Main: (Geometridae / Sterrhinae)
70.010 [B&F: 1701] Dotted Border Wave (Idaea sylvestraria) (Hübner, [1799])

 

Notes: Nationally scarce (Nb) in scrubby heathland, mostly in south-eastern England, with scattered colonies from Sussex to Yorkshire and Lancashire. In Hampshire and on the Isle of Wight scarce in the New Forest, north-east Hampshire and in the west and south-east of the Isle of Wight, with scattered records from elsewhere; some of these may have been unwarrantedly rejected, but there is no doubt other species are sometimes mistaken for it. Wingspan 20-23 mm. Apart from the very local Silky Wave I. dilutaria, which may also have small terminal dots on both wings, the main confusion species is Satin Wave I. subsericeata, which usually lacks terminal dots; Dwarf Cream Wave I. fuscovenosa has terminal dashes instead of dots. Larva feeds on Wild Thyme, Dyer's Greenweed and Petty Whin.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 12
     
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Percentage of Total Records

Total records
Max Percentage: 0.03633985
     
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Phenology - Adult Records

Max records: 29
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
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