Review and analysis of information on the biology and morphology of immature stages of robber flies (Diptera: Asilidae) Author Dennis, Steve Author Barnes, Jeffrey K. Author Knutson, Lloyd text Zootaxa 2013 3673 1 1 64 journal article 37022 10.11646/zootaxa.3673.1.1 dcf48cdc-ea07-4b0b-b067-01ffa4a3fb2d 1175-5326 283950 2D0CEAB4-5CC6-42B6-8388-FBA7113C87C2 Subfamily Brachyrhopalinae Most eggs of Brachyrhopalinae have been oviposited in the soil or debris on the ground, although Brachyrhopala may oviposit on vegetation such as Acacia spp. Cyrtopogon oviposit 2 to 4 eggs that are elongate and creamy white. The eggs range in length from 1.12 to 1.42 mm and width from 0.42 to 0.56 mm. They have not been examined with a SEM. The larval and pupal stages occur in the soil. The larval stage for Brachyrhopala lasts for about 155 days; whereas the pupal stage for Brachyrhopala and Holopogon lasts for 23 to 42 days. Larvae of Brachyrhopala are reported to feed on the larvae of Cerambycidae ( Phoracantha semipunctata (Fabricius)) . Holopogon larvae feed on Coleoptera and other insect larvae. Some morphological information has been published on the larvae of Cyrtopogon and Heteropogon . Morphological information on the pupae has been published for Ceraturgus , Cyrtopogon , Heteropogon , and Holopogon .