Brachyrhopalinae

Dennis, Steve, Barnes, Jeffrey K. & Knutson, Lloyd, 2013, Review and analysis of information on the biology and morphology of immature stages of robber flies (Diptera: Asilidae), Zootaxa 3673 (1), pp. 1-64 : 6

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 .