Vespula pensylvanica
Western Yellowjacket
Photo: (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow (iNaturalist)
94
Bishop specimens
0
Type specimens
1919
First collected
1991
Last collected
2026
Last seen alive in Hawaiʻi
In the Library
Bishop Museum publications whose pages name Vespula pensylvanica, most mentions first.
2011
Dietary analysis of the invasive lizard Chameleo jacksonii from a wet forest habitat in HawaiiKraus, F & Preston, D. · Contribution to the Hawaii Biological Survey · 2 pages
2010
Diet of Chamaeleo jacksonii (Squamata: Chamaeleonidae) in a dry forest on MauiKraus, F. Medeiros, A.C. & Preston · Contribution to the Hawaii Biological Survey · 1 page
2007
Monitoring for terrestrial arthropods (insects and relatives) within the Kahului Airport environs, Maui, Hawai`i, Phase II. Final report prepared for E.kHowarth, F.G. & Preston, D.J. · Contribution to the Hawaii Biological Survey · 1 page
2002
Index to the Records of the Hawaii Biological Survey for the years 1994 through 2000Evenhuis, N.L. · Contribution to the Hawaii Biological Survey · 1 page
2000
Records of the Hawaii Biological Survey for 1994–2000: IndexEvenhuis, N.L. & Eldredge, L.G. (eds) · Records of the Hawaii Biological Survey · 1 page
Two centuries of collecting
The oldest Bishop specimen was collected in 1919 by Kusche, J. A. (Kokee). The Museum last collected it in 1991; iNaturalist observers have seen it in the wild as recently as October 23, 2026.
Alive today
88 research-grade iNaturalist sightings in the wild in Hawaiʻi since 2000. Most recent first.
2026-10-23
Maui, Kula, HI, US
(c) kayanisingh, some rights reserved (CC BY-NC)
2026-09-24
Honokaa, HI, US
(c) badewitt, some rights reserved (CC BY-NC)
2026-09-18
Hawaiʻi Volcanoes National Park, Hawaii, USA
(c) pickin, some rights reserved (CC BY-NC)
2026-08-13
Hawaii County, US-HI, US
(c) Kellen Apuna, some rights reserved (CC BY-NC)
2026-07-09
Kīlauea Iki Trail, Pahoa, HI, US
(c) Tim Guida, some rights reserved (CC BY-NC)
2026-01-15
Nāhuku Trail, Pahoa, HI, US
(c) mhmcd, some rights reserved (CC BY-NC)
2025-12-25
Hawaii, Hawaii, United States
(c) Kevin Chiang, some rights reserved (CC BY-NC)
2025-11-30
Hawaiʻi Volcanoes National Park, HI, USA
(c) Ellen, some rights reserved (CC BY-NC)