Afrotropical Asilidae (Diptera) 4. The genus Pegesimallus Loew, 1858 (=Lagodias Loew 1858, Neolaparus Williston, 1889), including species from other zoogeographical regions and the descriptions of two new genera, Brevirostrum and Caroncoma. Annals of the Natal Museum, 24(1) 1980: 233-347. 323 [Zoological Record Volume 117]