Status and Trend of Regal Fritillary (Speyeria idalia) (Lepidoptera: Nymphalidae) in the 4th of July Butterfly Count Program in 1977–2014

Table 4

Number of circles in each category of Regal abundance (calculated as total Regal individuals reported per total party-hours), mean and median year that a count was last reported from those circles, and that Regal Fritillary was last reported in those circles. Spearman rank correlations of total Regal individuals per total party-hours per circle with last year reported (, ) and with last year Regal reported (, ) and with number of years reported (, ), for all.

Total Regals per party-hours	N	Last year reported		Last year Regal found		Median number of years reported
	Circles	Mean	Median	Mean	Median
124–160	3	1997.3	1997	1997.3	1997	4
11–50	8	1999.9	1996.5	1999.9	1996.5	3
1–8	12	2007.4	2007.3	2012	2011.5	9
0.1–0.8	13	2001.2	2000.4	2004	2004	10
0.01–0.09	11	2008.6	2003.4	2014	2007	17
0.001–0.009	13	2011.9	2001.1	2014	2003	18