May 21, 2019

Bay Area happy hour Friday May 24 at Social Kitchen in SF

Hey folks, we're doing another happy hour this Friday:

May 24 (Friday), 6pm
Social Kitchen & Brewery
1326 9th Avenue
San Francisco, CA 94122

Join us! Let's see, who's in SF. @rebeccafay and @kestrel, of course. @joelle, @robberfly, @metsa, @ocean_beach_goth. @ang, any chance you'll be working in SF with @mrchasse that day?

Posted on May 21, 2019 00:54 by kueda kueda | 12 comments | Leave a comment

April 26, 2019

Bay Area happy hour Friday April 26 (tomorrow)?

Ugh, again I put this on the calendar and forgot about it until the last minute. Anyone want to get together in SF? I know CNC is on and everything. Bad timing.

Posted on April 26, 2019 02:28 by kueda kueda | 1 comments | Leave a comment

March 21, 2019

Bay Area Happy Hour Friday March 22: Anyone?

I put an iNat Happy Hour on the calendar for tomorrow like a month ago and totally forgot about announcing it or choosing a location. Looks like I'm the only one from the iNat team who could make it (aside from maybe @alexshepard, assuming it's in SF). Is anyone else in the SF / Oakland area interested in grabbing a drink tomorrow evening?

Open to location suggestions BART, though maybe we should keep it near BART. Here's some ideas:

Jupiter (Downtown Berkeley)
Temescal Brewing (MacArthur, Oakland)
Woods Bar (19th St. Oakland)
Kilowatt (16 St., SF, but will it be a madhouse on Friday?)

Peninsular folks (@sea-kangaroo, @gyrrlfalcon, @leslie_flint), any suggestions within walking distance of BART down your way?

Posted on March 21, 2019 17:45 by kueda kueda | 4 comments | Leave a comment

February 19, 2019

Bay Area Happy Hour Friday Feb 22: Mad Oak Bar in Oakland

Alrighty, this week we'll be at Mad Oak Bar in Oakland, Friday at 6pm. This one's close to BART, so maybe it's a bit easier for some folks. Hope to see you there!

Posted on February 19, 2019 21:02 by kueda kueda | 11 comments | Leave a comment

February 14, 2019

Bay Area Happy Hour Friday Feb 15: Sunset Reservoir Brewing Company in SF

Sorry about the late post this week, the iNat team is on retreat! We'll be having happy our at Sunset Reservoir Brewing Company in the Sunset District of San Francisco, starting at 5pm. @pleary and @carrieseltzer are visiting from the East Coast, so if you've ever wanted to meet them, now's your chance. We chose this place because it's family friendly and they serve food, so hopefully it's ok for kids and for dinner. As always, looking for someone wearing an iNat t-shirt and introduce yourself! Hope to see you there.

Posted on February 14, 2019 03:51 by kueda kueda | 4 comments | Leave a comment

February 05, 2019

Bay Area Happy Hour Friday Feb 8: Novel Brewing Company in Oakland

Ok folks, doing it again, but this time in the East Bay

Friday Feb 8, 6pm
Novel Brewing Company
6510 San Pablo Avenue
Oakland, CA

Look for someone wearing an iNat shirt, or, you know, me. Next week the team is on retreat, but we might be able to do something on Friday, maybe in Marin, but SF or Oakland might work too. Open to suggestions.

Posted on February 05, 2019 20:31 by kueda kueda | 1 comments | Leave a comment

February 01, 2019

Happy Hour Tonight?

If anyone's reading, the iNat team is going to restart our (admittedly infrequent) Bay Area happy hours. Tonight we're going to get drinks at Little Shamrock in SF, near the Cal Academy and Golden Gate Park, 6pm. Join us! I'm hoping to start doing this weekly, alternating btwn SF and Oakland / Berkeley, so if you can't make it tonight, there will be others. I posted some details at Not sold on eventbrite yet, might switch to meetup.

Posted on February 01, 2019 17:53 by kueda kueda | 4 comments | Leave a comment

November 19, 2018

Notes on Zarhipis in California

After spending some time trying to figure out this observation, I spent a little more time this weekend understanding its Californian cousin Zarhipis, and I wanted to jot down some notes.


The best and most recent identification resource I've found is

Linsdale, Donald D. (1964). A Revision of the Genus Zarhipis LeConte (Coleoptera: Phengodidae)". The Wasmann Journal of Biology. 22 (2): 225–260.

According to Linsdale, we have three species of banded glowworm in California (Genus Zarhipis):

Image Name Distribution Type Specimen ID Notes
Zarhipis integripennis WA-BJS, east to AZ, generally below 6000 ft. MCZ Type No. 2809 Varied sizes and colors, but elytra rounded and cover > 1/2 of the wings, not tapered.

Note that this obs. shows the tapering elytra a lot better.

Zarhipis truncaticeps SoCal through southern AZ, with a disjunct population in Otero County, NM MCZ Type No. 24156 Elytra extend over > 1/2 the wings, but taper toward the ends so their width doesn't cover all the wings the length does

Photo from Tiemann (1967), (c) California Academy of Sciences, licensing status unknown, but since I work at the Academy and this website is owned and operated by the Academy, I'm going to assume it's ok.

Zarhipis tiemanni Mojave Desert from Ridgecrest, CA east to Littlefield, AZ. At the Smithsonian, but no photos digitized. Elytra tapered as in truncaticeps but shorter, ~1/2 wing length.

There are several other species of phengodids that are or may be in CA according to the California Beetle Project, but all are smaller than 10 mm as adult males according to the key on p. 184 of Arnett et al.'s American Beetles, Volume II, which you can find with the search excerpts on Google Books. They are

  • Cenophengus debilis LeConte
  • Cenophengus longicollis Wittmer
  • Distremocephalus californicus (Van Dyke)
  • Distremocephalus opaculus (Horn)
  • Paraptorthodius mirabilis Schaeffer
  • Phengodes bella Barber

There are also at least two lampyrids, Pterotus obscuripennis and Pterotus curticornis, that you might confuse with Zarhipis b/c they're big, have orange and black coloration, and males have plumose antennae, but note that in both the "branches" on the antennae only come from one side, not both as in Zarhipis.

There is also an excellent illustration of all three species on p. 231 of Linsdale, as well as photos of all three on Plate 4 of Tiemann (1967). Linsdale basically took a lot of names and lumped them into the (now) very morphologically diverse Z. integripennis. His justification for doing so was wonderfully dry:

Fortunately Barber left determined and labeled specimens in the U.S. National Museum representing all ten of the forms that he recognized. All of these forms should be included in the highly variable species, Z. integripennis. Examination of the specimens determined by Barber shows that all but one of the forms occur in the San Francisco Bay region of California and that six out of the ten forms occur in Berkeley, Alameda County, California.

On May 29, 1958, one female attracted five males at Danville, Contra Costa County, California, that seemed to represent the following "species": Z. integripennis, Z. piciventris, Z. amictus, and Z. alamedae.

The six "species" that are being placed in synonymy under Z. integripennis were described from a total of ten specimens. When Barber proposed his ten forms, he had studied only 59 specimens. During the course of this study, 938 specimens of Z. integripennis have been examined. The study of this many specimens has convinced me that the characters used in the past (the color of the dorsal surface of the head and the ventral surface of the abdomen and the width of the border of the pronotum) are variable and unreliable for the separation of the species in the genus Zarhipis.

Life History

Tiemann (1967) is an excellent study of the life history of Z. integripennis with lots of great info and photos. I found notable that

  • Larvae glow the most when resting, the least when actively hunting
  • Mature larviform females would not eat in captivity
  • Larvae are most active when their millipede prey are most active, i.e. when it's damp (not when you usually see the males flying in the warmer summer months)
  • Multiple larvae will feed on a single millipede at once
  • Tiemann described the feeding behavior to be so consistent as to be "programmed": they would bite between the head segment and the first body segment and presumably sever a nerve b/c the milliped would stop moving, sever the rest of the head, eat it, then crawl through the rest of the body, and clean everything out. Tiemann speculated that they exude digestive enzymes because all that remains are the hardened exoskeleton segments.

Posted on November 19, 2018 02:54 by kueda kueda | 4 comments | Leave a comment

October 05, 2018

Removing everything but GPS info with exiftool

For my own reference, but maybe others will find it useful:

exiftool \
  -all= \
  -tagsFromFile @ -GPSLatitude -GPSLongitude -GPSPosition -GPSLatitudeRef -GPSLongitudeRef \

Aaand we should probably not insert <br> tags in <pre> tags.

Posted on October 05, 2018 18:27 by kueda kueda | 0 comments | Leave a comment

July 02, 2018

Costa Rica Recommendations?

My partner and I are planning to go for a week in September. Have never been, only real constraints are time and the fact that we don't want to move around too much, so in a perfect world maybe sleep in two cool spots and explore the surrounding areas. Recommendations? We have at least one suggestion that we just go to Corcovado and stay there the whole time.

Posted on July 02, 2018 04:57 by kueda kueda | 5 comments | Leave a comment