Bumble Bees (Hymenoptera: Apidae: Bombus spp.) of Interior Alaska: Species Composition, Distribution, Seasonal Biology, and Parasites.

The article appeared May 5 in Biodiversity Data Journal.

Pampell R, Sikes D, Pantoja A, Holloway P, Knight C, Ranft R (2015) Bumble Bees (Hymenoptera: Apidae: Bombus spp.) of Interior Alaska: Species Composition, Distribution, Seasonal Biology, and Parasites. Biodiversity Data Journal 3: e5085. doi: 10.3897/BDJ.3.e5085

Defoliation of spruce by aphids around Kachemak Bay

Green spruce aphids from the Homer Bench, 12.June.2015.

Aphids from spruce at the Homer Bench, 12.June.2015.  Photo courtesy of Karin Sonnen (USDA NRCS, Homer).

Mitch Michaud (USDA NRCS, Kenai), phoned me regarding substantial defoliation of spruce at Halibut Cove and the Homer bench. At Halibut Cove, spruces had been dropping many needles.

Aphids were the culprit, but the identity of the aphids has not yet been established.

Spruce defoliation due to aphids

Browning spruce needles due to aphid infestation, 9.June.2015.

Browning of spruce needles.

Browning of spruce needles.

Spruce trees damaged by aphids, 9.June.2015.

Spruce trees damaged by aphids, 9.June.2015.

Large Aspen Tortrix Activity in the Fairbank’s Area

 

 

A large stand of defoliated aspen visible from across the valley.

A large stand of defoliated aspen visible from across the valley.

In the last two weeks there have been numerous reports of aspen defoliation in the Goldstream Valley on the north side of Fairbanks.  An area approximately 50 acres in size has been heavily defoliated by the caterpillar, large aspen tortrix (Choristoneura conflictana (Walker)). Brief, intense outbreaks are common throughout the range of aspen, and typically last 2-3 years before collapsing.  These outbreaks can grow to cover thousands of acres.  The larvae tie together leaves with webbing and feed on the plant tissue.  They will web other species of plants and feed on them if they run out of available aspen foliage.  Although the forest can look very grim, leafless and covered in webbing, the trees will often create a second flush of leaves later in the summer. Historically there has been little long-term damage to the aspen trees associated with past outbreaks.

 

The aspen were completely defoliated shortly after bud break by the large aspen tortrix.

The aspen were completely defoliated shortly after bud break by the large aspen tortrix.

With few aspen leaves left to feed on, the larvae have been descending from the canopy and webbing understory vegetation to feed upon, including spruce, alder, birch, and roses.

With few aspen leaves left to feed on, the larvae have been descending from the canopy and webbing understory vegetation to feed upon, including spruce, alder, birch, and roses.

First New World Record of Paradelphacodes paludosus (Flor 1861) (Hemiptera: Fulgoroidea : Delphacidae) in Alaska

UAM:Ento:164292, lateral view

UAM:Ento:164292, lateral view. Media details: http://arctos.database.museum/media/10430146

The article appeared in this month’s issue of Entomological News, available at the URI below.

http://dx.doi.org/10.3157/021.124.0511

Citation:
Charles R. Bartlett, Stephen W. Wilson, Derek S. Sikes. 2015. First New World Record of Paradelphacodes paludosus (Flor 1861) (Hemiptera: Fulgoroidea : Delphacidae) in Alaska. Entomological News 124(5):370-372.

Specimen record:
http://arctos.database.museum/guid/UAM:Ento:164292

2015 AKES Newsletter posted

The March 2015 Newsletter of the Alaska Entomological Society is now available at the URI below.

http://www.akentsoc.org/doc/AKES_newsletter_2015_I.pdf

Cover of AKES Newsletter 2015, issue IIn this issue:

  • First record of a cluster fly (Calliphoridae: Pollenia) in Alaska
  • What is a specimen? What should we count and report when managing an entomology collection?
  • Moths land on Murkowski’s desk—Senate Resolution 70
  • Two new Lepidoptera host plant relationships
  • The DNA barcoding UAMU Project: Testing the insect identification power of DNA barcoding technology
  • Review of the eighth annual meeting