Scymnus coccivora explained

Scymnus (Pullus) coccivora, is a species of lady beetle found in India, Bangladesh, Sri Lanka, Malaysia, and Pakistan and probably in Thailand, Bermuda, British Virgin Islands, Grenada, Saint Kitts and Nevis, Trinidad and Tobago and Papua New Guinea.[1] [2]

Description

Total length of adult is about 1.70 to 1.90 mm. It is a small ladybird with an elongate oval and moderately convex body. Dorsal surface clothed with dense pubescence. Body color ranges from pale golden yellow to yellowish brown. Eyes are small. Maculae on elytra is purple brown. Elytra has an hourglass shaped longitudinal marking which is found in the basal half. There are two small circular discal spots found on the posterior half of elytra. Antennae with 11 antennomeres. Abdominal postcoxal line is semi circular and complete.[3]

Biology

It is a predator of wide range of whiteflies, mealybugs and aphids including: Planococcus citri, Maconellicoccus hirsutus, Ferrisia virgata, Icerya aegyptiaca, Phenacoccus solenopsis, Pulvinaria psidii, Aphis craccivora, Brevicoryne brassicae, Lipaphis erysimi, Myzus persicae, Aphis gossypii, Hyadaphis coriandri, Hysteroneura setariae, Ropalosiphum maidis, Therioaphis trifolii, Macrosiphum granarium, Schizaphis graminum, Drosicha mangiferae, Tetranychus atlanticus and Rastrococcus iceryoides.[4]

Adults can be controlled by applying the systemic insecticide thiamethoxam.[5]

Notes and References

  1. Web site: Scymnus coccivora . 2021-09-17 . www.cabi.org.
  2. Ali M, Perveen R, Naqvi AU, Ahmed K, Raza G, Hussain I . The tribe Scymnini (Coccinellidae: Coleoptera) from Sindh Province, Pakistan . Journal of Insect Science . 15 . 146 . 2015 . 26454480 . 4664943 . 10.1093/jisesa/iev105 .
  3. Web site: Scymnus coccivora Ayyar, 1925 . 2021-09-17 . www.gbif.org . en.
  4. Kumari S, Suroshe SS, Kumar D, Budhlakoti N, Yana V . Foraging behaviour of Scymnus coccivora Ayyar against cotton mealybug Phenacoccus solenopsis Tinsley . Saudi Journal of Biological Sciences . 28 . 7 . 3799–3805 . July 2021 . 34220234 . 8241695 . 10.1016/j.sjbs.2021.03.051 .
  5. Persad A, Khan A . 2002-04-01 . Comparison of life table parameters for Maconellicoccus hirsutus, Anagyrus kamali, Cryptolaemus montrouzieri and Scymnus coccivora . BioControl . 47 . 2 . 137–149 . 10.1023/A:1014581616965. 21329931 .