Other than members of the P. tonica group (which barely extends south of the Equator), five species of P. occur in tropical and southern Africa: P. vignaudii (Guerin), pp. angolensis Bolivar, P. granulata Stal, P. rugosa (Key) and P. minuta Kevan. A key to the species and their principal and recent synonymies are given. All are illustrated and redescriptionbed. All known localities for each species are listed and/or mapped. Relationships and biogeography of the species discussed are briefly considered.
Iasomorphus drakensteini theroni subsp. nov. is descriptionbed from material taken in Angola and is compared with the nominate form as well as with l. drakensteini monticolus Linnavuori & Quartau, 1975.
Different amounts of leaf damage were caused to several maize genotypes by stalk-borer larvae feeding in whorl tissue. The extent of damage was correlated with the mean larval biomass/plant, which varied in the different maize genotypes.
The genus Kerremansia Peringuey is reviewed with K. paradoxa Peringuey = K.junodi Obenberger syn. nov. K. arcuata Peringuey is transferred to Pseudokerremansia gen. nov. A new genus and species, Cupriscobina loranthae, is descriptionbed for a series of specimens recently collected by the authors. The affinities of these three genera are discussed and the three species are fully illustrated.
A new genus, Lepidoclema is descriptionbed for two new species. L. magna and L. parva from the southern Namib desert dune area. The species are illustrated and the genus is compared to the closest genera in the Coraebini. The ecology and distribution of the two species are recorded and discussed.
The African Polyctesini and Acherusini are re-descriptionbed and illustrated, completing the recent revision of the Polycestinae of the region (Holm 1982). Several hundred new distribution records and a number of biological notes are recorded for the African Acmaeoderinae, Julodinae and Polycestinae. Three new Acmaeodera species and four new subspecies are descriptionbed.
The potato tuber moth, Phthorimaea operculella (Zeller), does not undergo diapause in South Africa. During winter a single generation develops very slowly in potatoes left behind in the fields after harvesting. The pupal periods of overwintering larvae were longer than normal. Pupal period collected in September was normal. The cause of the extended pupal period is obviously exposure of larvae to winter temperatures. Its effect is to delay the emergence of adults until volunteer potato plants are present for the spring generation to develop on. Without it, few or none of this generation would survive.
The southern African panopine genus Stenopialea Speiser is revised. Stenopialea beckeri Speiser and S. nyasae (Brunetti) (transferred from Cyrtus Latereille) are redescriptionbed. Stenopialea milleri is descriptionbed as new. The type locality of S. primitiva Schlinger (previously unknown) is given.
A serious problem caused by nuisance-value mosquitoes has existed at Richards Bay for many years. This was attributed to Mansonia uniformis breeding in the extensive swamps associated with the Mhlatuze delta and Lake Msingazi. This programme confirmed that M. uniformis was the principal biter, and bred in swamps.
The generic placement of five species of coraebine buprestids currently classified under Phlocteis is changed, based upon the examination of type material and additional specimens. Three new combinations and four new synonyms are proposed, while two species are reinstated in their original generic combination.
This is the first in a series of papers revising the systematics of the southern African Myrmeleontidae (Neuroptera). It introduces the series, reviews literature on Myrmeleontidae from the subregion, discusses zoogeography, biology and higher classification, provides a preliminary key to local genera and revises the genus Bankisus Navas.