Fruit flies (Tephritidae) are the most agriculturally important family of flies. Some species are pests, together causing billions of dollars in losses annually, whereas other species are beneficial biological control agents of weeds. Fruit flies are also among the most attractive and biologically interesting Diptera, having patterned wings and often brightly colored and/or patterned bodies, which may be used in mimicry of jumping spiders or wasps and in elaborate courtship and other behaviors.

It is Evolution which make these fly to have spider image on these wing to save themself from predictors. The image on the wing is absolutely perfect,” says Dr Brigitte Howarth, the fly specialist at Zayed University who first discovered G tridens in the UAE. The species has been known since 1910, and is found in the Near and Middle East, Asia, and Asia