The official seal of the society was adopted at the society's November 2, 1893 meeting[2] and first appeared in March 1894.[3] The insect featured in the seal is a winged male Rheumatobates rileyi Bergroth (Hemiptera, Gerridae), a water strider about 7 mm long including outstretched legs.
In March 1886, the society began publishing the Proceedings of the Entomological Society of Washington.[1] Of the dozens of entomological societies that have existed for varying periods,[5] only three in the Americas having continued uninterrupted publication of their periodicals are older than the Entomological Society of Washington.[1]
^"[Proceedings, November 2, 1893]". Proceedings of the Entomological Society of Washington. 3: 83. 1893. President Riley in the chair, and twelve members present. Mr. Heidemann presented designs for a seal for the Society. One of the designs was adopted, and Mr. Heidemann was urged to engrave it upon wood. Upon motion, a vote of thanks was extended to Mr. Heidemann for his voluntary services in this matter.