Tag Archives: Deadliest

Top 10 Deadliest Insects

Though not necessarily the most prolifically deadly animal on earth, insects certainly hold their fair share of the unfortunate demises. Throughout history, the insect has played a major roll in many different actions and reactions ranging from writings in the Bible to golden statues in Egyptian Tombs.

1. Anopheles Mosquito

Anopheles  is a genus of mosquito. There are approximately 460 recognised species: while over 100 can transmit human malaria, only 30-40 commonly transmit parasites of the genus Plasmodium, which cause malaria in humans in endemic areas. Anopheles gambiae is one of the best known, because of its predominant role in the transmission of the most dangerous malaria parasite species – Plasmodium falciparum.

2. Fleas

Flea is the common name for insects of the order Siphonaptera which are wingless insects with mouthparts adapted for piercing skin and sucking blood. Fleas are external parasites, living by hematophagy off the blood of mammals and birds. In the past, it was most commonly supposed that fleas had evolved from the flies, based on similarities of the larvae. Genetic and morphological evidence indicates that they are descendants of the Scorpionfly family Boreidae, which are also flightless; accordingly it is possible that they will eventually be reclassified as a suborder within the Mecoptera. In any case, all these groups seem to represent a clade of closely related insect lineages, for which the names Mecopteroidea and Antliophora have been proposed.

3. Bees

Bees are flying insects closely related to wasps and ants, and are known for their role in pollination and for producing honey and beeswax. Bees are a monophyletic lineage within the superfamily Apoidea, presently classified by the unranked taxon name Anthophila. There are nearly 20,000 known species of bees in seven to nine recognized families, though many are undescribed and the actual number is probably higher. They are found on every continent except Antarctica, in every habitat on the planet that contains insect-pollinated flowering plants.

4. TseTse Fly

Tsetse, sometimes spelled tzetze and also known as tik-tik flies, are large biting flies that inhabit much of mid-continental Africa between the Sahara and the Kalahari deserts. They live by feeding on the blood of vertebrate animals and are the primary biological vectors of trypanosomes, which cause human sleeping sickness and animal trypanosomosis, AKA nagana. Tsetse include all the species in the genus Glossina, which are generally placed in their own family, Glossinidae.

5. Fire Ants



Fire ants are a variety of stinging ants with over 280 species worldwide. They have several common names including ginger ants and tropical fire ants, hormigas bravas or hormigas coloradas, fourmis de feu, Feuerameisen , mod-kun-fai , aka-hi-ari or aka-kami-ari , and Langgam .

6. Locusts

Locust is the swarming phase of short-horned grasshoppers of the family Acrididae. These are species that can breed rapidly under suitable conditions and subsequently become gregarious and migratory. They form bands as nymphs and swarms as adults—both of which can travel great distances, rapidly stripping fields and greatly damaging crops. The origin and apparent extinction of certain species of locust—some of which reached 6 inches (15 cm) in length—are unclear.

7. Wasps

The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that is neither a bee nor ant[1]. Almost every pest insect species has at least one wasp species that preys upon it or parasitizes it, making wasps critically important in natural control of their numbers, or natural biocontrol. Parasitic wasps are increasingly used in agricultural pest control as they prey mostly on pest insects and have little impact on crops.

8. Siafu (African Ants)

Twenty million ants strong, one single colony can ravage the African countryside obliterating everything in their path. When food shortages present themselves, the colony as a whole will march through whatever happens to be in its path in order to acquire sustenance. Though not difficult to avoid, the very young or elderly can find themselves victims of asphyxiation and 20-50 die each year as well as thousands of dollars in foodstuffs damage yearly.

9. Giant Japanese or Asian Hornet

This massive hornet can achieve lengths of 3 inches full grown and has been known, in numbers of only 20 or 30, to decimate an entire hive of honeybees. The sting can be lethal not just by allergic reactions but also due to its many toxins. Here are four interesting things about its sting:
a: Its sting has a higher concentration of the pain-causing chemical called Acetylcholine than any other stinging insect.
b: An enzyme in its venom can dissolve human tissue.
c: Containing at least eight distinctly different chemicals, the venom itself produces one such that actually attracts others of its kind to the victim.
d: Like all other hornets, it can sting repeatedly.

10. Hemiptera – kissing bugs


The hemiptera classification is wide and varied including all of the so-called ‘true bugs’. Most have distinctive ‘sucking’ mouthparts that resemble tubes. Most, in fact, feed on plant sap in one form or another, but a few, such as the kissing bug, feed on blood of larger animals. The bug can transmit Chagas Disease, and it is described in Wiki as follows: “The symptoms of Chagas’ disease vary over the course of the infection. In the early, acute stage symptoms are mild and are usually no more than local swelling at the site of infection. As the disease progresses, over as much as twenty years, the serious chronic symptoms appear, such as heart disease and malformation of the intestines. If untreated, the chronic disease is often fatal. Current drug treatments for this disease are generally unsatisfactory, with the available drugs being highly toxic and often ineffective, particularly in the chronic stage of the disease.”

Top 10 Deadliest Spiders

Spiders are one of the smallest but most lethal creatures. Fear of spiders in some people it is quite reasonable because the spider venom can kill several people or animals at once.

1.Brown Recluse

The brown recluse spider or violin spider, Loxosceles reclusa, is a well-known member of the family Sicariidae. Brown recluse spiders are usually between 6–20 mm, but may grow larger. They may be brown or gray and usually have markings on the dorsal side of their cephalothorax, with a black line coming from it that looks like a violin with the neck of the violin pointing to the rear of the spider, resulting in the nicknames fiddleback spider, brown fiddler or violin spider.

2.Black Widow

Black Widow is a common name of some spiders in the genus Latrodectus – see Black widow spider for a specific list of such spiders.

3.Brazilian Wandering Spider

The Brazilian wandering spiders, armed spiders or banana spiders are a genus of aggressive and highly venomous spiders found in tropical South and Central America. These spiders are members of the Ctenidae family of wandering spiders.

4.Funnel-Web Spiders

The araneomorph funnel-web spiders of the family Agelenidae include the common grass spiders of the genus Agelenopsis, as well as the purportedly venomous European hobo spider, Tegenaria agrestis, which has been introduced into the Pacific Northwest of the United States. Note: The araneomorph funnel-web spider should not to be confused with the funnel-web tarantula and the venomous funnel-web tarantula, both of which are members of the suborder Mygalomorphae. The venomous funnel-web tarantulas include the infamous Sydney funnel-web spider.

5.Mouse Spiders

Mouse spiders are spiders of the genus Missulena, in the mygalomorph family Actinopodidae. There are 11 known species in this genus, all but one of which are indigenous to Australia. One species, M. tussulena, is found in Chile. The name derives from an old belief, now known to be false, that the spiders dig deep burrows similar to those of mice. There is evidence that the bite of a mouse spider is potentially as serious as that of an Australasian funnel-web spider; however recorded envenomings by this spider are rare. Funnel-web antivenom has been found to be an effective treatment for serious bites.

6.Red Back Spider

The Redback spider  is a potentially dangerous spider native to Australia that resembles a Black widow spider. It is a member of the genus Latrodectus or the widow family of spiders, which are found throughout the world. The female is easily recognisable by its black body with prominent red stripe on the upper side  of its abdomen. Females have a body length of about a centimetre while the male is smaller, being only 3 to 4 millimetres long. The Redback spider is one of few arachnids which display sexual cannibalism while mating.

7.Wolf Spider

Wolf spiders are members of the family Lycosidae, from the Greek word  meaning “wolf”. They are robust and agile hunters with good eyesight. They live mostly solitary lives and hunt alone. Some are opportunistic wanderer hunters, pouncing upon prey as they find it or chasing it over short distances. Others lie in wait for passing prey, often from or near the mouth of a burrow. Wolf spiders resemble Nursery web spiders, but they carry their egg sacs by attaching them to their spinnerets. Wolf spiders have two eyes out of eight that are large and prominent. The eight eyes of the Nursery web spiders are all of approximately equal size.

8.Goliath Birdeater Tarantula

The Goliath Bird-eater Spider is an arachnid belonging to the tarantula group, Theraphosidae, and is considered to be the second largest  spider  in the world. The spider was named by explorers from the Victorian era, who witnessed one eating a hummingbird.

9.Sac Spider

The sac spiders of the family Clubionidae have a very confusing taxonomic history. Once this family was a large catch-all taxon for a large group of disparate collection of spiders, similar only in that they had eight legs arranged in two rows, conical anterior spinnerets that touched and were wandering predators that built silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks. These are now recognized to include several families, some of which are more closely related to the three-clawed spiders, like lynx and wolf spiders, than to true “clubionoids.

10.Hobo Spider

The hobo spider  is a member of the genus of spiders known colloquially as funnel web spiders. It is one of a small number of spiders in North America whose bites are generally considered to be medically significant. Individuals construct a funnel-shaped structure of silk sheeting and lie in wait at the small end of the funnel for prey insects to blunder onto their webs. Hobo spiders sometimes build their webs in or around human habitations. Although this species of spider has a reputation for aggressiveness, they will normally avoid contact with humans. Most bites occur when the spider is accidentally crushed or squeezed by a human. The spider’s venom is strong enough to cause considerable local pain and possibly necrosis.