Priyantha Wijesinghe
@elaphrornis.bsky.social
330 followers 360 following 750 posts
A naturalist on the prowl. (New here, same handle on Twitter/X)
Posts Media Videos Starter Packs
elaphrornis.bsky.social
Listening to a really fascinating talk about hover flies & their migratory behavior by @entosamm.bsky.social via @biologicalrecording.co.uk . If you miss the talk catch the recording via the BRC’s YouTube channel later.
biologicalrecording.co.uk
Quiz question: What do the three hoverfly species in the top row have in common that those in the bottom row do not?

To learn all about the fascinating insects, join us for a FREE webinar with @entosamm.bsky.social on 6th October. 🪰 🌎 🧪

Sign up here: www.eventbrite.co.uk/e/1490885461...
elaphrornis.bsky.social
NTB WNPS Monthly Lecture

The Study of Sri Lanka’s Endemic Biota: A Malacologist's View
By Dinarzarde Raheem

When: 16th October 2025, 6.00 p.m.
Where: Jasmine Hall, BMICH, Colombo
Monochrome portrait photograph of Dr Dinarzarde Raheem against a background of an aerial view of a rainforest, with three small photographs of different snail species vertically positioned along the right margin. With text:

The Study of Sri Lanka’s Endemic Biota: A Malacologist's View
By Dinarzarde Raheem

16th October 2025 6.00 p.m. Jasmine Hall, BMICH
elaphrornis.bsky.social
"On a birding trip to Delaware's Bombay Hook, the trip leader suggested @inaturalist.bsky.social to me, and it has been life-changing ever since. All these taxa that had previously been inaccessible suddenly came within reach, and I am utterly fascinated by the diversity of life."
- SpyingNaturalist
elaphrornis.bsky.social
Spotted Lanternflies are actually pretty interesting critters. Lots about them in the invasive species & crop pest literature, but perhaps not so much about them as wild organisms worthy of study in their own right. From September 26th.
elaphrornis.bsky.social
Should have added this video clip of Atteva aurea (Ailanthus Webworm) caterpillars in their communal web as it’s from the same observation. See how the caterpillars “scoot” away smoothly from danger.
elaphrornis.bsky.social
Illustration by Colleen Witkowski of life cycle of Spotted Lanternfly, from Penn State Extension (extension.psu.edu/spotted-lant...). Gravid females with or without males on Ailanthus trees, wonder if low nighttime temperature will kill them before egg laying. Old egg mass in tire track pattern.
Illustration by Colleen Witkowski of life cycle of Spotted Lanternfly. Old egg mass of Spotted Lanternfly showing tire track like arrangement.
Reposted by Priyantha Wijesinghe
ajcann.bsky.social
Whole lotta Paroligolophus agrestis out there at present.

#Arachnids #Opiliones #VC55 #Arachtober
Paroligolophus agrestis female
Reposted by Priyantha Wijesinghe
forthespiders.bsky.social
Thrilled our paper is finally out! A great collaboration between @mcaterino.bsky.social, Ernesto Recuero, and myself. We looked at endemism in spiders in southern Appalachia (largely NC).

This is also likely the most species-rich phylogeny (although just COI-based) of linyphiids yet published!
mcaterino.bsky.social
High elevation litter spiders of southern Appalachia show less local endemism than other arthropods - ballooning by spiderlings apparently overcomes geographic isolation. A great collaboration with @forthespiders.bsky.social & Ernesto Recuero

doi.org/10.1636/JoA-... (if paywalled write me for pdf)
One fourth of a phylogenetic tree of southern Appalachian spiders, with photos of three representative taxa along the right side, Wadotes hybridus (reddish brown cephalothorax with zig-zag stripey gray and white abdomen), Neon nelli (large-eyed gray jumping spider), and Antrodiaetus sp. (a large-jawed mygalomorph trapdoor spider, light tan with a reddish abdomen. One fourth of a phylogenetic tree of southern Appalachian spiders, with photos of four representative taxa along the right side, Centromerus denticulatus and Centromerus tennapax (both mostly golden brown with gray abdomen, both males with enlarged palps), Bathyphantes bishopi (dark brown cephalothorax, long legs, dark gray abdomen), Tenuiphantes sabulosus (golden cephalothorax, long legs, pale dark-striped abdomen). One fourth of a phylogenetic tree of southern Appalachian spiders, with photos of four representative taxa along the right side, Collinsia sp. and Collinsia oxypaederotipus (both with light brown cephalothorax, pale legs, gray-green abdomen, both males with enlarged palps), Ceraticelus laetabilis (stout, with brown cephalothorax and lighter brown abdomen, palps slightly enlarged), Ceraticelus fissiceps (orange cephalothorax with distinctly enlarged dark snout, lighter abdomen). One fourth of a phylogenetic tree of southern Appalachian spiders, with photos of four representative taxa along the right side, Sisicus n. sp (not yet described, light brown round cephalothorax, with pale abdomen and legs, large male palps), Floricomus praedesignatus (dark tuberculate male cephalothorax, gray-green abdomen, pale legs), Blestia sarcocuon (anteriorly pointed cephalothorax, dark with long yellowish legs, impressive male palps), and Ceratinops carolinus (prolonged elevated, brown male cephalothorax, gray-green abdomen).
elaphrornis.bsky.social
Nilanthi Rajapakse is the author of these two guides to Strobilanthes in Sri Lanka, published by the Department of Wildlife Conservation, Sri Lanka. (Thanks to Gehan de Silva Wijeyeratne for the images.)
elaphrornis.bsky.social
Is there an actual decline in the Spotted Lanternfly in NYC or has the "novelty" aspect worn off now? [Raw observations for each year (1 January to 31 December) since it was first recorded from NYC on @inaturalist.bsky.social in 2020 (52 observations, by 20 observers; 2025 numbers to date.]
Reposted by Priyantha Wijesinghe
andrew-jewels.bsky.social
A tight cluster of Striped Shielbugs (Graphosoma italicum), plus a 7-spot Ladybird, on a Hemlock stem in Abbey Gardens, Waltham Abbey yesterday. A total of 19 adults and five nymphs counted on this one plant. #EssexWildlife #UKBugs
A tight cluster of Striped Shieldbugs on a Hemlock stem with a 7-spot Ladybird at the back.
elaphrornis.bsky.social
SLNHS Public Lecture #6 / 2025 
Mass Blooming of Nelu in Horton Plains: A Magical 12 Year Phenomenon Returns in 2025
Dr. Nilanthi Rajapakse
Tue, 14 October 2025
6:00 PM (🇱🇰)
Biology Lecture Theatre 2, Department of Plant Sciences, University of Colombo
Zoom:
Meeting ID: 867 2801 9061
Passcode: 269031
elaphrornis.bsky.social
Found many dead Oryzaephilus beetles in a bag of long-forgotten semolina. They are tiny, so I’ll need to take a closer look at higher magnification 🔬 to decide if they are O. mercator or O. surinamensis, using this handy publication 👉
publications.gc.ca/collections/...
Out of focus photo of a dead brown beetle with lengthwise ridges on its pronotum and striations on its wing cases (elytra), with sawtooth like sides to the pronotum. Figure of Oryzaephilus mercator from Beetles associated with stored products in Canada: An identification guide by Yves Bouquet, 1990. Agriculture Canada.
Reposted by Priyantha Wijesinghe
msatris.bsky.social
oh WOW, a review like I couldn't even have dreamed for Liam O'Brien's new book from Heyday, "Butterflies of the Bay Area and (Slightly) Beyond: An Illustrated Guide." Liam charmed me from the minute we met -- now you all get to experience his art and effervescence too!! www.kqed.org/arts/1398161...
A New Book About Butterflies Sprinkles Magic Around the Bay
A Broadway actor who pivoted into butterfly research, Liam O’Brien enhances the beauty of the Bay Area with this wonderful, accessible guide.
www.kqed.org
elaphrornis.bsky.social
A hummingbird visited Mrs W's Impatiens flowers in our backyard today. #NatureNYC
elaphrornis.bsky.social
Do Cepaea nemoralis snails smell like female Spotted Lanternflies? Why else are these male Spotted Lanternflies apparently trying to court a snail?
elaphrornis.bsky.social
Took a walk on the wild side. Saw many female Spotted Lanternflies accompanied by one to many males. (I didn’t see any pairs actually “in copula”, however.)
elaphrornis.bsky.social
Female Spotted Lanternflies looking very gravid these days.
Female Spotted Lanternfly with distended yellow abdomen. Female Spotted Lanternfly with distended yellow abdomen.