Diplectrona bulla is a species of caddisfly belonging to the order Hydropsychidae. The species was first described by Keith Arthur John Wise in 1958, and is endemic to New Zealand.
Wise's original text (the type description) reads as follows:
Wise noted that the species was morphologically similar to Diplectrona zealandensis, but could be distinguished by the complex genitalia of D. bulla.
The species is endemic to New Zealand, known to sporadically occur on the North Island.[1]