2024 Annual Butterfly Report

We would like to thank everyone who sent in records in 2024, which really do make a positive difference when it comes to making informed conservation decisions. Whether your contribution is the occasional record or contribution to a transect that is walked week in and week out, your records are very much appreciated.

2024 Summary

Below is a summary of 2024, with links to individual species provided below. In the tetrad coverage chart (a tetrad is an area of 2 km by 2 km), the darker the circle, the greater the recording effort, based on a logarithmic scale. This methodology better illustrates the 'cold spots' that require more targeted effort in coming field seasons. If you would like more information regarding unrecorded tetrads then please contact the County Butterfly Recorder.

#Records	102,330
#Individuals	340,242
#Tetrads (populated)	1,033
#Species	48
#Recorders	3,810

2024 Trends

			#Individuals			#Tetrads
Vernacular Name	Code	Priority	2023	2024	Abundance Trend	2023	2024	Distribution Trend
Adonis Blue	61.019	High	1054	613	-41%	28	23	-17%
Brimstone	58.013	Low	27488	17182	-37%	814	710	-12%
Brown Argus	61.015	Low	6383	1667	-73%	237	126	-46%
Brown Hairstreak	61.003	High	922	98	-89%	42	69	+64%
Chalk Hill Blue	61.020	Medium	15155	8746	-42%	61	43	-29%
Clouded Yellow	58.010	Low	202	52	-74%	85	25	-70%
Comma	59.031	Low	7914	4276	-45%	777	625	-19%
Common Blue	61.018	Low	13902	8235	-40%	696	455	-34%
Dark Green Fritillary	59.019	High	1707	607	-64%	82	48	-41%
Dingy Skipper	57.001	High	1200	935	-22%	66	59	-10%
Duke of Burgundy	60.001	Top	645	431	-33%	29	16	-44%
Essex Skipper	57.005	Medium	1141	702	-38%	135	105	-22%
Gatekeeper	59.011	Low	73311	50569	-31%	881	831	-5%
Glanville Fritillary	59.034	Top	724	679	-6%	18	21	+16%
Grayling	59.013	High	1459	1242	-14%	62	64	+3%
Green Hairstreak	61.005	Low	431	512	+18%	88	95	+7%
Green-veined White	58.008	Low	4342	3313	-23%	527	486	-7%
Grizzled Skipper	57.002	High	930	609	-34%	58	48	-17%
Holly Blue	61.012	Low	13013	2254	-82%	723	421	-41%
Large Skipper	57.009	Low	7350	4078	-44%	314	280	-10%
Large Tortoiseshell	59.029	Low	11	1	-90%	10	1	-90%
Large White	58.006	Low	30159	14507	-51%	881	788	-10%
Long-tailed Blue	61.008	Low	40	6	-85%	5	2	-60%
Marbled White	59.012	Low	21842	14337	-34%	510	465	-8%
Marsh Fritillary	59.033	Top	364	273	-25%	12	12	0%
Meadow Brown	59.010	Low	135667	108271	-20%	884	849	-3%
Orange-tip	58.003	Low	2526	2637	+4%	367	373	+1%
Painted Lady	59.024	Low	2002	917	-54%	482	337	-30%
Peacock	59.026	Low	25435	10830	-57%	870	760	-12%
Pearl-bordered Fritillary	59.014	Top	912	324	-64%	10	9	-10%
Purple Emperor	59.022	High	170	81	-52%	27	20	-25%
Purple Hairstreak	61.004	Low	445	497	+11%	77	67	-12%
Red Admiral	59.023	Low	41633	9946	-76%	953	800	-16%
Ringlet	59.009	Low	13729	13106	-4%	496	480	-3%
Silver-spotted Skipper	57.008	High	268	264	-1%	15	12	-20%
Silver-studded Blue	61.014	High	8953	6987	-21%	100	86	-14%
Silver-washed Fritillary	59.017	Low	4777	1783	-62%	227	160	-29%
Small Blue	61.010	High	2094	977	-53%	67	45	-32%
Small Copper	61.001	Low	4686	1967	-58%	586	430	-26%
Small Heath	59.005	Low	11196	9785	-12%	301	270	-10%
Small Skipper	57.006	Low	8110	3882	-52%	342	275	-19%
Small Tortoiseshell	59.027	Low	2386	753	-68%	506	307	-39%
Small White	58.007	Low	40785	16195	-60%	890	791	-11%
Speckled Wood	59.003	Low	17989	14193	-21%	668	637	-4%
Swallowtail	56.003	Low	0	3	N/A	0	1	N/A
Wall	59.002	Top	352	199	-43%	57	47	-17%
White Admiral	59.021	Medium	1191	573	-51%	116	104	-10%
White-letter Hairstreak	61.006	High	270	148	-45%	29	24	-17%

2024 Records

Vernacular Name	Code	Priority	#Tetrads	#Records	#Individuals	Earliest Record	Latest Record
Adonis Blue	61.019	High	23	194	613	8/5/2024	20/9/2024
Brimstone	58.013	Low	710	7,776	17,182	1/1/2024	18/12/2024
Brown Argus	61.015	Low	126	738	1,667	5/5/2024	4/10/2024
Brown Hairstreak	61.003	High	69	198	98	29/7/2024	20/9/2024
Chalk Hill Blue	61.020	Medium	43	695	8,746	7/7/2024	28/9/2024
Clouded Yellow	58.010	Low	25	42	52	15/2/2024	4/10/2024
Comma	59.031	Low	625	3,143	4,276	24/1/2024	13/11/2024
Common Blue	61.018	Low	455	3,097	8,235	27/4/2024	18/10/2024
Dark Green Fritillary	59.019	High	48	267	607	17/6/2024	1/9/2024
Dingy Skipper	57.001	High	59	319	935	30/4/2024	10/8/2024
Duke of Burgundy	60.001	Top	16	130	431	12/4/2024	7/6/2024
Essex Skipper	57.005	Medium	105	291	702	12/6/2024	21/8/2024
Gatekeeper	59.011	Low	831	10,759	50,569	11/6/2024	28/9/2024
Glanville Fritillary	59.034	Top	21	153	679	15/5/2024	7/7/2024
Grayling	59.013	High	64	430	1,242	27/6/2024	26/9/2024
Green Hairstreak	61.005	Low	95	300	512	11/4/2024	21/6/2024
Green-veined White	58.008	Low	486	2,154	3,313	4/4/2024	19/10/2024
Grizzled Skipper	57.002	High	48	269	609	17/4/2024	29/6/2024
Holly Blue	61.012	Low	421	1,700	2,254	17/3/2024	24/10/2024
Large Skipper	57.009	Low	280	1,617	4,078	20/5/2024	27/8/2024
Large Tortoiseshell	59.029	Low	1	1	1	12/4/2024	12/4/2024
Large White	58.006	Low	788	7,342	14,507	20/3/2024	11/11/2024
Long-tailed Blue	61.008	Low	2	5	6	18/9/2024	24/10/2024
Marbled White	59.012	Low	465	3,277	14,337	3/6/2024	23/8/2024
Marsh Fritillary	59.033	Top	12	56	273	9/5/2024	17/6/2024
Meadow Brown	59.010	Low	849	15,152	108,271	21/5/2024	17/10/2024
Orange-tip	58.003	Low	373	1,668	2,637	25/3/2024	23/6/2024
Painted Lady	59.024	Low	337	721	917	27/1/2024	14/12/2024
Peacock	59.026	Low	760	5,512	10,830	13/1/2024	29/12/2024
Pearl-bordered Fritillary	59.014	Top	9	108	324	9/5/2024	11/6/2024
Purple Emperor	59.022	High	20	39	81	25/6/2024	4/8/2024
Purple Hairstreak	61.004	Low	67	200	497	18/6/2024	28/8/2024
Red Admiral	59.023	Low	800	6,657	9,946	1/1/2024	19/12/2024
Ringlet	59.009	Low	480	3,379	13,106	12/6/2024	28/8/2024
Silver-spotted Skipper	57.008	High	12	44	264	27/7/2024	1/9/2024
Silver-studded Blue	61.014	High	86	786	6,987	25/5/2024	3/9/2024
Silver-washed Fritillary	59.017	Low	160	886	1,783	12/6/2024	4/9/2024
Small Blue	61.010	High	45	302	977	7/5/2024	21/9/2024
Small Copper	61.001	Low	430	1,234	1,967	18/4/2024	27/10/2024
Small Heath	59.005	Low	270	3,088	9,785	5/5/2024	4/10/2024
Small Skipper	57.006	Low	275	1,109	3,882	12/6/2024	15/9/2024
Small Tortoiseshell	59.027	Low	307	574	753	1/1/2024	17/10/2024
Small White	58.007	Low	791	7,783	16,195	3/3/2024	31/10/2024
Speckled Wood	59.003	Low	637	7,622	14,193	15/2/2024	26/11/2024
Swallowtail	56.003	Low	1	3	3	22/6/2024	28/9/2024
Wall	59.002	Top	47	122	199	29/4/2024	5/11/2024
White Admiral	59.021	Medium	104	334	573	16/6/2024	16/9/2024
White-letter Hairstreak	61.006	High	24	56	148	9/6/2024	9/8/2024