A new leafminer on grapevine and Rhoicissus (Vitaceae) in South Africa within an expanded generic concept of Holocacista (Insecta,Lepidoptera, Heliozelidae) |
| |
Authors: | Erik J van Nieukerken Henk Geertsema |
| |
Institution: | 1.Naturalis Biodiversity Center, PO Box 9557, NL-2300 RA Leiden, The Netherlands ;2.Research Associate, Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland, 7602 South Africa |
| |
Abstract: | A grapevine leafminer found recently in table grape orchards and vineyards in the Paarl region (Western Cape, South Africa) is described as Holocacista
capensis
sp. n. It has also been found on native Rhoicissus
digitata and bred on that species in the laboratory. It is closely related to Holocacista
salutans (Meyrick, 1921), comb. n. (from Antispila), described from Durban in KwaZulu-Natal, but widespread in southern Africa and a native leafminer of various Vitaceae: Rhoicissus
tomentosa, Rhoicissus
digitata, Rhoicissus
tridentata and Cissus
cornifolia. Holocacista
capensis has been found on Vitis
vinifera both in Gauteng and Western Cape, the earliest record being from 1950 in Pretoria. The initial host shift from native Vitaceae to Vitis must have occurred much earlier. The species is sometimes present in high densities, but hitherto no sizeable damage to the crops has been noted. The genus Holocacista Walsingham & Durrant, 1909, previously known from the single European grapevine leafminer Holocacista
rivillei (Stainton, 1855), is expanded and redescribed and for the first time reported from Africa, East and South-East Asia and Australia. It comprises seven named species and at least 15 unnamed species. The following species are also recombined with Holocacista: transferred from Antispilina: South-African Holocacista
varii (Mey, 2011), comb. n., feeding on Pelargonium, transferred from Antispila: the Indian species Holocacista
micrarcha (Meyrick, 1926), comb. n. and Holocacista
pariodelta (Meyrick, 1929), comb. n., both feeding on Lannea
coromandelica, and Holocacista
selastis (Meyrick, 1926), comb. n. on Psychotria
dalzelii. We also remove the following from Antispila: Heliozela
anna (Fletcher, 1920), comb. n. and Heliozela
argyrozona (Meyrick, 1918), comb. n., whereas the following Indian Vitaceae feeding species are confirmed to belong in Antispila s. str.: Antispila
argostoma Meyrick, 1916 and Antispila
aristarcha Meyrick, 1916. Holocacista
salutans and Holocacista
varii are redescribed and diagnosed against Holocacista
capensis and other South African Heliozelidae. DNA barcodes are provided for 13 species of Holocacista. |
| |
Keywords: | Host shift leafminers Vitaceae" target="_blank">Vitaceae viticulture table grapes Rhoicissus" target="_blank">Rhoicissus Cissus" target="_blank">Cissus DNA barcode genitalia Holocacista" target="_blank">Holocacista Antispilina" target="_blank">Antispilina Antispila" target="_blank">Antispila Afrotropics South Africa Zimbabwe India |
|
|