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February 5, 2015

Visualizing all periodical cicada broods

Isn’t this a lovely picture (updated with colors sorted)?

All Broods

This image represents the combined range of all Magicicada periodical cicada broods, including the extinct Broods XI (last recorded in Connecticut) and XXI (last recorded in Florida).

To produce this image, I visited John Cooley’s Magicicada.org Cicada Geospacial Data Clearinghouse and downloaded the Shapefile of Magicicada broods. Then I used the computer program QGIS to change the Shapefile to a KML file, and then I opened the file in Google Earth. Credit goes to John for pulling the data together into the Shapefile.

I manually edited the KML file to try to give each Brood a different color.

An interesting area is Fredrick County, where 5 different broods seem to exist (or have existed) at once.
Fredrick County VA

Peach = Brood I
Green = Brood II
Purple = Brood V
Cyan = Brood X
Red = Brood XIV

It’s also interesting that four of the broods are separated by four years: X, XIV, I, V.

June 23, 2013

New York is still loaded with cicadas

Filed under: Brood II,Magicicada,Periodical,Video — Tags: , — Dan @ 7:51 pm

New york cicadas If you want to see and hear the Brood II cicadas, play hookey this week, and head on up the Hudson Valley in New York State. DO IT! It’s your last chance until 2030 (unless you want to see Brood III and XXII next year).

Today I took an eight hour road trip along the Hudson River in NY. I hit Palisades Interstate Park, Bear Mountain, Cold Springs, virtually every town along rte 9G and 199, Germantown, Hudson, and Woodstock.

Cold Spring and Woodstock were a little disappointing, though their downtowns seemed like nice places to visit (no time for human fun when you’re tracking cicadas). The east side of the Hudson River was definitely more active than the west side, although I did hear cicada choruses along Interstate 87 between exit 18 and 16.

Here’s my favorite locations. The first one is pure gold.

Rt 199
A rest stop for cars.
Rhinebeck NY 12572
41.972693,-73.915277
Loads of ‘decims and cassini. Cassini could be picked off the low lying trees like grapes. ‘Decims hugged trees by the 100’s. Best spot of the day.

130 Main street by the river.
Germantown, NY 12526
42.134975,-73.897069
Cassini and decim choruses. Decims and cassini on low vegetation.

400 New York 308
Rhinebeck, NY 12572
41.938882,-73.88215
Cassini and decim choruses. Decims in low lying trees.

Dutchess Mall, ironically near a big box hardware store that will remain nameless
Fishkill, NY
41.515125,-73.892328
Cassini and ‘decim choruses. ‘Decims in low lying trees. Very active and feisty.

Tiorati Brook Rd
Stony Point, NY 10980
41.252589,-74.055829
‘Decim choruses. ‘Decims in low lying trees.


Some video and audio from the New York emergence:

Periodical cicadas at a rest stop in Rhinebeck NY:

Magicicada septendecim in Stony Point NY:

Magicicada cassini Court II and III NY Brood II 2013:

June 11, 2013

Cicada Video of the Week

Filed under: Brood II,Magicicada,Ovipositing,Periodical,Video — Tags: — Dan @ 4:18 am

Here’s some cicada video I shot over the weekend. Enjoy:

Magicicada trying to take a drink from Cicada Mania on Vimeo.

This cicada is trying to drink sap from my thumb. My thumb is not a tree branch, so it failed. It didn't hurt, but I felt it. It made no hole.

Singing Magicicada septendecim from Cicada Mania on Vimeo.

Using finger snaps to fool a Magicicada septendecim into singing. They think the finger snaps are a female snapping her wings.

Magicicada septendecim ovipositing from Cicada Mania on Vimeo.

Brood II periodical cicada ovipositing (laying eggs).

Magicicada septendecim ovipositing from Cicada Mania on Vimeo.

A Magicicada septendecim cicada laying eggs in a tree branch.

Close up of a tymbal of a Magicicada septendecim from Cicada Mania on Vimeo.

Close up of the timbal of a Magicicada septendecim . No cicadas were harmed in the filming of this video because it was dead when I found it. The ribbed structure is the timbal which makes the noise.

June 8, 2013

Roy Troutman’s 2013 Brood II cicada photos

When Roy Troutman visited New Jersey last week he took a lot of great cicada photos. Here is a sample of the best.

Click these photos to see larger versions of the photos:

This first photo is particularly interesting, because you can see the Magicicada cassini in flight between their calls:

Magicicada cassini flying inbetween calling in Colonia NJ by Roy Troutman

Magicicada nymph:

Cicada Nymph by Roy Troutman

Magicicada undergoing ecdysis:

Magicicada undergoing ecdysis by Roy Troutman

M. septendecim:

M septendecim by Roy Troutman 2

Teneral Magicicada:

Teneral Magicada by Roy Troutman

Mustard-colored eyes:

Mustard eyed Magicicada septendecim by Roy Troutman

Magicicada with exuvia:

Magicicada with Exuvia by Roy Troutman

Magicicada mating:

Magicicada mating by Roy Troutman

Magicicada exuvia and corpses:

Magicicada corpses and exuvia by Roy Troutman

Magicicada staring at you:

Magicicada staring at you by Roy Troutman

Magicicada mating:

Magicicada septendecim mating by Roy Troutman

View all of Roy Troutman’s 2013 Brood II photos.

Brood II Magicicada photos from Scotch Plains, NJ

Filed under: Brood II,Magicicada,Periodical,Photos & Illustrations — Tags: — Dan @ 8:32 am

Enjoy these Brood II Magicicada photos from Scotch Plans, NJ from Judy Lanfredi.

Click each thumbnail image for larger versions.

Teneral Magicicada on a flower. Notice the cicada is gray in color, between the white and final black:

Teneral Magicicada on a flower in Scotch Plains by Judy Lanfredi

Teneral Magicicada and exuvia (shell):

Teneral Magicicada and exuvia  in Scotch Plains by Judy Lanfredi

Teneral Magicicada:

Teneral Magicicada in Scotch Plains by Judy Lanfredi

Mating Magicicada septendecim:

Mating Magicicada septendecim in Scotch Plains by Judy Lanfredi 2

Mating Magicicada septendecim:

Mating Magicicada septendecim in Scotch Plains by Judy Lanfredi

Magicicada on an iris flower:

Magicicada on an iris flower in Scotch Plains by Judy Lanfredi

For more photos by Judy, visit Comments (1)

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