In what weather are fireflies easy to appear?

Fireflies usually appear in hot summer, from July to September, and live as larvae in pools or swamps before July. Fireflies are active at night, eggs, larvae and pupae often glow, and adults glow to attract the opposite sex. Larvae prey on snails and small insects, and like to live in moist and warm places with rich vegetation.

Fireflies:

Firefly (English: Firefly), also known as Luminous, Sedum, Ruyi, Nocturnal, Firefly, Nocturnal Candle, Ye Yao, etc. , belonging to COLEOPTERA, a small beetle named firefly because its tail can emit fluorescence. There are about 2000 species of this kind of insect with luminous tail, among which black firefly, red firefly and window-breasted firefly are common in China. Fireflies are about 0.8 cm long, flat and slender, with a small head, soft body walls and coleopters, and a large bra covering the head. The antenna of male worm is long, 1 1 node, flat or serrated; There are 6~7 webbed abdomen, with luminous body at the end, which can emit fluorescence; Most males have wings. Female insects have no wings, their bodies are bigger than those of male insects, and they can't fly, but their fluorescence is brighter than that of male insects.