#corixidae

[jenfoundabug]

Unknown species of water boatman (family Corixidae), northern California, US

These bugs (actual bugs, i.e. Hemiptera) use their legs as oars to swim around. Most, but not all, species live in freshwater. This family contains pretty much every common eating habit - herbivores, carnivores, detrivores, and omnivores.

I found this one in the pool btw.

[every-day-creechur]

Sigara bellula

A type of water boatman, an aquatic insect, found in Japan, Korea, China, and Taiwan. It may feed on algae and aquatic plants.

image by howp_izumo

[bryoinformatics]

Had a fun blacklighting session last night with the amateur entomologist group, here are a few of my observation pics In order: - A cute, lichen-looking Epinotia I wasn't able to ID to species - Ligyrus (formerly Tomerus) relictus, one of the only dynastinae (rhinoceros beetles) found where I live - Catocala sp., photo wasn't great unfortunately so I'm not sure which out of 2 possible species it is - Habrosyne scripta, fairly common but a beautiful drepanid that's always fun to see - Cisseps fulvicollis, smaller lookalike of the virginia ctenucha - Ischnura verticalis - very common species but I don't often see odonates at light traps - Tropisternus lateralis, a hydrophilid, this species in particular looks a lot like some dytiscids to me but the clubbed antennae are a surefire giveaway for hydrophilidae - Corixidae sp. - Parapoynx badiusalis, good example of how cute crambids are - A really cute ichneumonid, but probably not identifiable from photo - Argyresthia calliphanes - pay attention to micromoths! So many of them are absolutely stunning - Nemapogon sp. (maybe granella?) - Ennomos magnaria - Elophila icciusalis - Cerastipsocus venosus - new species for me, their common name is "tree cattle" and the clusters they form on trees get called herds. Felt really big for a psocodean The area had a lot of habitat variety, with multiple light traps being set near a wetland, forested areas (mainly yellow birch with some other hardwoods, and conifers- mostly balsam fir) and a sandpit. I have a lot more but I also have specimens to get around to pinning so I won't spend too long on posts haha, here's some uncropped photos of the sheets though

[drhoz]

#3378 - Micronecta sp. - Pygmy Water Boatmen

A genus of aquatic predatory bugs in the family Micronectidae, who used to be a subfamily of the Corixidae.

The genus' main claim to fame is the stridulatory courtship song of Micronecta scholtzi . Which they sing with their penis. The relevant part is narrower than a human hair. The song still reachs almost 100 decibels.

Scientists are still baffled that they can make such incredible noise with such a tiny organ, which just goes to show that scientists can be very cruel.

Herdsman Lake, Perth.

[slightlysimian]

I imagine for ground bugs, if they have to take large distances across lakes, different water bugs take them back and forth through the waters safely and quickly but for a fee. The different aquatic insects are the boat traveling of this world you have created. Idk. Sounds fun to me

Sounds like the realm of the raft spider or water boatman

[drawingtutorials101]

Water Boatman with Pencils

[drhoz]

#2565 - Sigara sp.

A large genus of Water Boatmen, found in many parts of the world. Some species live in hypersaline lakes. This one was in the same pool are the Riffle Bugs.

Unusually for aquatic bugs, some Corixids are herbivorous, but many are omnivores, some are scavengers, and some are fully carnivorous.

Eggs are laid underwater on any suitable substrate.

St Arnaud, Southern Alps, New Zealand

[drhoz]

Sigara nigrolineata, Corixidae