Trivia of the Month - Answer...

The question was what is the insect most usually met with in the field of heraldry?  The answer is the bee.  As our source says, “Being considered, as it is, the symbol of industry, small wonder that it has been so frequently adopted.

The question (& answer) were found on p. 260 of A Complete Guide to Heraldry by A. C. Fox-Davies.  The book was published in 1978 by Crown Publishers.