Bonus pics!

Here are a bunch of old pics previously in the deleted Gallery; I have also added a carabid pic from this winter and a long-lost pic of the ironclad

Pholcid

Hoplia

Very likely Calathus

Pillbug and small ironclad (from “winter beetle hunting” post)

The world is a strange place

I have performed several more experiments with brown widows and pholcids; none of them were particularly successful because sooner or later I would send the poor animals running for their lives.

Also, I have decided to quit bugworld for a while! Invertebrate ethics can be extremely weird (see here for several morbidly interesting phenomena, including senility-induced starvation in Carabus) and it is giving me a severe headache. I expect to continue regurgitating advice in entomological discussion circles though; entomology is a dying art and I refuse to completely abandon it.

In the meantime I suppose that I will start posting more non-entomological strange things here (feel free to leave entocomments on my old posts though)

More arachnological comedy

probably a brown widow too, but identity uncertain

I managed to accidentally rip up this specimen’s web after getting not one but two prodding-sticks entangled in it, but it seemed unperturbed. Also, tangerine bits are not exactly the most cooperative of victims, either:

I revive slightly

Tanystoma maculicolle eating honeybee carrion

I have finally been able to access garden areas (mostly) free of small vertebrate droppings! Nighttime arthropod activity has been slow lately; aside from the omnipresent small ants (Linepithema humile?)  very few specimens are active. Even synanthropes like small carabid beetles and fat webbuilding spiders have very sparse visible populations, although I was able to find a very small number of foraging Tanystoma maculicolle and unidentified Calathus-y solid black carabids on many of my nightly trips.




Here is a somewhat blurry video of me trying to convince a small brown widow to kill a tangerine pulp “capsule”; it aligned its mouthparts with the fruit in a manner strongly suggestive of feeding. Unfortunately, it decided to run all the way to its shelter (not shown) after I jiggled the tangerine too violently.

Lost specimen returns (and promptly leaves)

deformed male

Today I caught the missing Scudderia mexicana deformed male! Previous attempts had been thwarted by the animal, which refused to eat my baits and positioned itself in a heavily tangled region where its songs bounced off the leaves (making it impossible to locate by ear).

I found it in a conspicuous position on a palm frond; there was another rose pruning today and this may have disabled its auditory camouflage. Fortunately, the species seems largely oblivious to danger unless touched/blown on and I easily caught and repositioned it to a shorter rose bush. It calmed down and resumed singing very soon after I left it alone with a pollen cluster.




Edit: after the sun set, I saw the katydid slowly approaching a nearby taller bush and then making an attempt to fly onto it. It landed near the tall bush's basal stem (too deformed to fly) but I failed to recapture it. Evidently the short bush is not suitable for some reason; perhaps the animal somehow senses that the foliage is insufficiently dense? I have also previously seen females feeding on the short bush's roses and then promptly fleeing after satiation.

I both win and lose the staring contest

The lethargic Scudderia mexicana  deformed male has vanished for the past several days. I still cannot find it and probably never will.




Assorted news:

I have discovered another "aphideating party" composed mostly of what appear to be adult Cycloneda sanguinea.

Phaneroptera nana lives in my area! I thought it was a small pure green Scudderia sp. until a Bugguide expert corrected me yesterday. Today I took some more pics of nana and have put them below. They are on the same bush as the coccinellids.

Unfortunately I will probably be unable to do any katydid or coccinellid posts for quite some time due to troublesome circumstances relating to the front yard.

Phaneroptera nana male

Same male

Nearby inseminated female

Same female (note spermatophore)

Staring contest continues

News:

Scudderia mexicana deformed-wing male (pictured above) is still doing fine. Yesterday the rosebushes were pruned and nearby resident female(s) have moved elsewhere. The male simply relocated itself to a taller bush next door.

Night walks have been unremarkable; surprisingly, the katydids seem very lethargic even in the darkest hours, although they do wave their antennae near-constantly once the sun sets. The deformed male often assumes an odd nighttime position in which it sits on a tall stem with head down and two front legs slightly in the air; perhaps this is a mate-searching behavior because scarabs have been known to use the same posture. I also did see a few small carabids (mostly Tanystoma maculicolle) and a pillbug with abnormally large yellow splotches, but the carabs failed to perform interesting behaviors.

No more coccinellid posts for a while; their aphids are all gone

I stare vacuously at katydids

deformed Scudderia mexicana male

I have been feeling very lacking in sanity lately, but I have been watching and feeding pollenclusters to this deformed male since Thanksgiving; the local tettigoniid species here are quite lethargic, and rarely move far unless on dispersal flights or alarmed (allowing me to revisit the same wild individuals over amd over again). The male appears to have inseminated a nearby female when I was not looking. I was rather annoyed at having missed the full courtship sequence (I took great pains to relocate females for the male), but here are some more pics:

inseminated mexicana female

female eating spermatophore

clearer spermatophore shot

Coccinellids (as promised!)

Cryptolaemus montrouzieri grub

There are some hibiscus (well, at least they appear identical to hibiscus) bushes in a nearby parking lot; the violent pruning they regularly experience encourages them to constantly produce large quantities of young nutritious foliage. The large quantities of young nutritious foliage attract many small hemipterans (apparently these are mostly aphids/softbodied scales/mealybugs). Likewise, the small hemipterans attract many coccinellid beetles.

Unfortunately the coccinellids were not particularly cooperative today; I was only able to photograph the lethargic fluffy larva pictured. I have observed several interesting phenomena, though:

- Two coccinellids which visually appear to be Cycloneda sanguinea and Cryptolaemus montrouzieri apparently dominate the scene; in fact they often seem to easily outnumber any Harmonia axyridis present. During today's visit I saw no Harmonia specimens present. I suppose this may be additional evidence that H is not as "invasive" as many terrified native-coccinellid enthusiasts think. I also see a very small black coccinellid (even smaller than Cryptolaemus) every now and then, but it and the other three seem to be the only major ones. I think there were several sevenspot ladies around in the summer too but my memory is fuzzy.

- Around one of the less violently pruned bushes I saw a low-density swarm of male mealybugs or other waxytailed scales (I can't tell the difference) hovering erratically around (but rarely landing on) the leaves. It was quite beautiful; my phone could not photograph the tiny gnatlike things though (sigh)





Hopefully I can drag my blog out of dormancy with further observations of the hibiscus population dynamics; if everything goes well I should be able to produce a new post on the hemipteran-eating contest every week or two until it fizzles out

Various small updates

- The Domino campaign has run out of steam yet again. Research papers state that successful scientific outreach requires feedback from the audience so that techniques can be adjusted; despite all our (yes, "our"; this is a multiperson effort) attempts, feedback was too sparse to be useful.

- In several of my previous posts I have been complaining of problems w obtaining cocofiber. I still haven't used brick #2 (brick #1 turned moldy); I am in such a terrible mood that I am unmotivated to hydrate (the brick expands into soil-like shreds once wet) and put insects in the fiber.

- Coccinellid posts are planned for the future!

Winter bug-hunting

As much as I like complaining, I do get tired eventually.

Here is a somewhat pleasant (mis)adventure from several years ago







(Some background: here in arid CA it is never cold enough to snow, although temperatures can drop precariously close on wintery nights; we thus even have katydids year-round)



On the first weekend of Jan 2015 I decided to stop biting my nails over a perceived lack of interesting invertebrates and dig through some forest logs with a large chisel.

It worked, ...somewhat. The logs were almost completely empty of woodborers but I located a wrinkled and surprisingly small ironclad (approx. 1 cm) under a rock.

I put it in a small box with three small pillbugs but it often feigned death for hours when disturbed.




Later I found a few interesting pancake-shaped woodlice in another wooded area. I misidentified them as Trachelipus rathkii after miscounting their lungs.

the animals later turned out to be Porcellio dilatatus

Sometime later I also took home a small (approx. 1 cm) red-anteriored carabid (Calathus ruficollis) for breeding experiments. I failed to find any conspecifics but kept it anyways.

This pic makes the front end unnaturally non-glossy and the legs too red

Unfortunately, arthropods are delicate organisms (despite their resilience). After living with some Zophobas adults for a while, the carabid broke several of its legs mysteriously; I had to relocate it to a small cup of forest woodchips. It lived for a long time in this pathetic state and quietly died in the summer. The Porcellio did well with the pillbugs and later I added some shimmery gray Porcellionides, but due to an under-ventilation error several pillbugs and all Porcellio perished (pillbugs need more fresh air than the others, so presumably they died first and then released poisonous vapors). The small ironclad simply went limp a number of days after capture; in hindsight it probably could not tolerate the moisture desired by the woodlice in its box.

(in reality the Porcellionides were not orange, it is just bad lighting)