The life­cy­cle and top im­i­ta­tions to try

Trout Fisherman (UK) - - Contents -

BE­LONG­ING to the Ephe­meroptera fam­ily, olives is a generic term re­fer­ring to – on rivers – the large dark olive ( Baetis rho­dani ), medium olive ( Baetis ver­nus; Baetis tena x), blue winged olive and sherr y spin­ner ( Ephe­merella ig­nita) and small dark olive ( Baetis scam­bus). For still­wa­ters, olives re­fer to lake olives ( Cloeon sim­ile) found on large still­wa­ters and pond olives ( Cloeon dipterum) found ob­vi­ously in ponds . They ap­pear ver y sim­i­lar to may f lies only much smaller.

Key points to copy

T y pi­cally, olives have two large, up­right wings that are ei­ther trans­par­ent or opaque. They have ei­ther two or three long tails, a seg­mented body and tho­rax plus some may have two small hind wings. Their life­cy­cle is t y pi­cal for all mem­bers of the Ephe­meroptera fam­ily in that there are four ba­sic stages – the egg stage, nymph stage, dun (winged adult) and fi­nally the spin­ner (spent fly af­ter egg lay­ing). Fish adult pat­terns as a sin­gle dry fly on a ta­pered leader and copoly­mer tip­pet. Oth­er­wise use stan­dard nymph set ups as you would fish a PTN.

“Olives ap­pear very sim­i­lar to mayflies, only much smaller.”

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