Delaware State Insects
State Bug: Lady Bug
Adopted April 25, 1974, the Lady Bug was chosen by the Legislature after an intensive effort on the insect's behalf by Mrs. Mollie Brown-Rust and her 2nd grade students of the Lulu M. Ross Elementary School in Milford, Delaware.
Delaware Code Title 29 § 309
State Butterfly: Tiger Swallowtail
Adopted on June 10, 1999, the Tiger Swallowtail ( Pterourus glaucus ) was declared the State’s official butterfly. The tiger swallowtail, a large, yellow, black-striped butterfly, is indigenous to Delaware and can be seen in deciduous woods, along streams, rivers, and wooded swamps, and in towns and cities throughout Delaware. Three butterflies were chosen by students of the Richardson Park Learning Center as possible State butterflies; then 1,611 out of 3,175 public and parochial students all over the State voted to suggest to the Legislature that the tiger swallowtail be named the State’s butterfly.
Delaware Code Title 29 § 315
State Macroinvertebrate: Stonefly
On May 4, 2005, the Stonefly (Order Plecoptera) was designated as Delaware's State macroinvertebrate, because it is an indicator of the excellent water quality in the State. The designation of the stonefly was a means whereby Delaware State government could recognize the importance of excellent water quality and the vital role played by healthy aquatic ecosystems in Delaware.
Designating a State macroinvertebrate is a highly appropriate means to raise public awareness of water quality issues, and complement citizen action programs like Delaware Stream Watch . Through their participation in the Delaware Stream Watch Program, the designation of the stonefly as the official State macroinvertebrate was supported by the following schools:
Gunning-Bedford Middle School, Salesianum High School, Delcastle Technical High School, Dickinson High School Environmental Club, The Independence School, Springer Middle School, St. Andrews School, and The Charter School of Wilmington.
By designating the stonefly as its State macroinvertebrate, Delaware once again demonstrated its leadership as the First State, because currently, no other state in the United States has designated an official State macroinvertebrate to accompany their State symbols, such as their State flag, State flower, State bird, State bug, State butterfly and State marine animal.
Delaware Code Title 29 § 320