Effect of prey density on the performance of and its predation rate against the cabbage aphid, (L.).

(F.) (Diptera: Syrphidae) is the most abundant syrphid fly which is distributed worldwide and is the sole predator of aphids. Therefore, the present study was conducted to evaluate the predation rate and functional response of against the cabbage aphid, (L.

Moths (Insecta: Lepidoptera) of Delhi, India: An illustrated checklist based on museum specimens and surveys.

Background: There have been several recent checklists, books and publications about Indian moths; however, much of this work has focused on biodiversity hotspots such as North-east India, Western Ghats and Western Himalayas. There is a lack of published literature on urban centres in India, despite the increased need to monitor insects at sites with high levels of human disturbance. In this study, we examine the moths of Delhi, the national capital region of India, one of the fastest growing mega-metropolitan cities.