PESTNET — a free service to help combat crop pests and diseases.
Pests Pests Entities Insects Beetles Myllocerus, mango, Pakistan
http://images.google.com/images?q=Myllocerus as well as a Pest Alert:
http://www.doacs.state.fl.us/pi/enpp/ento/weevil-pest-alert.html
There were suggestions of chemical control. Also suggested were products containing Metarrhizium anisopliae formulated as a granule for easy application.