Polymorphism of Cheilomenes sexmaculata (Fabricius) (Coleoptera: Coccinellidae) in Haryana, India
Vijay Singh, Vivek Goyal, Suman Devi, Santosh Hooda and Vinay Malik
The study of polymorphism related to Cheilomenes sexmaculata (Fabricius) (Coleoptera: Coccinellidae) was conducted during the year 2015-16 in Haryana, India. The family Coccinellidae is known for the ladybird beetle species having different morphs showing variations of elytral colour patterns within and between the species. A large number of specimens were collected by sweep nets or handpicking from the agricultural as well as wild areas of the Haryana and six different morphs of this species were identified, comprising of three melanic and three non-melanic forms. The different morphs of the species were identified on the basis of the external characters and the shape of male genitalia. The pattern of the pronotum was similar while the pattern of the elytra was quite variable in all the six types of morphs. Thus the present study documents variable elytral colour polymorphism within C. sexmaculata in Haryana.