Results of Browder Ridge 4th of July Butterfly Count, 9th year

July 24, 2010
Compiler: Donald Gudehus, NABA Eugene-Springfield
37 Species Total

Group 1: Roads 15 and 2650 (Wolf Rock, Frissell Ridge) Group 2: Iron Mountain Trail

Common Name	Group 1* Subtotal	Group 2** Subtotal	Species Total
Clodius Parnassian	46	13	59
Western Tiger Swallowtail	15	2	17
Pale Swallowtail	11	7	18
Western White	1	2	3
Margined White	1	0	1
Sara's Orangetip	1	0	1
Orange Sulphur	3	0	3
Blue Copper	1	0	1
Lilac-bordered Copper	2	2	4
Mariposa Copper	3	0	3
Sheridan's Hairstreak	1	0	1
Nelson's Juniper Hairstreak	5	0	5
Western Tailed-blue	2	3	5
Dotted Blue	8	21	29
Silvery Blue	3	0	3
Northern Blue	7	7	14
Anna's Blue	2	0	2
Greenish Blue	1	0	1
Boisduval's Blue	14	15	29
Acmon Blue	1	0	1
Great Spangled Fritillary	1	1	2
Hydaspe Fritillary	2	7	9
Pacific Fritillary	8	10	18
Hoffman's Checkerspot	8	9	17
Field Crescent	4	2	6
Mylitta Crescent	3	0	3
'Snowberry' Variable Checkerspot	73	130	203
Edith's Checkerspot	0	4	4
Painted Lady	1	0	1
Lorquin's Admiral	17	3	20
California Sister	1	0	1
Great Arctic	6	1	7
Silver-spotted Skipper	1	0	1
Propertius Duskywing	1	0	1
Persius Duskywing	2	3	5
Two-banded Checkered Skipper	1	0	1
Arctic Skipper	1	0	1
SUB-TOTAL INDIVIDUALS	258	242	500
NUMBER OF SPECIES	36	19	37
Blue sp.	11	0	11
Checkerspot sp.	33	0	33
Lorquin's Admiral or Calif. Sister	2	0	2
Lycaena sp.	1	0	1
Orange sp.	1	0	1
Papilio sp.	2	0	2
Speyeria sp.	10	0	10
Unknown Butterflies	23	0	23
TOTAL INDIVIDUALS	341	242	583
Elegant Sheep moth	13	0	13

* Group 1: This group did the driving/walking route that starts on Forest Service Road 15 near Blue River Reservoir, proceeds past Mann Creek and Wolf Meadows, then turns onto Roads 2650 (Frissell Ridge) and 1506, passing through the H. J. Andrews Experimentral Forest.
Time spent: 7.5 hrs: 10:00 am - 5:30 pm
Weather: 70 - 85° F, full sun, wind 0 - 10 mph

The members of Group 1 were Ellie Ryan (leader), Alison Center (recorder), Tristan Center, Donald Gudehus, Jo von Hippel, Rick Ahrens, Yvonne Parkinson, Jim Frazier.

** Group 2: Starting from the trailhead at the end of Forest Service Road 35, this group hiked to the peak of Iron Mountain and returned.
Time spent: 5 hrs: 10:30 am - 3:30 pm
Weather: 75 - 85° F, full sun, wind 0 - 5 mph

The members of Group 2 were David Hagen (leader), Lois Hagen (leader and recorder), Lori Humphreys, Thea Evenstad, Andy Wise, Bonnie Richman, and Dennis Dick.