Cedar Creek
Ecosystem Science Reserve


Insects of Cedar Creek

Order DIPTERA

Family CONOPIDAE

(Thick-headed Flies)

(Table of Species)

The Thick-headed Flies (67 NA spp) are parasitic in the nests of wasps and bees. A few are said to attack grasshoppers. Adults are said to alight and deposit eggs on their flying hosts. They are most frequently found at flowers--feeding on nectar with their long proboscis.The most frequently encountered Conopids are Physocephala and Physoconops spp. They are brown and yellow marked with a slender waist mimicing Polistes wasps. Other species collected include Dalmannia sp. Thecophora spp, and Zodion spp.


webmaster@cedarcreek.umn.edu Last updated May, 2000