Close window

Sawflies (PERGIDAE)

Sawflies are in the same order of insects as ants, bees and wasps (HYMENOPTERA) in a separate suborder, SYMPHYTA. Ants, bees and wasps belong to APOCRITA. Sawflies do not have the distinctive thin waist of the other hymenopterans, nor can they sting. Most Pergidae genera are typical herbivores when larvae, which are more commonly seen than adults. Larvae rear up and sometimes exude an unpleasant smelling liquid when disturbed. They are often seen during the day in large, closely-packed groups on branches or on the ground.

Lophyrotoma zonalis, Paperbark Saw Fly, male from side


Paperbark Saw Fly (Lophyrotoma zonalis Rohwer) is a wasp relative in the Hymenoptera. This species feeds on Melaleuca spp (Myrtaceae). Adult wasps (misnamed as 'flies') are black with yellow markings. Lophyrotoma zonalis has been introduced into Florida, where Australian Paperbarks have begun multiplying out of control. Thanks to Don Herbison-Evans and Peter Chew for help identifying both the adult male and the larvae.

Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, male from above


Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, male from side


Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, male from side


Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, male from above, oblique view


Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, male from side


Pergidae Male
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, larva side on


Lophyrotoma zonalis, Paperbark Saw Fly
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, larva face on


Lophyrotoma zonalis, Paperbark Saw Fly
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, larva face on closer


Lophyrotoma zonalis, Paperbark Saw Fly
Photo: Robert Whyte

Lophyrotoma zonalis, Paperbark Saw Fly, larva face on, very close


Lophyrotoma zonalis, Paperbark Saw Fly
Photo: Robert Whyte

Perga sp? larvae


Perga sp
Photo: Robert Whyte

References