Tag Archives: Papilio rutulus

CalNat Field Trip #2, Lake solano Park, 07-13-19

On the way to Lake Solano Park for our second Certified California Naturalist field trip of the summer, I stopped to put some gas in my car, and I was treated with the sight of some hot air balloons floating over the city of Winters and its surrounding fields. One of the balloons was either dragging or coming in for landing because it got REALLY low over downtown. I could see the people in the basket.  I was kind of surprised to see the balloons at all considering that it was already about 62° when I got to Winters.  Hot air balloons only work if the air around them is cooler than the air in the balloon (so they fly more successfully in the fall-to-spring time period than they do in the summer.)

I was the first one in our group to get to the park and pulled up into one of the upper parking lots because the lot nearest the park itself was still closed.  Technically, the park doesn’t open until 8:00 am, so I was there before the all-gates-open time. The rangers weren’t too pleased that I was in the upper lot before 7:30 am, but they didn’t say anything – until AFTER 8:00 am and my students had arrived, and we were in the park area itself.  I’ll know better next time not to get there early.

The reason for trying to get my group there earlier in the day, though, was to try to beat the heat. It got up to 79° by 10:30 am. So, we cut the trip a little short to get everyone back in their air-conditioned cars before we all overheated. Along with my co-worker Bill and most of the students in the class, Greg Ira (the Director of the Certified California Naturalist program at the University of California) joined us for our walk.

CLICK HERE for the full album of photos.

One of the first things we pointed out to the group was the difference between the native Black Walnut trees and the English Walnut trees. English Walnut trees don’t generally do good in California, so they’re grafted onto the native Black Walnut root stock. We were able to show the students the graft mark in one of the trees (with the Black Walnut on the bottom and the English Walnut on top) and showed them that even through the tree itself was now primarily English Walnut, they could still see some shoots of Black Walnut stems and leaves growing up out of the root stock.

English Walnut grafted onto Black Walnut rootstock.

We seemed to hear more birds than we put eyes on, and my student Alison K., who like our student Ken E., is a birding expert, helped us with the sound IDs.  Alison also told the group about the sap wells we were seeing in the bark of some of the trees, created by Sapsucker birds who drill the wells not so much to suck the sap, but to attract insects they can eat.  On one tree we found several clear samples of the wells, along with some hefty outpourings of the sweet sap.

Tree sap oozing from wells drilled by Sapsuckers.

We also came across a large juvenile Great Blue Heron that was sitting in a tree adjacent to the trail.  It posed for some photos, pooped into the river and then flew off with a deep-throated croaky squawk. I guess he told us what he thought about us. We also came across a small creche of Peahens with their fledgling poults. A group of three moms were taking the babies to the edge of the river to get a drink.

 I myself was focused more on finding galls than seeing birds on this trip, however, and was able to point out newly budding examples of Pumpkin galls, Roll Gall Midge galls, Erineum Mite galls, Cluster Galls, Spiny Turbans, Two-Horned galls and Flat-Topped Honeydew galls. Most of the galls were just starting to emerge and weren’t their full size yet.  Give them another week or two and they should be spectacular.

 Our group also found quite a few different orb-weaver spiders included Spotted Orb Weavers and Long-Jawed Orb Weavers. And we spotted a variety of butterflies, dragonflies and damselflies including: California Pipevine Swallowtail butterflies, a sleepy Buckeye butterfly, a Painted Lady butterfly, and a Tiger Swallowtail butterfly on the wing; Widow Skimmer dragonflies, Flame Skimmers, Four-Spotted Skimmers, Pond Skimmers and Blue Dasher dragonflies, plus several damselflies that looked like they’d just emerged and weren’t colored-up yet.

Along with imparting some of what I know to the class, I always learn something new on these field trips or add to knowledge I already have, so it’s always fun and exciting to me. I found two galls I hadn’t seen before and found out that even the experts were having trouble properly identifying them. One was a gall made by the Roll Gall Midge (whose species is known but not its genus) and it took the form of rolled edges along the leaves of Live Oak trees.  The other was an odd tubular “prick” on the leaf of a Valley Oak tree. At first, I thought I was just looking at a weird anomaly on the leaf, but then I saw the exact same structure repeated on leaves of different Valley Oaks, so I took some photos and looked it up when I got home.  Experts recognize it as a wasp-induced gall but they don’t know what species it’s associated with yet, and think it might be a second-generation gall for an already identified gall wasp.  Everything I found on it called it a “Leaf Gall Wasp” gall but with the species listed as “Unidentified”. How neat!

Gall of the UNIDENTIFIED Leaf Gall Wasp.

 As we were looking at some California Wild Grape vines, Greg asked for the term for the process by which tendrils wrap around things. None of us could remember it at the time. Of course, when I got home, it came to me: “THIGMOTROPSIM”! Cool word, huh?  You can read more about it here: http://biology.kenyon.edu/edwards/project/steffan/b45sv.htm

Another word that wouldn’t come to mind yesterday when we were out on the field trip… We saw a lot of damselflies that had apparently just emerged and weren’t “colored up” yet, and I couldn’t remember the term for that state.  It’s “TENERAL“: the state of an insect immediately after molting. At this time the insect’s exoskeleton has not hardened and it may be pale in color.

A “teneral” damselfly

A little further along our walk, some of the students noticed frothy ooze coming out of the base of a Valley Oak tree. It looked something like Sudden Oak Death (SOD) to me, but it was a lot more frothy, and I’d never seen SOD near the bottom of a tree before. So, I looked it up when I got home.

 The foam is from a bacterial infection in the tree called “Alcoholic Flux” or Foamy Canker. It usually affects trees in the summer that have been stressed in some way. Bacteria infects the tree and ferments some of the sap. The fermentation is expelled by the tree in a frothy slime that kind of smells like sour beer. Unlike SOD, alcoholic flux isn’t usually a permanent or fatal kind of infection. It’s usually gone by the end of the summer.

“Alcoholic Flux” or Foamy Canker on the base of a Valley Oak tree.

We’d also seen a lot of small gnats around the ooze, and I’m not sure, but I’m going to infer that they were getting buzzed on the fermented juice. Hah!

By 10:30 it was already too hot to keep people out in the sun, so the group broke up and we all headed back to our cars by different routes.

Species List:

  1. Acorn Woodpecker, Melanerpes formicivorus,
  2. Alcoholic Flux bacteria, Foamy Canker, Slime Flux,
  3. American Bullfrog, Lithobates catesbeianus,
  4. Belted Kingfisher, Megaceryle alcyon,
  5. Black Phoebe, Sayornis nigricans,
  6. Black Walnut, Juglans nigra,
  7. Blue Dasher, Pachydiplax longipennis,
  8. Blue Elderberry, Sambucus cerulea,
  9. Box Elder Tree, Acer negundo,
  10. Bull Thistle, Cirsium vulgare,
  11. California Pipevine Swallowtail Butterfly, Battus philenor hirsuta,
  12. California Pipevine, Aristolochia californica,
  13. California Scrub Jay, Aphelocoma californica,
  14. California Wild Grape, Vitis californica,
  15. Canada Goose, Branta canadensis,
  16. Common Buckeye Butterfly, Junonia coenia,
  17. Common Merganser, Mergus merganser,
  18. Convoluted Gall Wasp, Andricus confertus,
  19. Eight-Spotted Skimmer, Libellula forensic,
  20. English Plantain, Ribwort, Plantago lanceolata,
  21. English Walnut, Juglans regia,
  22. Flame Skimmer, Libellula saturate,
  23. Flat-Topped Honeydew Gall Wasp, Dishopcaspis eldoradrnsis,
  24. Great Blue Heron, Ardea herodias,
  25. Green Shield Lichen, Flavoparmelia caperata,
  26. Hoary Rosette Lichen, Physcia aipolia,
  27. Indian Peafowl, Pavo cristatus,
  28. Interior Live Oak, Quercus wislizeni,
  29. Leaf Gall Wasp, Unidentified
  30. Painted Lady Butterfly, Vanessa cardui,
  31. Poison Oak, Toxicodendron diversilobum,
  32. Pumpkin Gall Wasp, Dryocosmus minusculus,
  33. Roll Gall Midge, Contarinia sp.,
  34. Spiny Turban Gall Wasp, Antron douglasii,
  35. Spotted Orb Weaver Spider, Neoscona crucifera,
  36. Sunburst Lichen, Xanthoria elegans,
  37. Two-Horned Gall Wasp, Dryocosmus dubiosus ,
  38. Valley Oak, Quercus lobata,
  39. Walnut Erineum Mite Gall, Aceria erinea,
  40. Western Pondhawk, Erythemis collocata,
  41. Western Tiger Swallowtail Butterfly, Papilio rutulus,
  42. Widow Skimmer Dragonfly, Libellula luctuosa,
  43. Woolly Aphid, Prociphilus sp.,

It was “Buggy” Out There Today, 04-27-19

I got up a little before 6:00 am and headed out to the Effie Yeaw Nature Preserve for a walk.  I wanted to get there by 6:30 so I could beat the heat for today.  Actually, the weather was rather pleasant all day, but anything over 70° is uncomfortable for me when I’m outside.

When I got there, The-Other-Mary, Mary Messenger, another volunteer trail-walker at Effie Yeaw, was there wanting to join me, and my friend/naturalist/volunteer Roxanne Moger also showed up. So, we had a nice time looking at all the little stuff that was around us.

CLICK HERE for the full album of photos.

Roxanne and I were more focused on bugs and galls this time around than the larger animals, so we were moving really slowly, investigating the leaves of plants and using the macro-settings on our cameras.  I actually like the quality of the macro-photos better on my cell phone than on my camera (it can get in tighter and more clearly), so I was using that a lot.  The best finds of the day were made by Roxanne who discovered a Tiger Swallowtail butterfly in a tree and a California Alligator Lizard hiding in some clover.  The alligator lizards are super-common in Southern California, but we don’t see them much here, so finding one is always fun.

We located a Black Phoebe nest, found out where an Oak titmouse was hiding out in a tree (that was guarded at the moment we saw it by a Western Fence Lizard), and also saw a Starling leave her nesting cavity with a white glob in her beak. She threw the glob down in a field and kept on flying.  I’m assuming she was doing housekeeping and tossed the babies’ fecal sacs.

We saw a few deer, including a pair of bucks in their velvet. One of the bucks decided to do a head-scratching maneuver that, at the same time, flashed his junk at us.  Hah!  How rude!  I also came across a doe who was having a sneezing fit.  I don’t know if she snuffled up something while she was browsing or what, but she was loud!

The elderberry bushes are just starting to flower-out, as are the Buckeye chestnut trees. The few plum trees in the preserve already have plums on them, and some were starting to turn purple.

On the walk, we came across both Oak Apple wasp galls and Live Oak wasp galls.  And, as for the insects, I saw Pipevine Swallowtail caterpillars and butterflies, Painted Lady caterpillars and butterflies, some Tussock Moth caterpillars, Craneflies, some bumble bees, hover flies, damselflies (including a male and female Pacific Forktail), Soldier Beetles, ladybugs, aphids and some Spittle Bug spit and other critters. There are so many teeny-tinies around.

By this time of the spring, some of the butterflies are already looking pretty ragged. I saw several of them with tears in their wings and frayed edges.  I think some of the damage is done by the grasses that grow up around the flowers and plants the butterflies utilize. The razor-edges of the grass can cut human skin, so I can only imagine how quickly they can damage the fragile wings of the butterflies.

I walked for about 4 hours and then headed home.

Species List:

1. Acorn Woodpecker, Melanerpes formicivorus,
2. American Bullfrog, Lithobates catesbeianus,
3. Aphids, superfamily Aphidoidea,
4. Asian Lady Beetle, Harmonia axyridis,
5. Bedstraw, Cleavers, Galium aparine,
6. Billbug, Weevil, Sphenophorus sp.,
7. Black Phoebe, Sayornis nigricans,
8. Black Walnut Erineum Mite galls, Eriophyes erinea,
9. Black Walnut, Juglans nigra,
10. Blue Elderberry, Sambucus cerulea,
11. Blue Oak, Quercus douglasii,
12. Blue Penstemon, Penstemon azureus,
13. Bush Monkey Flower, Mimulus aurantiacus,
14. Bushtit, Psaltriparus minimus,
15. California Buckeye Tree, Aesculus californica,
16. California Ground Squirrel, Otospermophilus beecheyi
17. California Manroot, Bigroot, Marah fabaceus,
18. California Pipevine Swallowtail butterfly, Battus philenor hirsuta,
19. California Pipevine, Dutchman’s Pipe, Aristolochia californica,
20. California Poppy, Eschscholzia californica,
21. California Scrub Jay, Aphelocoma californica,
22. Camel Cricket, Gammarotettix bilobatus,
23. Catface Spider, Araneus gemmoides,
24. Columbian Black-Tailed Deer, Odocoileus hemionus columbianus,
25. Common Catchfly, Silene gallica,
26. Common Fringepod, Thysanocarpus curvipes,
27. Common Popcorn Flower, Plagiobothrys stipitatus,
28. Common Yarrow, Achillea millefolium,
29. Convergent Lady Beetle nymph, Hippodamia convergens,
30. Cranefly, family Tipulidae,
31. Deer Grass, Muhlenbergia rigens,
32. Desert Cottontail, Sylvilagus audubonii,
33. Dog Vomit Slime Mold, Fuligo septica,
34. Dogtail Grass, Cynosurus echinatus,
35. European Starling, Sturnus vulgaris,
36. Fiery Skipper, Hylephila phyleus,
37. Foxtail Barley, Hordeum murinum,
38. Gold Dust Lichen, Chrysothrix candelaris,
39. Green Shield Lichen, Flavoparmelia caperata,
40. House Wren, Troglodytes aedon,
41. Indian Paintbrush, Castilleja affinis,
42. Interior Live Oak, Quercus wislizeni,
43. Italian Thistle, Carduus pycnocephalus,
44. Ithuriel’s Spears, Triteleia laxa,
45. Leafhopper, Chlorotettix sp.,
46. Miniature Lupine, Lupinus bicolor,
47. Moth caterpillar, possibly Amphipyra brunneoatra
48. Oak Apple Wasp Gall, Andricus quercuscalifornicus
49. Oak Titmouse, Baeolophus inornatus,
50. Oakmoss Lichen, Evernia prunastri,
51. Olive Tree, Olea europaea,
52. Pacific Forktail damselfly, Ischnura cervula,
53. Painted Lady butterfly, Vanessa cardui,
54. Periwinkle, Vinca major,
55. Pink Grass, Windmill Pink, Petrorhagia dubia,
56. Pipevine Swallowtail butterfly, Battus philenor hirsuta,
57. Plum, Prunus cerasifera,
58. Poison Oak, Toxicodendron diversilobum,
59. Red-Shouldered Hawk, Buteo lineatus,
60. Rio Grande Wild Turkey, Meleagris gallopavo intermedia,
61. Rock Shield Lichen, Xanthoparmelia conspersa,
62. Rose Clover, Trifolium hirtum,
63. Rusty Tussock Moth caterpillar, Orgyia antiqua,
64. Sedge, Tall Cyperus, Cyperus eragrostis,
65. Showy Milkweed, Asclepias speciose,
66. Soldier Beetle, Brown Leatherwing Beetle, Pacificanthia consors,
67. Spittlebug, Meadow Spittlebug, Philaenus spumarius,
68. Spotted Towhee, Pipilo maculatus,
69. Spring Vetch, Vicia sativa,
70. Strawberry Clover, Trifolium fragiferum,
71. Sunburst Lichen, Xanthoria elegans,
72. Valley Oak, Quercus lobata,
73. Valley Tassels, Castilleja attenuate,
74. Western Bluebird, Sialia mexicana,
75. Western Fence Lizard, Sceloporus occidentalis,
76. Western Redbud, Cercis occidentalis,
77. Western Tiger Swallowtail butterfly, Papilio rutulus,
78. White Horehound, Marrubium vulgare,
79. Winter Vetch, Vicia villosa,
80. Yerba Santa, Eriodictyon californicum,