What is the scientific name of this lovely orange black flying beetle?
This is a blister beetle from the species Mylabris pustulata.

Here is another photo for comparison:



Source: http://www.knowyourinsects.org/Coleoptera1.html

And, just for fun, the specimen in my link and yours, side by side:



It's worth mentioning that Mylabris has been confused with the Genus Hycleus, and the synonymy is complex.