010/20103304681.pdf.
Wikidata ☰ Q108575929 entry
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