Search results for "Pyralidae"
showing 7 items of 7 documents
Food quality affects the expression of antimicrobial peptide genes upon simulated parasite attack in the larvae of greater wax moth
2017
Predator‐prey interactions are an important evolutionary force affecting the immunity of the prey. Parasitoids and mites pierce the cuticle of their prey, which respond by activating their immune system against predatory attacks. Immunity is a costly function for the organism, as it often competes with other life‐history traits for limited nutrients. We tested whether the expression of antimicrobial peptides (AMP) of the larvae of the greater wax moth Galleria mellonella (L.) (Lepidoptera: Pyralidae) changes as a consequence of insertion of a nylon monofilament, which acts like a synthetic parasite. The treatment was done for larvae grown on a high‐quality vs. a low‐quality diet. The expres…
Effect of the juvenile hormone analogue fenoxycarb applied via the host on the parasitoid Phanerotoma (Phanerortoma) ocularis Kohl (Hym. Braconidae)
1993
Abstract Concentrations of 0.001, 0.005, 0.01, 0.05 and 0.1 μg/ml of fenoxycarb (Ro 13-5223) were applied topically to larvae of Ephestia kuehniella Zeller parasitized by Phanerotoma (Phanerotoma) ocularis Kohl. The effect of the treatment and concentration on parasitism rates, preimaginal mortality and emergence rates of the parasitoid were studied comparatively for each larval instar of the host considered. The preimaginal mortality was high when the fenoxycarb was applied on the first larval instar of the host (23–46%) and more higher when applied to the sixth larval instar of the host (40–86%). Consequently, fenoxycarb treatment of the last larval instar of the host produced a reduction…
Parasitization ofEphestia kuehniellaZeller (Lep., Pyralidae) byPhanerotoma (Phanerotoma) ocularisKohl (Hym., Braconidae)
1993
Laboratory studies of the parasitism by P. (P.) ocularis into E. kuehniella showed that this parasitoid had a great capacity to parasitize the host. Real parasitism rate turned between 84.5% and 100% whereas effective parasitism and adult emergence rate were, comparatively, lower. Superparasitism rate was low (16.57 %). Zusammenfassung Parasitierung von Ephestia kuehniella Zeller (Lep., Pyralidae) durch Phanerotoma (Phanerotoma) ocularis Kohl (Hym., Braconidae). Parasitismus, Superparasitismus und Schlupfraten Laboruntersuchungen zur Parasitierung von Ephestia kuehniella durch P. (P.) ocularis zeigten, das dieser Parasitoid eine sehr hohe Parasitierungsleistung hat. Die reale Rate lag zwisc…
The Tortricidae described by J. C. Fabricius (Lepidoptera)
2011
The identity and nomenclature of the 88 species of Tortricidae (Lepidoptera) described by J. C. Fabricius are reviewed. Type material deposited in the Natural History Museum Denmark is illustrated. Lectotypes for Tinea compositella (Fabricius, 1775), Pyralis rivellana (Fabricius, 1775) and P. strigana (Fabricius, 1775) are designated. Two new synonymies are proposed: Pyralis marmorana (Fabricius, 1798), syn. n., of Ancylis achatana (Denis and Schiffermuller, 1775), and P. rusticana (Fabricius, 1794), syn. n., of Epinotia solandriana (Linnaeus, 1758). In an appendix, the identity and nomenclature of the 49 species of non-Tortricidae described by Fabricius in the genus Pyralis Linnaeus, 1758 …
The predatory mirid Dicyphus maroccanus as a new potential biological control agent in tomato crops
2014
The first record of the omnivorous predator Dicyphus maroccanus Wagner (Hemiptera: Miridae) inhabiting tomato crops in the Valencia region (East Coast of Spain) was in 2009. Since then, D. maroccanus has often been found preying on the eggs of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in this area. To evaluate this predator’s potential as a biological control agent, its life-history traits in the presence and absence of prey [(eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae)] on tomato plants were studied under laboratory conditions. Immature stages that preyed on eggs of E. kuehniella developed successfully. However, no nymph completed development on the plant without t…
Intra- and Trans-Generational Phenotypic Responses of the Greater Wax Moth, Galleria mellonella, to a Low-Nutrition Larval Diet
2020
We investigated the intra- and trans-generational effects of larval diet on immune function, body size and development time of the greater wax moth, Galleria mellonella (Lepidoptera: Pyralidae). We found that moths reared on a diet diluted with cellulose (a low-nutrition diet) were about one-third smaller, had about one-fifth longer development time and exhibited about 10% stronger encapsulation responses as compared with moths reared on the standard diet. The low-nutrition parental diet prolonged the development time of male offspring that were fed the low-nutrition diet by about 4% and the development time of female offspring that were fed the standard diet by about 1%. However, females t…
Survey of the parasitoids of the European Sunflower MothHomoeosoma nebulella [Lep.: Pyralidae] in the palearctic region
1993
The European Sunflower MothHomoeosoma nebulella Denis & Schiffermuller is a potential pest on sunflower in France. The parasitoids of this moth are little known. We present here original data obtained in the south of France together with previous survey. Some parasitoids we found were new records onH. nebulella. The relative weakness of the parasite complex ofH. nebulella (less than 15 species) compared to that of the American Sunflower MothH. electellum (Hulst) is discussed.