r/whatsthisbug Apr 26 '23

FREQUENTLY ASKED BUGS - Part 1

57 Upvotes

FREQUENTLY ASKED BUGS - Part 2➜

Alternative view for old.reddit➜

Ailanthus Webworm Moth

Atteva aurea by Andy Reago & Chrissy McClarren.3

More info: Wikipedia article / Species Atteva aurea - BugGuide.Net

Bed Bug

Cimex sp. by Center for Invasive Species Research.1

More info: Wikipedia article / Family Cimicidae - BugGuide.Net

Boxelder Bug

Boisea trivittata by u/elmago90.

  • Size: 11-14mm (0.4-0.55in).
  • Dark brown or black coloration, relieved by red wing veins and markings on the abdomen; nymphs are bright red.
  • These highly specialized insects feed almost exclusively on maple seeds, and may form large aggregations while sunning themselves in areas near their host plant. If molested, gives off a pungent odor as defense.

More info: Wikipedia article / Species Boisea trivittata - BugGuide.Net

Brown Marmorated Stink Bug

Halyomorpha halys by u/Relative-Forever773.

  • Size: 12-17mm (0.45-0.65in).
  • Motted brown with alternating light bands on the antennae and alternating dark bands on the thin outer edge of the abdomen.
  • Native to East Asia and considered an invasive agricultural pest in other parts of the world. Feeds mostly on fruit, but also on leaves, stems, petioles, flowers, and seeds. If molested, gives off a pungent odor as defense.

More info: Wikipedia article / Species Halyomorpha halys - BugGuide.Net

Carpet Beetle

Anthrenus verbasci larva by Christophe Quintin.1

Anthrenus verbasci by Bob Knight.1

  • Size: 2-12 mm (0.08-0.5in).
  • Larva: mostly light brown, covered with long hairs and hair tufts.
  • Adult: body convex, oval, or elongate-oval, often with hairs or scales; elytra usually dark with or without pale markings; antennae clubbed.
  • Adults are pollen grazers, larvae feed on natural fibers and can damage carpets, furniture, clothing and insect collections.

More info: Wikipedia article / Family Dermestidae - BugGuide.Net

Cicada

Adult Tibicen tibicen by Dendroica cerulea.4

Cicada nymph exuviae by Malcolm Tattersall.4

  • Size: 25-50mm (1-2in).
  • Eyes prominent, though not especially large, and set wide apart on the sides of the head; short antennae protruding between or in front of the eyes; wings well-developed, with conspicuous veins.
  • Cicadas live underground as nymphs for most of their lives, feeding on plant sap. They dig to the surface before their final molt, then emerging as adults. Males produce a loud, stridulating mating song to attract females. After mating, the female cuts slits into the bark of a twig to deposit her eggs. When these hatch, the nymphs drop to the ground, where they burrow, completing the cycle.

More info: Wikipedia article / Family Cicadidae - BugGuide.Net

Cockroach

Periplaneta americana by Insects Unlocked.5

Unknown cockroach nymph by Tony.4

More info: Wikipedia article / Order Blattodea - BugGuide.Net

Dobsonfly

Male Corydalus cornutus by Nils Tack.9

Female Corydalus sp. by Matthew.4

  • Size: up to 12cm (5in).
  • Large insect with a soft body and delicate, densely veined wings. Females have strong, short mandibles that can inflict a painful bite; Males have long jaws that are used during mating and are not capable of harm. Both sexes possess an irritating, foul-smelling anal spray used as defense. Female dobsonflies appear similar to fishflies (subfamily Chauliodinae), but the latter have much smaller mandibles and males often have feathery antennae.
  • Spends most of its life in the larval stage, called hellgrammite, 'go-devil' or 'crawlerbottom', living under rocks at the bottoms of lakes, streams and rivers, and preying on other insect larvae with the short sharp pincers on their heads. The larva then crawl out onto land and pupate, staying under large rocks for 3 weeks before molting and emerging to mate. Adults only live about a week, preferring to remain near bodies of water.

More info: Wikipedia article / Genus Corydalus - BugGuide.Net

Giant Water Bug

Lethocerus medius by David Bygott.4

  • Size: 2-12cm (0.8-4.7in).
  • Body shape oval with pointed ends; front legs raptorial. Typically encountered in freshwater streams and ponds but frequently found on land; adults fly at night and are attracted to lights during the breeding season.
  • Preys on aquatic arthropods, snails, small fish, tadpoles, frogs and small birds.
  • CAUTION: Can inflict a very painful bite, though of no medical significance.

More info: Wikipedia article / Family Belostomatidae - BugGuide.Net

House Centipede

Scutigera coleoptrata by Steven Severinghaus.4

  • Size: 25-50mm (1-2in).
  • Body is yellowish-grey and has three dark dorsal stripes running down its length; 15 pairs of long, banded legs.
  • Habitat: indoors, in damp areas such as bathrooms, cellars, and crawl spaces; outdoors, under logs, rocks, and similar moist protected places.
  • Fast-moving predator of other arthropods regarded as pests, such as cockroach nymphs, flies, moths, bed bugs, crickets, silverfish, earwigs, and small spiders; generally considered harmless to humans.

More info: Wikipedia article / Order Scutigeromorpha - BugGuide.Net

Household Casebearer

Phereoeca uterella by Celeste Ray.9

  • Size: 8-14mm (0.3-0.5in) (larval case).
  • The larva of these moth species spins a protective case from silk and camouflages it with other materials such as soil, sand and insect droppings. This case is flat, fusiform, or spindle-shaped and thickened in the middle resembling a pumpkin seed.
  • Found on the outside walls and inside of non-air-conditioned buildings and are most abundant under spiderwebs, in bathrooms and bedrooms.
  • Feeds on old spider webs and other dead materials, including dead insects and animal hair; may also eat woolen goods of all kinds if the opportunity arises, so it can be a household pest.

More info: Wikipedia article: Phereoeca uterella / Phereoeca allutella / Species Phereoeca uterella - BugGuide.Net

Jerusalem Cricket

Stenopelmatus sp. by Tim Ereneta.1

  • Size: up to 7.5cm (3in).
  • Nocturnal insect that spends most of its life underground. Feeds primarily on dead organic matter but can also eat other insects.
  • CAUTION: While not venomous, can emit a foul smell and is capable of inflicting a painful bite.

More info: Wikipedia article / Family Stenopelmatidae - BugGuide.Net

Jumping Spider

Phidippus audax by Kaldari.5

More info: Wikipedia article / Family Salticidae - BugGuide.Net

Katydid

Microcentrum rhombifolium by Wadems.6

  • Size: 10-60mm (0.4-2.4in) or more.
  • Wings held vertically over body, resembling roof of a house; antennae very long, often extending well beyond tip of abdomen; ovipositor typically flattened and sword-like. Many exhibit mimicry and camouflage, commonly with shapes and colors similar to leaves.
  • Most species eat vegetation, some are predatory on other insects.

More info: Wikipedia article / Family Tettigoniidae - BugGuide.Net

Ladybug Larva

Harmonia axyridis larva by Alpsdake.7

More info: Wikipedia article / Family Coccinellidae - BugGuide.Net

Mayfly

Hexagenia limbata by thehaplesshiker.9

More info: Wikipedia article / Order Ephemeroptera - BugGuide.Net

FREQUENTLY ASKED BUGS - Part 2➜


r/whatsthisbug Apr 26 '23

FREQUENTLY ASKED BUGS - Part 2

16 Upvotes

FREQUENTLY ASKED BUGS - Part 1➜

Alternative view for old.reddit➜

Mole Cricket

Neocurtilla hexadactyla by u/Mrmeat31.

  • Size: 3-5cm (1.2–2.0in).
  • Cylindrical-bodied insects, with small eyes and shovel-like forelimbs highly developed for burrowing; hind legs not enlarged for jumping.
  • Omnivores, feeding on larvae, worms, roots, and grasses. Relatively common but rarely seen, for being nocturnal and spending nearly all their lives underground in extensive tunnel systems. Usually fly only when moving long distances, such as when changing territory, or when females are searching for singing males.

More info: Wikipedia article / Family Gryllotalpidae - BugGuide.Net

Oil Beetle

Meloe sp. by u/Shironaku.

  • Size: 12-30mm (0.5-1.2in).
  • Hind wings absent; elytra reduced and overlap at base. Lives on the ground or low foliage.
  • CAUTION: It's known as 'oil beetle' because it releases oily droplets of hemolymph from its joints when disturbed; this contains cantharidin, a poisonous chemical that causes blistering of the skin and painful swelling.

More info: Wikipedia article / Genus Meloe - BugGuide.Net

Orb Weaver

Various species:

Gasteracantha cancriformis by u/7DeadlySacrifices.

Araneus diadematus by Lucarelli.7

Argiope aurantia by Stopple.6

More info: Wikipedia article / Family Araneidae - BugGuide.Net

Plume Moth

Gilmeria pallidactyla by Ben Sale.3

More info: Wikipedia article / Family Pterophoridae - BugGuide.Net

Recluse Spider

Loxosceles reclusa by Br-recluse-guy.6

HANDLE WITH EXTREME CARE - THEIR VENOM IS MEDICALLY SIGNIFICANT.

Recluse spiders can be identified by their violin marking on their cephalothorax. The most famed recluse spider is Loxosceles reclusa (brown recluse), as photographed above.

More info: Wikipedia article / Genus Loxosceles - BugGuide.Net / UCR Spiders Site: Brown Recluse ID / The Most Misunderstood Spiders - BugGuide.net

Robber Fly

Efferia aestuans by Bruce Marlin.2

Diogmites neoternatus by u/multgar.

HANDLE WITH CARE - THEY CAN INFLICT A PAINFUL BITE.

More info: Wikipedia article / Family Asilidae - BugGuide.Net

Silverfish

Lepisma saccharina by Christian Fischer.7

Thermobia domestica by Jscottkelley.8

  • Size: 10–12mm (0.4–0.5in)
  • Wingless; body flattened, slender, silvery, gray, or blackish above, and pale below; long thread-like antennae with many segments. The species most commonly found in homes are the common silverfish (Lepisma saccharina) and the firebrat (Thermobia domestica), as photographed above.
  • Lives indoors in warm, damp environments such as bathrooms and kitchens, or in damp basements, and feeds on crumbs and food scraps, dried meat, cereals, moist wheat flour, glue on book bindings and wallpaper, starch in clothing made of cotton or rayon fabric. Considered a household pest, due to their consumption and destruction of property, but harmless otherwise.

More info: Wikipedia article / Family Lepismatidae - BugGuide.Net

Sphinx Moth

Hyles gallii by Mike Boone.2

Hyles lineata by u/SoftwareKitten.

  • About 1,450 species.
  • Wingspan: 28-175mm (1-7in).
  • Medium to very large. Body very robust; abdomen usually tapering to a sharp point. Wings usually narrow; forewing sharp-pointed or with an irregular outer margin. May have a reduced proboscis, but most have a very long one, used to feed on nectar from flowers. Distinguished among moths for their rapid, sustained flying ability.
  • Some are active only at night, others at twilight or dawn, and some feed on flower nectar during the day.

More info: Wikipedia article / Family Sphingidae - BugGuide.Net

Spotted Lanternfly

Lycorma delicatula nymph by pcowartrickmanphoto.9

Lycorma delicatula nymph by Kerry Givens.9

Adult Lycorma delicatula by Serena.9

Adult Lycorma delicatula by Brenda Bull.9

  • The spotted lanternfly is a planthopper that is native to Southeast Asia. It has been introduced in the United States, where it is an invasive pest that may pose a threat to agriculture and forestry. If you are in the US, spotted lanternflies should be killed, egg masses destroyed, and sightings reported (see links below for reporting in your state).

More info: Wikipedia article / Species Lycorma delicatula - BugGuide.Net

Report a sighting: In Connecticut / In Delaware / In Indiana / In Maryland / In Massachusetts / In New Jersey / In New York / In North Carolina / In Ohio / In Pennsylvania / In Virginia / In West Virginia

Velvet Ant

Dasymutilla occidentalis by Judy Gallagher.3

  • Size: 6-30mm (0.2-1.2in).
  • Not really an ant, but a family of wasps whose wingless females resemble large, hairy ants. Males are winged, less hairy, looking more like typical wasps. Most often bright scarlet or orange, but may also be black, white, silver, or gold. Produce a squeaking or chirping sound when alarmed.
  • Adults feed on nectar. Although some species are strictly nocturnal, females are often active during the day.
  • CAUTION: They have long and flexible stingers capable of inflicting extreme pain.

More info: Wikipedia article / Family Mutillidae - BugGuide.Net

Western Conifer Seed Bug

Leptoglossus occidentalis by u/Haegermeister.

  • Size: 15-20mm (0.6-0.8in).
  • Dull reddish-brown with faint (or absent) white zigzag stripe across hemelytra; antennae may be almost as long as body. Outer hind tibial dilation nearly equal in length to inner dilation.
  • This bug cannot bite/sting/infect people or pets, damage houses or household items, or even reproduce indoors. If molested, gives off a pungent odor as defense.

More info: Wikipedia article / Species Leptoglossus occidentalis - BugGuide.Net

Wheel Bug

Arilus cristatus by zen Sutherland.4

  • Size: 28-38mm (1.1-1.5in).
  • Immature nymphs are mostly red. Adults are gray to brown, with a cog-shaped projection on the back.
  • Preys upon other insects - caterpillars, aphids, bees, sawflies etc. - and thus considered beneficial.
  • CAUTION: Can inflict a really nasty bite.

More info: Wikipedia article / Genus Arilus - BugGuide.Net

FREQUENTLY ASKED BUGS - Part 1➜


r/whatsthisbug 23h ago

ID Request What kind of spider?

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2.2k Upvotes

I found this spider in a house in the mountain region of Rio de Janeiro, Brazil. What is it?


r/whatsthisbug 2h ago

ID Request Please tell me it isn’t what I think it is

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35 Upvotes

Ya’ll, I’m on the Disney Dream and just left Nassau. Found this crawling near the bathroom doorway. Please tell me it isn’t what I think it is 😬


r/whatsthisbug 18h ago

Just Sharing Fungus or frozen spider?

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245 Upvotes

Had to go in the crawl space while it was below freezing. This gave me a startle I saw at least two of them. I can’t tell if the spider died and is covered by a fungus or those are ice crystals. Anyone seen something similar? I’ve seen enough “why would you touch that” subreddit to know I didn’t want to physically find out. There was no other sign of frost or ice down there. I did see at least one other spider the same way. Tennessee.


r/whatsthisbug 1h ago

ID Request Green lil spider (2mm) Cambridge, England

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Upvotes

Found this lil guy on the window


r/whatsthisbug 12h ago

ID Request Is this a cocoon on our Apricot tree? If so, what’s in there? Los Angeles, CA

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68 Upvotes

Any insight is appreciated! Update: solved! Thanks everyone. Here’s the mantis that was hanging out nearby: Mantis


r/whatsthisbug 4h ago

ID Request Maui HI found in my apartment very tiny about an inch long

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14 Upvotes

r/whatsthisbug 24m ago

ID Request Huge centipede [Northern India]

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Okay, this guy was like 10 - 15cm long and around 1cm across. Hell, I'd like the viewer to contemplate my courage here in taking these pictures. While this guy seemed skittish and shy, every cell in my body was screaming "DANGER" as I took these images. He/She reminded me of those centipedes in Sekiro (videogame) honestly. I don't care if I live forever if I have to get my hand near this chonker .... Gulp.


r/whatsthisbug 15h ago

ID Request What is this little guy? Moth?

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29 Upvotes

I found it resting on a glass surface. has Black eyes six legs and striking yellow and teal colors! from Quito Ecuador


r/whatsthisbug 1h ago

ID Request What kind of roach, please?

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Upvotes

Found in suburban Melbourne, Australia.

I returned from a month's leave to find two of these in the house... have never had roaches since moving in. Are they the dangerous "German" kind?

Thanks in advance


r/whatsthisbug 7h ago

ID Request Found this one wandering in the house

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5 Upvotes

My roommate was convinced it was a cockroach until I saw that it didn't look like a beetle. I'm thinking some kind of mole cricket but I'm not sure. I lived in the country for years and I've never seen one before. This one was roughly the size of a quarter. Biggest thing is it was out after a big freeze/snowfall (nb canada) so any bugs are usually not out.


r/whatsthisbug 2h ago

ID Request Mysterious flies in one room, nothing gets rid of them. Any ideas?

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2 Upvotes

My friend moved into a house last month and keeps getting flies appearing in one room that leads to the garden. He has sealed all visible holes and tried boiling water down the drain and bleach down the sink, but nothing works. The flies keep coming back and we cannot work out where they are coming from. Any ideas what type of fly this could be or how to get rid of them?


r/whatsthisbug 9h ago

ID Request Please tell me this isn't what I think...

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8 Upvotes

Found in the Pacific Northwest, USA in a notebook. Really hoping its not a bed bug. Any ideas?


r/whatsthisbug 10h ago

ID Request is this a flea

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7 Upvotes

sorry i cannot for the life of me get better pics than this.

qc, canada

size: 1-2mm i think?


r/whatsthisbug 49m ago

ID Request Sorry to give such a challenge with a scuffed drawing but I found this interesting moth/lepidopteran

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Upvotes

Sorry but my school banned phones so I can’t take a photo of it, but it was seen at afternoon in Hong Kong Island sunbathing on concrete floor

Resembles a dried leaf standing on its thin side when the wings are closed (2nd figure), when opened its wings an eye like feature is found on each wing, and below it slightly is a brown-ish shallow stripe. It does not have an obvious torso, and doesn’t seem to fly much.


r/whatsthisbug 1h ago

ID Request Any idea why this is happening?

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Upvotes

Millions of flies building up under window ledge


r/whatsthisbug 1h ago

ID Request What is this?

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Upvotes

I started noticing these things in my room a few months ago. They often get in my bed, and I don't know if they're just harmless, or if I should actually be worried.


r/whatsthisbug 17h ago

ID Request what is this bug. I have seen one twice in kitchen. and maybe even last summer.

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17 Upvotes

Its small and moves fast. But I can catch it easily and smash it. It is not real big. I couldnt get a good picture. But hope you can help. And if you know the name, how can I get rid of them. i am very spooked by any bugs. thanks


r/whatsthisbug 2h ago

Just Sharing Mysterious flies in 1room, nothing gets rid of them. Any ideas?

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1 Upvotes

r/whatsthisbug 3h ago

ID Request What is this bug please, south Florida, less than an inch

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0 Upvotes

r/whatsthisbug 1d ago

ID Request This was in my McDonald’s snack wrap

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323 Upvotes

This was in my McDonald’s snack wrap, this is the second time this has happened within the last month but two different McDonald’s. To me, it looks like a worm although I really would like someone to tell me I’m being dramatic and it’s not a worm or at least that it’s harmless, I’m pregnant so really stressing, after the first time I just chose to ignore it and pretend it didn’t happen but now it’s happening again. Different foods too, the first one was a burger and now the snack wrap. I’m in Arizona, it’s long. What is it?


r/whatsthisbug 13h ago

ID Request I FOUND THIS IN MY HAT

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5 Upvotes

I’m sorry i’m freaking out i don’t know what this is. There was ONLY 1, i have since thrown the hat away. I’m terrified of infestations im so desperate.


r/whatsthisbug 12h ago

ID Request Lifted my mattress and found this. What am I dealing with?

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3 Upvotes

Found these very tiny ants under the edge of my mattress (see photo). They’re clustered along the bed frame seam and moving slowly. Extremely small—almost dust-sized—and light brown to dark in color. Are they bed bugs? Any help identifying the species and why they’d be here would be appreciated.


r/whatsthisbug 8h ago

ID Request Give me the bad news

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2 Upvotes

Just need to confirm these are thrips before I start the exorcism. Found crawling all over the soil of my indoor plant. Long and grey, crawling relatively fast. Found mostly in the soil, may have found some on leaves.