Crawfish Looking Bug . The baby cockroach is a slightly lighter color, with slightly formed stripes from its. The body of a decapod crustacean, such as a crab, lobster, or prawn (shrimp), is made up of twenty body segments grouped into two main body parts, the cephalothorax and the abdomen.each segment may possess one pair of appendages, although in various groups, these may be reduced or missing.on average, crayfish grow to 17.5 cm (6.9 in) in length. Bug o'the Week Crayfish Revisited Riveredge Nature Center from www.riveredgenaturecenter.org If you don’t want to have burrowing crayfish problems again, don’t release them to a nearby waterway. The use of crawfish dishes stimulates the appearance of digestive, skin and respiratory manifestations. The giraffe weevil is sexually dimorphic, with the neck of the male typically being 2 to 3 times the length of that of the female.