Hi, My mom,who lives in Brattleboro has a new bug in her garden. Unfortunately she does not have a smart phone and I do not have a photo. It is between 1/3 and 1/2 inch long, oval shape,does not fly when disturbed,it borrows into the soil, is reddish-orange with two black stripes that go the length of its body,the stripes curve but do not touch at the center of its back--sort of like this )( . She has never seen them before and wants to know if they are harmful to her garden. I am on the coast south of Boston and can not find any info in any of my books. Anyone in southern Vermont have any clues?