Tipula oleracea L A common crane fly

Adults of this generally common species appear earlier in the year than those of Tipula paludosa (above). Larvae also occur somewhat earlier and, as a result, often cause noticeable damage to plants in the same year as eggs were laid. Unlike those of the previous species, gravid females are usually able to fly away from emergence sites, so there is less likelihood of populations in following crops escalating to damaging levels. It has been observed, however, that emerging adults can be 'trapped' beneath the canopy of post-flowering oilseed rape crops; this can result in the appearance of unusually large populations of larvae of this species in following winter wheat crops. Unlike T. paludosa, this species has two generations per year, adults occurring at various times from April to October. The antennae of adults are 13-segmented and the wings (wing length: 1828mm) are at least as long as the body (cf. T. paludosa, above); larvae are distinguishable from those of T. paludosa by the two pairs of elongated, subtriangular anal papillae.

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