r/whatsthisbug • • Apr 26 '23

FREQUENTLY ASKED BUGS - Part 1

57 Upvotes

FREQUENTLY ASKED BUGS - Part 2➜

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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 • • 7h ago

ID Request Please I have to know what species this is

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548 Upvotes

Please don’t say house centipede I’m not an idiot. This doesn’t look like the Japanese species which is supposedly the largest and information on house centipedes is painfully limited


r/whatsthisbug • • 4h ago

Just Sharing First time seeing this

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138 Upvotes

This thing fell out of my bbq grill cover. Google says it's a Woolly Bear caterpillar. Never seen one before.


r/whatsthisbug • • 8h ago

ID Request Did I steal drain flies?

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51 Upvotes

Smallest moths I’ve ever seen but super cute. Caught them in a hospital bathroom. If they are drain flies they are 5x the size I’m used to.


r/whatsthisbug • • 12h ago

ID Request Who is this lil guy

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82 Upvotes

Their body shape is interesting, the pincers are cool and the colouration is neat. Had to 10x zoom to get the little details. Found in the desert


r/whatsthisbug • • 2h ago

ID Request What is this weird tiny bug

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7 Upvotes

I found this weird tiny thing on the floor of my parents house in DFW


r/whatsthisbug • • 3h ago

ID Request Hello, found in the top corner of a room. Maybe two inches. Brown and black. Washington State. Alive, gonna put it in a solo cup and take outside. Any ID?

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6 Upvotes

Thanks in advance.


r/whatsthisbug • • 2h ago

ID Request Friend?

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5 Upvotes

I’ve had this little guy in my office for the last few days. I’m in Canberra, Aus and I think he’s a baby praying mantis but unsure


r/whatsthisbug • • 2h ago

ID Request Found inside in east county San Diego. What kind is it?

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4 Upvotes

does anyone know what kind of Scorpion this is?


r/whatsthisbug • • 15h ago

ID Request New England woods, 5mm length, clings well, remains still otherwise (not a crawler)

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39 Upvotes

Hiked yesterday (New England) and found this bug on my head this morning. Driving me crazy trying to figure out what it is. 5mm length. Thanks in advance for any help!


r/whatsthisbug • • 9h ago

ID Request What are the these ants doing on my jalapeños?

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9 Upvotes

Laying eggs? Dont they keep their eggs in their homes?


r/whatsthisbug • • 5h ago

ID Request Hi all, what kind of bug is this 🤔

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5 Upvotes

Found it outside and never seen a roach (?) like this before !


r/whatsthisbug • • 1d ago

ID Request Tell me this isn’t what I think…😵‍💫

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146 Upvotes

Not understanding as we have looked everywhere and found nothing. Just this spare bug, it was on my bathroom curtain. As soon as I got it in the pill bottle it died. If it is what I think it is, what stage was it in? Why in my bathroom? Why just one on my bathroom curtain and why is there no sign of them anywhere else?
Also we don’t go anywhere and haven’t gone anywhere. I’m disabled and my partner is my caretaker, so we don’t go visit people really ever. So I’m just so confused! It’s pretty big for what I thought the size of them to be, if it is what I think. 😵‍💫


r/whatsthisbug • • 23h ago

ID Request These keep turning up around boyfriends shower...

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88 Upvotes

Pretty much what it says in the title, I noticed these things in and around my boyfriend's shower and he doesn't know what they are or where they came from. They're bigger than nats or fruit flies and kind of slow/clumsy fliers. Found one in his bedroom now so it seems like the problem is spreading...


r/whatsthisbug • • 2h ago

ID Request What is this? Found on a bag in my closet. It’s less than 0.5” long and narrow.

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2 Upvotes

r/whatsthisbug • • 9h ago

Just Sharing Saw this gangly fella this morning, after some googling I found out it's an Ophion Variegatus wasp. Oxfordshire, England

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7 Upvotes

r/whatsthisbug • • 5h ago

ID Request Grubby guy

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3 Upvotes

I'm located in NW Oregon state. I think these are coming out of our compost spinner thing after a good rain. About an inch long.

During the summer I also kept seeing large (also about an inch long), black flying insects, perhaps flying ants, or type of wasp..? I don't have a photo unfortunately, but maybe that's helpful for ID if they are different stages of the same bug?

Thanks in advance! :)


r/whatsthisbug • • 18m left

ID Request Are these maggots and how would they get into a sealed jar of dog treats?

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• Upvotes

Thank you in advance, I have not given my dog one of these treats in a couple weeks. I'm hoping I would have noticed the webs or larvae before reaching in and feeding him one.


r/whatsthisbug • • 3h ago

ID Request What caterpillar species is this?

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2 Upvotes

There’s like a bunch of babies in my campus rn- they have like webs?? Silk??? They sometimes hang off of or something?? And they’re literally everywhere- had to move them in higher places so they don’t get squished 🥹

This was taken in Manila, Philippines if location helps ID these guys


r/whatsthisbug • • 5h ago

ID Request What is this bug lol

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3 Upvotes

We have red ants and stuff but I just saw this on my wall and it looks like it has a stinger or something. The two things at the bottom were further apart before I… protected myself. Mainly worried cause I have 3 cats so lmk if I should be worried or not, thanks guys!!


r/whatsthisbug • • 4h ago

ID Request What is this bug, a bunch in my attic

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2 Upvotes

Please help

In southwest montana


r/whatsthisbug • • 9h ago

ID Request Mom seems to think it’s a cockroach. I found it on the stairs and it’s the only one I’ve seen around the house. It moves super slow (Ontario Canada)

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4 Upvotes

r/whatsthisbug • • 51m ago

ID Request Was this a tick? (Central CA)

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• Upvotes

Spotted this on my husband's neck earlier. He sometimes gets skin tags around his collar/shirt seams; these can get irritated, turn a dark red/black color, and come off sometimes so I thought it was that again but since we had been at a park earlier, I wanted to double check it.

I pulled with tweezers (in case it was a tick) and I'm not entirely sure it's a bug because it's mostly smooth margined all around? What looks like they would be legs is only on the one side.

Neither of us have any experiences with ticks so if anyone familiar can let us know, we'd appreciate it! Whatever that is has been put in a ziplock bag just in case, the area has been cleaned, and we'll be keeping an eye on how the area looks/how he feels.


r/whatsthisbug • • 51m ago

ID Request Aralia Fabian tree

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• Upvotes

Kinda looks like fruit fly but they mainly crawl. Found 4 crawling around, they like to crawl around the soil mix area.

What are they?