Elwood 5566

Hanyorum – High Summer (한여름)

Posted in Animals, Diary notes, Quintesentially Korean, seasons by 노강호 on August 25, 2010

Hanyorum in Daegu - stifling!

Hanyorum (한여름) is the period of high summer and generally occurs in early August when the changma (장마) has moved North into Manchuria. Hanyorum is typified by high temperatures, reaching 38 degrees Fahrenheit, (100 degrees Celsius), in the afternoons and hot and humid nights.

One characteristic of hanyorum is the appearance of crickets (귀뚜라미), though you are more likely to hear them than see them. I both saw and heard  crickets yesterday (August 24th), though they may have been chirping earlier than this. Crickets differ from grasshoppers (메뚜기) in that they are nocturnal and the song of both differ from the omnipresent scream of the cicadas (매미).

A cicada - or memi (매미). The sound of summer!

Grasshoopers (메뚜기), which some Koreans enjoy eating, are diurnal insects and their chirp is often drowned by the memis’ summer shriek, so you need to listen carefully to hear them. Their chirp is more noticeable when there is a lull in the memi scream. They are bright or vivid green, have antennae which are always shorter than their body, and long wings which when in flight are often coloured.

Grasshopper - (메뚜기). Mmmm- delicious!

Crickets (귀뚜라미), are nocturnal and as such require darker camouflage, usually pale green or brown. Their antennae are often the equivalent length of their abdomen and have atrophied or even absent wings and hence, do not fly. They also have ears located on their legs in the form of a white spot or mark. In hanyorum, the chirping of crickets (귀뚜라미) fill the evening air and as such they chirp at lower temperatures than the memi. While memi (cicadas) start screaming at 29 degrees Celsius, the cricket will chirp at cooler temperatures, as low as 13 degrees Celsius. Using Dolbear’s Law (based on Snowy Tree Crickets), it is possible to work out the approximate temperature in Fahrenheit by counting a cricket’s chirps over 14 seconds and adding 40. An interesting if not useless equation unless you happen to have a cricket in isolation, but on one or two occasions, I have had one chirping inside my ‘one room.’

Cricket (귀뚜라미). The clearly visible ears, located on the legs, and absence of wings distinguish it from the grasshopper.

Interesting links and sources:

Telling a grasshopper from a cricket

Fahrenheit 84 – the memi

Grasshoppers

Creative Commons License© Nick Elwood 2010. This work is licenced under a Creative Commons Licence.

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