We went to Tilden Regional Park in Berkeley, California for one last time before leaving. It has been a while since we stepped foot into Tilden, but we decided to go today because we only have a few days left. At this time of year, there aren't really any swallowtails around of any species in flight but to our surprise, we did still find a few pipevine swallowtail (Battus philenor hirsuta) caterpillars on the pipevine (Aristolochia californica) growing at the Nature Area's butterfly garden. Last year, they were basically completely gone by this time. It seems that only a few of them ever emerge to make the flight in August; the overwhelming majority of the larvae we reared in the Spring went into diapause. Admittedly, the pipevine at the garden was in very good condition with lots of new growth, perhaps after suffering from disease in the Spring that got it off to a late start, unlike the stuff at Albany Hill which also started growing earlier and got larvae earlier. After the garden, we went down a trail. There is a lake there, so a lot of the grass was still somewhat green and there is willow (Salix) and stinging nettle (Urtica dioca). Though not nearly as common as they were a few months ago here, we did across a western tiger swallowtail (Papilio rutulus) still flying this late into the season. We also found a satyr comma (Polygonia satyrus), but there was nothing on the nettles on the trail or at the garden (and strangely, no red admirals [Vanessa atalanta] either). After the lake, things get a lot more dry and it starts looking like a typical California landscape -- yellow grass everywhere with tons of tiny prairie butterflies hopping around. There were perhaps hundreds of blue hairstreaks there courting, nectaring, and just going about their business. They were probably all acmon blues (Plebejus acmon). There is also a lot of thistle (Asteraceae) in that particular area with very obvious frass filled silk nests by painted lady (Vanessa cardui) larvae, but we could not actually find any larvae (they must have already pupated). A little past this segment, there starts to be less grass and more trees consisting mostly of live oaks (Quercus) and a few California buckeyes (Aesculus californica) and pines (Pinus). Here, the dominate species were California ringlets (Coenonympha tullia california) as well as some mylitta and field crescents (Phyciodes mylitta, pulchella) which were courting. There must have been a hundred of all of these too. On the way back, we past the lake again. There is a bridge there, but the water underneath it has apparently all dried up. The area is shaded with lots of green trees that we don't know, so no leps. After that, we hurried to the Tilden botanical garden which closes at 5 PM. Most of the pipevine there is in atrocious condition, about the same level as the pipevine at Albany Hill, except for the stuff growing right next the water which looked almost as good as Spring. There was nothing flying there whatsoever, but it was still a nice chance to explore some paths that we hadn't walked before. ![]() Authors Brian Liang
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Timeline 2012–2017
Albany, California This timeline is a series of daily posts recording our observations on and experiences with various insects in Albany California and surrounding areas, from 2012-2017. Since we did not publish this site until 2016, posts before that were constructed retroactively. Starting in August 2017, we moved to Ithaca, New York; posts from there on can be viewed at Timeline 2017-present: Ithaca, New York. Archives (1,011)
August 2017 (49) July 2017 (121) June 2017 (79) May 2017 (77) April 2017 (91) March 2017 (35) February 2017 (12) January 2017 (10) December 2016 (12) November 2016 (26) October 2016 (49) September 2016 (84) August 2016 (94) July 2016 (99) June 2016 (53) May 2016 (21) April 2016 (4) January 2016 (1) August 2015 (3) July 2015 (3) June 2015 (2) June 2014 (3) May 2014 (1) April 2014 (3) March 2014 (3) December 2013 (2) November 2013 (2) October 2013 (5) September 2013 (11) August 2013 (15) July 2013 (9) June 2013 (5) May 2013 (4) April 2013 (3) March 2013 (2) February 2013 (3) January 2013 (2) December 2012 (2) November 2012 (1) October 2012 (2) September 2012 (2) August 2012 (5) July 2012 (1) June 2012 (1) Authors
![]() ![]() Full Species List (Alphabetical by scientific name) Note: - Not every species we encounter is necessarily presented on this site, rather a selection of those that were of particular interest to us and that we felt were worth documenting. - We can't guarantee that all species have been identified accurately, particularly taxa we are not as familiar with. Lepidoptera Actias luna Adelpha californica Agraulis vanillae Allancastria cerisyi Antheraea mylitta Antheraea polyphemus Anthocharis sara Argema mimosae Attacus atlas Battus philenor hirsuta Bombyx mori Caligo atreus Callosamia promethea Coenonympha tullia california Citheronia regalis Cricula trifenestrata Danaus plexippus Eacles imperialis Erynnis tristis Estigmene acrea Eumorpha achemon Eupackardia calleta Furcula cinereoides Heliconius erato Heliconius hecale Heliconius sapho Heliconius sara Hyalophora cecropia Hyalophora columbia Hyalophora euryalus Hylephila phyleus Hyles lineata Junonia coenia Langia zenzeroides formosana Lophocampa maculata Manduca sexta Morpho peleides Nymphalis antiopa Orgyia vetusta Orthosia hibisci quenquefasciata Pachysphinx modesta Papilio cresphontes Papilio eurymedon Papilio glaucus Papilio machaon oregonius Papilio multicaudata Papilio polyxenes asterius Papilio rumiko Papilio rutulus Papilio zelicaon Phyciodes mylitta Phyciodes pulchella Pieris rapae Plejebus acmon Poanes melane Polites sabuleti Polygonia satyrus Pyrgus communis Rothschildia jacobaeae Samia cynthia advena Samia ricini Smerinthus cerisyi Smerinthus ophthalmica Strymon melinus Trichoplusia ni Uresephita reversalis Vanessa annabella Vanessa atalanta Vanessa cardui Unidentified Lepidoptera Hybrids Papilio glaucus × Papilio rutulus Papilio polyxenes asterius × Papilio zelicaon Orthoptera Melanoplus devastator Phaneroptera nana Pristoceuthophilus pacificus Scudderia mexicana Trimerotropis pallidipennis Phasmatodea Carausius morosus Phyllium giganteum Mantodea Mantis religiosa Phyllocrania paradoxa Hymenoptera Apis mellifera Bombus vosnesenskii Brachymeria ovata Linepithema humile Pediobius sp. Polistes dominula Xylocopa varipuncta Unidentified Diptera Lucilia sericata Unidentified Hemiptera Brochymena sp. Leptoglossus sp. Nezara viridula Odonata Argia vivida Libellula croceipennis Coleoptera Coccinella septempunctata Cycloneda polita Diabrotica undecimpunctata Hippodamia convergens Araneae (Class: Arachnida) Araneus diadematus Phidippus johnsoni |