Predation onCicindelaby a Dragonfly

Abstract
Tiger beetles of the GenusCicindela(Coleoptera: Cicindelidae) apparently have few natural enemies. About seven per cent of the larvae ofCicindela scutellaris leconteiHald, are parasitized by larvae ofSpongostylum analeSay (Diptera: Bombyliidae) according to Shelford (1909, 1913). Frick (1957) notes egg deposirion by a “small black bombyliid fly” in the larval burrows ofCicindelain Washington State. Wallis (196l) has seen large asilid flies capture tiger beetles on the wing. He believes that the asilids attack only while theCicindelaare in flight and vulnerable areas are exposed; the beak is inserted in the softer parts just behind the scutellum.

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