WORDS & PHOTOS: JOHN R. DEAN & SAM N. DEANJohn R. DeanSam N. DeanNice to eat you The tale of dubious friendship in the Scottish HighlandsThe west coast of Scotland offers some of the finest paddling in the world. It also offers some of the most persistent, organised, and frankly personal insect harassment youre ever likely to experience.The west of Scotland offers world-class opportunities for sea kayaking, canoeing, white water kayaking, packrafting and paddleboarding across sea lochs, islands, inland lochs, and rivers. It is, quite simply, one of the finest paddling destinations on the planet.However in summer, a hidden enemy can creep into your trip and quietly turn bliss into mild misery.The good news? This adversary only appears at certain times of day. Better still, we have ways some elegant, some slightly desperate to deal with it.What are we describing?The Scottish midge.The Highland midge (Culicoides impunctatus), or meanbh-chuileag in Gaelic (loosely translating as tiny fly), is a biting insect just 2-3 mm long with a wingspan of about 1.4 mm. Tiny, yes. Harmless-looking, perhaps. But underestimate it at your peril.In the Highlands, this species is responsible for roughly 90% of bites. It is not alone there are around 1,400 Culicoides species worldwide (everywhere except Antarctica, which should tell you something about Antarctica), with about 40 found in the UK.Among its relatives are:Culicoides halophilus (the coastal midge), loitering in salt marshes.Culicoides nubeculosus (the farm midge), more interested in livestock than you.Culicoides obsoletus (the garden midge), common in towns and lowlands.But it is the Highland midge that earns the reputation and the resentment.Why here? Because the Scottish Highlands are, from a midges perspective, paradise. Extensive peat bogs, high rainfall, cool temperatures, sheltered glens, and an all-you-can-eat buffet of deer, cattle and unfortunately you! Only the females bite. Sadly, they do not wear name badges.And they do not travel alone. When midges arrive, they arrive in numbers tens, hundreds, sometimes what feels like several million turning a peaceful evening into something resembling a low-level biological assault.Why Midges Bite (and Why They Like You More Than Your Friend)Midges dont just stumble across you. They are surprisingly sophisticated in how they find a meal.Carbon dioxide (CO2)This is their primary homing signal. They can detect CO2from breath at distances of up to 200 metres. So, breathing is a problem. Talking makes it worse. Puffing uphill with a loaded kayak? You might as well send out invitations. This is why they love your head.Body odour and skin chemistryCompounds such as lactic acid, ammonia, and fatty acids vary between individuals. Genetics, diet, skin microbiome all play a role. This explains the classic scenario: one person being eaten alive while their companion stands smug and untouched. Science calls this variation. The victim calls it deeply unfair.HeatMidges detect warmth. The face, neck, wrists and ankles are prime targets. Exercise, sunshine, and alcohol all increase skin temperature and therefore your appeal. Yes, that relaxed evening drink may be working against you.ColourMidges are drawn to dark colours black, navy, dark green, red. Light shades such as beige, khaki, or grey are less attractive. So, if youve packed all your kit in tasteful black youve made a tactical error.Humidity and still airThey thrive in warm, damp, windless conditions especially after rain and near bogs, lochs, and woodland. Introduce a breeze of just 5-6 mph and their enthusiasm drops dramatically. In short: wind is your friend.MovementMovement and vibration help them locate you. Standing still doesnt help either, unfortunately.Livestock and large mammalsMidges evolved to feed on deer, cattle, and sheep. Humans are simply convenient substitutesslightly less hairy, marginally more irritated.How they feed (brace yourself)Midges dont bite in the polite mosquito sense. They cut. Using scissor-like mouthparts, they slice the skin and drink from the small pool of blood that forms. Their saliva prevents clotting and triggers the familiar itchy lump. As a final flourish, they release pheromones that attract other females to join in.In short: once youve been discovered, youve effectively opened a restaurant. And since only females bite, you are directly contributing to the next generation. Youre welcome.Life Cycle (How the Problem Persists)The Highland midge operates on a four-stage life cycle, typically completed in 6-10 weeks.Eggs: Laid in damp soil, peat, marshes, or decaying vegetation. A female can produce 30-100 eggs and can lay her first batch without even needing a blood meal. Efficient.Larvae: Develop in moist, organic-rich soil, feeding on microorganisms. This stage lasts around 3-4 weeks and is the longest.Pupae: A brief, non-feeding stage lasting 2-3 days.Adults: Emerge in summer (JuneAugust), living 1-2 weeks. Females require blood to produce eggs; males, sensibly, stick to nectar.They overwinter as larvae and restart in spring. In warm summers, multiple generations can occurbecause one wave clearly isnt enough.The inconvenient truth: Midges are usefulReluctantly, it must be acknowledged that midges are not purely agents of misery. They are a key food source for bats, birds, spiders, and other insects. Remove midges and you disrupt entire food webs.Their larvae contribute to nutrient cycling, breaking down organic matter in peatlands and supporting microbial ecosystems. They play a role albeit small in pollination, particularly in harsh wetland environments where every pollinator counts.They are also bioindicators, signalling healthy, undisturbed peatland systems.And perhaps most importantly, they act as a subtle but effective form of land-use management. Large numbers of midges discourage overdevelopment and excessive human intrusion.In other words, they are guardians of wilderness. Irritating, persistent, airborne guardians.A historical irritationMidges are not a modern inconvenience.Queen Victoria reportedly abandoned a Highland picnic in 1872 after being half-devoured. Even royalty, it seems, is not immune.Another tale possibly more folklore than fact suggests a British general misheard the Gaelic word chuileag and coined hooligans after repeated encounters with biting swarms. Whether true or not, the sentiment feels accurate.Seasonality: when to expect troubleMidge season runs from late May to September, with peak intensity from mid-June to August.They are crepuscular most active at dawn and dusk. Calm, humid evenings are their ideal operating window. Warm, windless weather is perfect for midges. Add even a modest breeze and their activity collapses.There are now midge forecasts based on trap data and weather patterns because, frankly, this level of planning has become necessary. And yes, the most effective way to avoid midges is still not to visit Scotland. But that would be missing the point entirely.Camping: How not to become dinnerThe golden rule: seek exposure. Midges cannot cope with wind.Choose your campsite wiselyAvoid sheltered woodland, boggy ground, and still water. Look for exposed ridges, open ground, or coastal sites with airflow.Time your activityCook, pitch, and rest during breezy daylight hours. Avoid lingering at dawn and dusk.Cover upLight-coloured, loose-fitting clothing is best. Add a fine-mesh head net ideally worn over a hat so it doesnt cling to your face. Bug shirts are even better.Defend your tentYou need very fine mesh (less than 1.0 mm, ideally 0.6-0.8 mm). Standard mosquito netting simply wont do.Keep movingMidges are persistent, but not athletic. A short walk can often restore sanity.Top tips for paddlersHeres the good news: paddlers have an advantage. Midges struggle with moving air. Once youre on the water, youre largely safe. The danger lies in the margins launching, landing, and stopping.1. Use the waterKeep moving. Even gentle paddling disrupts them. If necessary, head 50100 m offshore for instant relief.2. Time it rightMid-morning to mid-afternoon is best. Avoid still, humid dawns and dusks.3. Dress strategicallyLight colours, loose layers. Avoid dark, tight fabrics. A paddling jacket is excellent protection.4. Protect your headCarry a midge net in your buoyancy aid. Put it on before landing, not after youve been introduced.5. Launch and land with purposeChoose exposed, breezy shorelines. Minimise standing around. Get in, get out, move on.Midge deterrents: what actually worksApply repellents strategically ankles, wrists, neck, behind the ears. Avoid hands and anything that touches your paddle.Chemical repellentsDEET, Picaridin, and IR3535 are all effective. They work, but may irritate skin or damage some materials.Natural alternativesCitriodiol (PMD), citronella, lavender, peppermint, tea tree, and bog myrtle products are widely used. Avon Skin So Soft has a loyal following though perhaps more anecdotal than scientific.Other optionsCO2-based traps and devices such as Thermacell units can create small protected zones. Coils and candles may help, but require care.Dietary approachesGarlic, vinegar, vitamin B are debated. Results vary from, Works brilliantly to Absolutely not.When (not if) you get bittenYou will get bitten. Accept it early it helps psychologically. Keep bites clean and resist scratching (easier said than done).Treatments include:Hydrocortisone cream.Antihistamine creams.Calamine lotion.Tea tree oil.Oral antihistamines for widespread irritation.Final thoughtsThe strategy is simple: find wind, avoid stillness, cover up, and keep moving. Do that, and the Scottish midge becomes manageable if not entirely lovable.And if you arrive in the Highlands to sunshine and a gentle breeze, you may feel youve wasted ten minutes reading this. But if the air is still, the light is fading, and the first faint cloud appears around your headYoull be very glad you did.