Blacklighting for moths at Hildacy Preserve

I’m finally getting around to posting photographs from National Moth Week (July 23-31). Over a period of perhaps three hours on July 30th I ended up with 27 moths, 3 caterpillars, 3 beetles, 2 flies, 1 cricket, 1 wasp, 1 mantisfly, 1 planthopper, and a mayfly. And, as I discovered the next morning, a bonus tick. If you want to view any of the below photographs larger, just click on them. And if you think I’ve misidentified any of them please let me know.

Here are the moths:

The moth larvae below didn’t show up to the blacklights, of course, but were loitering nearby so I captured them, too:

Below are the beetles that showed up. Stenolophus ochropezus was incredible common, with perhaps several dozen during the evening. In the future we really need to set out some sugar/beer bait to get more beetles to show up.

I have only two photographs of flies (a dance fly and a crane fly) but there were uncountable numbers of small dipterans at the lights. If I’d been thinking I would have set up my smaller lens to document them, but then I would have been there until 3 AM.

Below is the miscellaneous gallery featuring a mayfly, a wasp, a treehopper, a katydid, a green mantisfly, and a tick. The latter came home with me.

Here are all the iNaturalist observations at Hildacy Preserve that day. Currently that link just shows my photographs but hopefully others who attended that night will upload theirs, too.

Huge thanks to Mike Coll and Tanya Dapkey for organizing a fun evening.

For more details on National Moth Week, please see https://nationalmothweek.org/. For moth identification I recommend Peterson’s Field Guide to Moths of Northeastern North America, BugGuide (free!), iNaturalist (free!), and Moth Photographers Group (free!). For larvae I use David Wagner’s Caterpillars of Eastern North America.

If you live near Philadelphia, here are directions to Hildacy Preserve.

Nature pics from Mohonk Mountain House

Below is a sampling of photographs I took during a June stay at Mohonk Mountain House near New Paltz, New York. If nature bores you please scroll to the end for food pics.


I believe these are sidewalk mites (Balaustium sp.). There were thousands on the flowers nearby, all apparently engaged in eating pollen. There are some species that eat only pollen but I gather from the BugGuide description that the more predatory species may eat it facultatively.

These galls are made a the larvae of Acericecis ocellaris, a midge (fly). The ones in this photograph are pretty drab but the galls can be bright red and white, like targets (example). For more on the natural history, please see Michael J. Raupp’s blog post on the species.

Whenever I’m at Mohonk Mountain House in the summer I spend a few minutes taking photographs of the webs along Lake Shore Path, in the rock face near the wood walkway. They are made by Ariadna bicolor, a member of the tunnel-web spider family (Segestriidae). Sadly, they are nocturnal so I don’t have any great photographs of the spiders themselves (I have only one, in fact). I hope to get some nighttime pics during my next visit.


Caddo agilis

This is Caddo agilis, an adorable little harvestman that looks remarkably like a cuttlefish or, perhaps, an alien. Once I got a search image for these beasties there were everywhere. Apparently parthenogenetic so this is almost certainly a female (a harvestwoman?). Males have been found but are super rare.

American green crab spider (Misumessus oblongus) with captured crane fly

American green crab spider (Misumessus oblongus) attempting to subdue a male sooty crane fly (Tipula fuliginosa). This unlucky fly is also carrying a parasitic mite (Trombidioidea).

Long-jawed orbweaver (Tetragnatha elongata)

This spider isn’t doing anything interesting but I’m including it because it was easily the largest long-jawed orbweaver I’ve ever seen. I’m pretty sure it’s a Tetragnatha elongata (more details).

Buttercup blood bee (Sphecodes ranunculi) on an inflorescence

I think this is a male buttercup blood bee (Sphecodes ranunculi). This species is kleptoparasitic on fellow halictids. I’d love to know more about why the abdomen is red.

Jagged ambush bug (Phymata sp.) eating a nude mining bee (Andrena nuda)

Jagged ambush bug (possibly Phymata fasciata) eating a nude mining bee (Andrena nuda). It’s awful to have your innards sucked out while paralyzed but an upside, for me, is that otherwise rare and fast-moving insects become easy to photograph.

Edge-striped shield bug (Elasmucha lateralis) guarding her eggs

Edge-striped shield bug (Elasmucha lateralis) guarding her eggs, something I’ve never seen in a bug. It’s in fact so rare that that is how I made the ID. Per Frost and Haber 1944 (as described on p 112, here), females of this species will vibrate their wings if you separate them from their eggs or squish the nymphs. In related and strange news, males of a related species do the guarding (Requena et al. 2010).

Euxesta notata

Spotted root maggot (Euxesta notata), also known as the cabbage root fly. Per the literature you can rear them by collecting rotting fruit and vegetables, especially onions. If you’re into that sort of thing.

Male Hylemya alcathoe (Anthomyiidae)

Male Hylemya alcathoe (Anthomyiidae). There were hundreds in the area, all perched at the edges of leaves, alert for females. Per Alcock 1983, males defend their leaves so aggressively that they’ll take flight to pursue small sticks and stones thrown to pass near them.

This tiny fly was perhaps the highlight of my trip. It’s a millipede-killing fly in the genus Myriophora, and they were hounding a millipede that was cruising around at top speed in an attempt to dislodge them. The flies just rode them around like sandworms on Arrakis, occasionally ovipositing into the gaps between the tergites.

Bladder campion (Silene vulgaris) with damaged calyx caused by nectar-robbing bumblebee

Flower of bladder campion (Silene vulgaris) that has been chewed by a nectar-robbing bumblebee. Once breached, other pollinators use the back door to more easily steal the nectar.

I was introduced to the mountain spleenwort (Asplenium montanum), above, on a nature walk hosted by Dr. Jackie Schnurr. It’s all over the place once you get a search image for it and the kinds of places it grows (cracks in acidic rock faces). Reeves 1974 reports the existence of a subspecies Asplenium montanum shawangunkense, but it’s not registered (yet) in iNaturalist. Per Reeves its range is between Lake Minnewaska and Lake Mohonk. And lacks sori, so definitely be on the lookout if you are in the area.

This beauty is a Pennsylvania toadskin lichen (Lasallia pensylvanica). This lichen features prominently in a 1974 article by Daniel Smiley (of Mohonk fame) and Carl George, “Photographic documentation of lichen decline in the Shawangunk Mountains of New York“. See figure 3 within for a photograph of the location with Albert Smiley for scale.

Common script lichen (Graphis scripta)

Common script lichen (Graphis scripta) growing on a tree. Or at least that’s what I think it is. Species tends to occur on smooth-barked trees such as birch. I found beetle mites on them.

Northern watersnake (Nerodia sipedon sipedon) basking at the Lily Pond. Per a book on watersnakes the bulk of their diet is fish, but they also eat amphibians, insects, millipedes, spiders, mollusks, and annelids. I was amazed to learn that they sometimes flick the surface of the water with their tongue to mimic a distressed insect (Gibbons and Dorcas 1963). I love how they always seem to use their bodies as chin rests.

And last but not least, here’s a pic of a charismatic megafauna: a North American porcupine (Erethizon dorsatum). It looked dazed or half asleep. I wonder whether it might have been injured, perhaps from a fall from a tree while it was grazing on leaves (this happens a lot to porcupines).

Food

Here’s a sampling of the meals I had while staying at the hotel. In related, unsurprising news, I gained weight.

If you’ve been to Mohonk but wondered what the kitchen looks like these days (it was recently remodeled), here are some pics from a tour led by head chef, Jim Palmeri. Last pic features me.

If you need more, a post with last summer’s pics is here. Building and landscape views of Mohonk Mountain House over the past 20 years are here.