The Neotropical parasitoid wasp Dolichogenidea gelechiidivoris (Marsh, 1975) (Hymenoptera: Braconidae), one of the most important biocontrol agents of the South American tomato pinworm Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae), is reported for the first time from Africa, from tomato grown in open fields and greenhouses in several regions of Algeria. Color photos of specimens from Algeria, Spain and South America, as well as the holotype and one paratype are provided. Morphological and molecular details to better characterize and recognize the species are also provided. We speculate that D. gelechiidivoris arrived accidentally to Algeria from Spain, where it has recently been reported. The consequences for future biocontrol projects against T. absoluta in Africa are discussed.
Biology and complex of natural enemies of Tuta absoluta in Mostaganem (Algeria)
L'apparition de Tuta absoluta Meyrick en Algérie a suscité l'implication du secteur agricole et scientifique dans des travaux de recherches visant à le contrôler par différentes méthodes appropriés. Notre travail a porté sur l'étude de la biologie de Tuta absoluta et du prédateur Nesidiocoris tenuis et l'inventaire de son complexe parasitaire dans la région de Mostaganem. Le cycle de développement de T. absoluta est de 21,1±0,4 jours à 26±1,6°C et une HR de 87±6,4% et 29,4±2 jours à 23,4±2°C et une HR de 75±3%. N. tenuis a fait ressortir un cycle de développement de 17,1±0,5 jours à 26±1,6°C, une longévité de 16±1,6 jours pour les individus alimentés aux larves de T. absoluta et de 9±2,2 jours pour ceux non alimentés. L'inventaire a mis en évidence la présence de trois espèces de prédateurs de T. absoluta: Nesidiocoristenuis Reuter, Macrolophus pygmaeus “caliginosus” Wagner et Dicyphus errans Wolff; ainsi que six parasitoïdes : Necremnus artynes Walker, Neochrysocharis sp., Sympiesis sp., Diglyphus isaea Walker, un Braconidae et un Ichneumonidae. Necremnus artynes a été le parasitoïde le plus fréquent et le plus abondant.
Coniopteryx (Metaconiopteryx) tjederi Kimmins, 1934, new species for the Algerian fauna (Neuroptera, Coniopterygidae). Coniopteryx (Metaconiopteryx) tjederi Kimmins, 1934, has been collected during a bioecological study of citrus entomofauna. This is the first mention of this species for Algeria.
Several species of hyperparasitoids belonging to the subfamilies Charipinae (Hymenoptera: Figitidae) and Pteromalinae (Hymenoptera Pteromalidae) have been identified in the region of Mostaganem (north-western Algeria). Among these species, two of them show a regular presence during the years of study, Pachyneuron aphidis (Bouche, 1834) (Pteromalidae), and Phaenoglyphus villosa (Hartig, 1841) (Figitidae). These two species have been proved to be effective in adapting very quickly to the environment.
Nephus incisus has previously been considered to be a species endemic to the Canary Islands. In this note we present data indicating that its range is wider. The newly recorded sites are in northern Algeria, south of mainland Spain and Cape Verde.
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