| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Dendroctonus obesus. |
| Date: | 12/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest injuries and protection damage by animals insects megaloptera |
| Location: | Alaska; Porcupine River |
| Description: | Porcupine River, Alaska. Bank cutting-dislodged w. spruce become breeding material for lps interpuctus. |
| Date: | 6/22/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
forest injuries and protection damage by animals insects megaloptera |
| Location: | Alaska; Porcupine River |
| Description: | Porcupine River, Alaska. Under cutting bank and dislodged w. spruce trees serve as breeding material for lps interpuctus. |
| Date: | 6/22/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Hopkins #39386 Argyresthia sp. Adult on western hemlock. Larval stage mines in the tips of the needles. |
| Date: | 5/22/1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Black-headed budworm adults. [Year estimated. Location could be British Columbia.] |
| Date: | 1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Black-headed budworm adults. [Year estimated. Location could be British Columbia.] |
| Date: | 1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Female & male adults, hemlock sawfly. [Year estimated.] |
| Date: | 1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Male & female adults, hemlock sawfly. [Year estimated.] |
| Date: | 1957 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
systematic zoology insecta |
| Location: | Alaska |
| Description: | Hemlock sawfly parasite, adult Hymenoptera. [Year estimated.] |
| Date: | 1957 |












![Black-headed budworm adults. [Year estimated. Location could be British Columbia.] Black-headed budworm adults. [Year estimated. Location could be British Columbia.]](/rds/imagedb/images/_thm/31617.jpg)
![Black-headed budworm adults. [Year estimated. Location could be British Columbia.] Black-headed budworm adults. [Year estimated. Location could be British Columbia.]](/rds/imagedb/images/_thm/31618.jpg)
![Female & male adults, hemlock sawfly. [Year estimated.] Female & male adults, hemlock sawfly. [Year estimated.]](/rds/imagedb/images/_thm/31635.jpg)
![Male & female adults, hemlock sawfly. [Year estimated.] Male & female adults, hemlock sawfly. [Year estimated.]](/rds/imagedb/images/_thm/31636.jpg)
![Hemlock sawfly parasite, adult Hymenoptera. [Year estimated.] Hemlock sawfly parasite, adult Hymenoptera. [Year estimated.]](/rds/imagedb/images/_thm/31637.jpg)