Image Number: 1440130

Syrphid larvae [Allograta obliqua (Say) and others] are greenish or brownish maggots that are predators of aphids. The larvae has an indistinct tapering head with mouth hooks on the anterior end. A pair of dorsal tracheal trunks, visible through the thin skin, make this maggot appear to have two longitudinal stripes along its back. Larvae feed on aphids by sucking out their body fluids. Depending on the species, a larva can consume 100-900 aphids during its lifetime. The brown pupal case is tear-dropped shaped with a prominent tube at the posterior end. The adult flies are brightly colored, wasp- like insects with bands across their abdomen. They are often seen hovering over plants. Syrphid flies have one pair of wings, while wasps have two pairs.
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Image location:
United States


Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Atelocerata
Class: Hexapoda (including Insecta)
Infraclass: Neoptera
Subclass: Pterygota
Order: Diptera
Suborder: Brachycera
Infraorder: Cyclorrhapha
Superfamily: Aschiza
Family: Syrphidae
Subject: syrphid or flower flies


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (burley type) L.
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Image uploaded:
Monday, January 1, 1990
Image last updated:
Monday, May 23, 2011