[1] The original type specimens for E. petiolatus, "E." tridentatus and "E." brevicornis were part of the Albertus Universität, Königsberg collection of ambers, and all were possibly lost to fire during the bombing of Kaliningrad in World War II.

They noted that Electrostephanodes may merit elevation to full genus status, but the lack of additional known fossil specimens to consult meant they opted for a conservative subgenus placement.

[1] The Electrostephanus petiolus male adult has an elongated body which is 9.84 mm (0.387 in) long with an overall coloration ranging from black to dark brown and having scattered setae.

The typical "crown" is a group of five tubercles places in front of four small ridges running crossways over the head capsule.

The wings are hyaline in coloration, with a dark brown pterostigma that is parallel sided and the estimated fore-wing length is 5.04 mm (0.198 in).