Comprehensive Description

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General Description

Delia radicum may be distinguished from other Delia species occurring in the field by the following combinations of characters: Adults look similar to house flies but are smaller (5mm), dark ash grey color with a dark stripe along the top of the abdomen, and covered with black hairs and bristles (setae).The reddish purple eyes on males nearly touch in the centre of the head while female eyes are separated. In males, the presence of the basal brush of long setae (anteroventral setae) on the hind femur and by relatively shorter lateral setae of the 5th sternite processes. In females, in the hind femur, the row of anteroventral setae is normally uneven and posteroventral setae are lacking.


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© University of Alberta Museums

Source: University of Alberta Museums

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