Notes: Three of the four Oligia species, especially their melanic forms, can only reliably be recorded at specific level following dissection, although it may possible with experience to assign well-marked individuals to O.strigilis or O.latruncula at a particular site once the observer is familiar with the forms present in that area. Widespread and common.

Flightime guide
J	F	M	A	M	J	J	A	S	O	N	D