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Bug Of The Week

- KINGDOM Animalia

- SUBKINGDOM Eumetazoa

- PHYLUM Arthropoda

- SUBPHYLUM Hexapoda

- CLASS Insecta

- ORDER Plecoptera

- FAMILY Perlodidae

- GENUS Isoperla

- SPECIES grammatica

Isoperla grammatica  (Imago  )



The yellow sally (Isoperla grammatica) is an important stonefly for the fly angler, it hatches often in big numbers

Its flying period spans from April to August

Ventral view



Dorsal view detail, notice the typical horseshoe pattern on the head

Detail of the thorax, head and feeding apparatus, ventral view

Abdomen and cerci, ventral view