Note that「winter swarm of insects」is a bit strange, since during winter most (but not all) insects starve or freeze to death, are hibernating under soil or tree bark or leaf litter or rocks, or have entered a diapause state. Refers to a KATYDID, a BUSH CRICKET (crickets are not grasshoppers, technically), about 8,000 various animal species with spread feet that are quite obvious.「Head crotch, [hind] spread feet with two」and「multiple loose and dripping orifices」for procreating「many insects」…although most species live in the tropics, the top element is the「winter」season which is generally cooler but seems not to be referring to a season in this case: instead, a male animal's「two testes between spread feet with head」also must remain cooler than other body parts in order to produce viable sperm:「katydids or bush-crickets…more than 6,400 species…more closely related to crickets and weta than to grasshoppers. Many tettigoniids exhibit mimicry and camouflage, commonly with shapes and colors similar to leaves [source of the fig leaf covering over the genitals, perhaps?]. …The males provide a nuptial gift for the females in the form of a spermatophylax, a body attached to the males' spermatophore which is consumed by the female [the female swallows the semen]. …The reproductive behavior of bush crickets has been studied in great depth. Studies conducted…found that the Tuberous Bushcricket (Platycleis affinis) has the largest testes in proportion to body mass of any animal recorded. They account for 14% of the insect's body mass and are thought to enable a fast re-mating rate [i.e., a swarm of insects clusterfucking].」
　　[　https://en.wikipedia.org/wiki/Tettigoniidae 2013-09-14　]　
　Element 䖵 may then refer to these two matings, as「loose and dripping in vulva」of「insect」and then doing that again. Not all female BUSH CRICKETS actually possess a vulva, so the reference may be somewhat metaphorical in this case. Nevertheless, the thought of「leaping with shrill chirps into a bush, or two」may apply instead during a human clusterfuck, naturally.

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: (grasshopper); Gampsocleis mikado
Unihan extended: katydid
EDRDG: grasshopper