Pseudaspidimerus trinotatus explained

Pseudaspidimerus trinotatus, is a species of lady beetle found in India, Sri Lanka and Myanmar.[1] [2]

Description

The mean body length is about 2.97 mm. Some specimens rarely have pronotal and elytral spots and mostly lack the pronotal and sub scutellar spots. The form testaceus is without any markings. It has bright golden yellow to reddish brown body and sometime dark brown in color.[3] [4]

Eggs are spindle shaped and pale yellow. The incubation period is about 4 days. There are four instar larval stages. The total larval period is about 10 days. The pre-pupal and pupal period is about 1.5 and 7.8 days, respectively. Total life cycle is about 50 days by male and 55 days by female.[5]

Biology

It is a predator of several whiteflies, aphids and scale insects such as Aphis craccivora, Aleurodicus dispersus, Aleurodicus dispersus, Aphis fabae, Aphis nerii, Aphis malvoides, Pseudococcus, Aphis spiraecola, Hysteroneura setariae, Melanaphis sacchari, Lipaphis erysimi, Pentalonia nigronervosa, Rastrococcus iceryoides, Ferrisia virgata, Toxoptera odinae and Chloropuluinaria psidii.[6]

Notes and References

  1. Web site: Morphometrics of ladybird beetle Pseudaspidimerus trinotatus (Thunberg). . 2021-09-09 . www.cabdirect.org.
  2. Web site: Biology and Feeding Potential of Pseudaspidimerus trinotatus (Thunberg) (Coleoptera : Coccinellidae) and Chrysoperla carnea (Stephens) (Neuroptera : Chrysopidae) on bean aphid, Aphis craccivora Koch . 2021-09-08 . krishikosh.
  3. Poorani . J. . 2001 . A review of the genus Pseudaspidimerus Kapur (Coleoptera: Coccinellidae) from The Indian subregion with description of a new species . 2021-09-09 . Oriental Insects . 35 . 299–310 . en . 10.1080/00305316.2001.10417309. 84413013 .
  4. Web site: Predatory Coccinellids (Coleoptera: Cocinellidae) of vegetable insect pests: a survey in mid country of Sri Lanka . 2021-09-08 . Tropical Agricultural Research Vol: 19, 69-77 (2007).
  5. Web site: Biology of lady bird beetle, Pseudaspidimerus trinotatus (T.) on bean aphid, Aphis craccivora Koch. . 2021-09-09 . www.cabdirect.org.
  6. Web site: Pseudaspidimerus trinotatus . 2021-09-09 . www.cabi.org.

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