Captures by the network of traps run by the Rothamsted Insect Survey are shown below:

Cavariella aegopodi	Inverness	Dundee	Edinburgh	Ayr	Newcastle	FERA, York	Preston	Kirton	Broom's Barn	Wellesbourne	Hereford	Rothamsted	Writtle	Ascot	East Malling	Starcross	Total
Week ending
07-Apr					0	0		0	0	0	0	0	0	0	0	0	0
14-Apr					0	0		0	0	0	0	0	0	0	0	3	3
21-Apr					0	0		0	0	0	0	0	0	0	0	0	0
28-Apr		0	0		0	0		1	0	0	0	0	0	2	0	1	4
05-May		0	0	0	0	5		15	30	3	0	4	7	3	4	4	75
12-May					3	35		35	140	14	1	14	39	8	6	4	299
19-May		5	2	0	1	39		87	28	4	6	6	23	1	4	5	211
26-May	2	9	0	4	1	13		25	9	7	2	5	7	1	4	4	93
02-Jun	0	20	10	1	2	0		5	2	1	0	1	1	1	1	4	49
09-Jun	0	1	3	0	0	1		5	2	4	0	1	1	2	4	0	24
16-Jun	0	1	1	0	2	6		6	4	4	0	1	3	1	0	5	34
23-Jun	0	0	1	0	7	4		15	13	10	2	6	9	3	2	9	81
30-Jun					3	6		5	8	4	1	12	4	5	4	14	66
07-Jul		7	1		7	1		6	5	0	0	1	0	1	0	8	37
14-Jul	2	4	1		10	1		4	8	1	3	2	0	2	0	3	41
21-Jul	1	3	5		5	1		5	6	2	1	2	3	3	0	2	39
28-Jul	19	0	1		1	0		4	4	3	0	1	0	0	2	3	38
04-Aug	0	0	1		0	1		2	0	2	2	0	0	1	0	3	12
11-Aug	0	0	0	1	0	2		0	0	0	1	1	0	0	0	0	5
18-Aug	0	1	0	0	0	0		2	0	0	0	0	0	0	0	0	3
25-Aug	0	0	0	0	1	0		0	0	1	0	0	0	0	0	0	2
01-Sep	0	0	1		0	5		2	0	0	0	2	0	0	0	1	11
08-Sep	0	0	1		0	31		1	0	0	0	1	2	0	0	2	38
15-Sep					0	15		4	0	1	0	0	0	0	0	0	20
22-Sep					1	64		0	7	0	9	1	1	0	1	0	84
29-Sep					1	70		8	5	3	0	0	0	0	0	1	88
06-Oct					0	290		5	14	0	1	2	1	0	1	2	316
13-Oct			0	0	2	2611		15	9	5	0	0	1	0	0	9	2652
20-Oct					2	1112		40	0	1	0	0	1	0	1	4	1161