Biological Characters of Hoplitis pyrrhosoma

This paper first reports the biological characteristics of Hoplitis pyrrhosoma , such as morpha, not including female adult, life history, sexual behavior, generation and development, etc. This kind of bee takes place one generation in one year in West Erdos region. It hibernates in state of diapause larva, and starts to pupate in mid April of the next year. The prepupal period is as short as about one day, and pupal period is about fifteen days. The adult's eclosion time is different individually, from early May to late June. The male appears a few days earlier than the female, dies soon after mating, its life span is about 10 days. The female's life span about 30 days. The ovum is about 3 days in period, but the larval stage is as long as about three hundred days. Most last instar larvae begin to callus in mid and late June, and enter diapause state. Diapause larvae hibernate in the folloculi. Through controlling temperature artificially the diapause can be broken ahead of time, furthermore the eclosion may be postponed.