. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 9: 1996 The posterior extremities of the elytra are truncated in both species, usually being square and simple in simplex but concave and emarginate in vulgaris. Examination of genital morphology may sometimes be necessary (see Fig. K41). A common, widespread species with post-1970 records for Scotland, and all regions of Wales and England except the North East. 6 Donacia vulgaris Zschach. VICE-COUNTY DISTRIBUTION PRE 1970 (= 26): 6; 10; 11; 13; 14; 15; 17; 18; 19; 20; 21; 22; 23; 26;
. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. HIST., 9: 1996 The posterior extremities of the elytra are truncated in both species, usually being square and simple in simplex but concave and emarginate in vulgaris. Examination of genital morphology may sometimes be necessary (see Fig. K41). A common, widespread species with post-1970 records for Scotland, and all regions of Wales and England except the North East. 6 Donacia vulgaris Zschach. VICE-COUNTY DISTRIBUTION PRE 1970 (= 26): 6; 10; 11; 13; 14; 15; 17; 18; 19; 20; 21; 22; 23; 26; 27; 28; 29; 33; 34; 41; 52; 61; 62; 64; 83; 84. 1970 ONWARDS (= 36): 3; 4; 5; 6; 8; 9; 11; 12; 13; 14; 15; 16; 17; 15; 21; 22; 23; 24; 27; 28;29; 31; 32; 33; 38; 39; 41;44;51;52; 53; 55; 64; 70; 104; 110. 1970 ONWARDS 7. Donacia aquatka (Linnaeus, 1758) ( = dentipes Fabricius, 1792) Status: RDB 3 (Latin: aquatka, of water). L = ; Plate I, Figure 7. Uncommon in the UK, this species is found, usually in small numbers, by sweeping areas of aquatic vegetation dominated by sedges such as Carex acutiformis Ehrh. at the margins of open water (lakes and fens) during May and June. Unlike D. thalassina and D. impressa, it does not appear to be attracted to the flowers of sedge. Now one of our rarest, this small donaciine is also one of our most beautiful species. The undersurface, legs and thorax are of shining gold, while the elytra are adorned with a broad reddish-purple longitudinal band of rainbow brilliance, commencing light blue between the sutural borders and first stria, then green (interstice 2), purple (interstices 3 5), red (interstices 6-7), pale gold (interstice 8), green (interstice 9) and finally a pale green-blue up to the lateral elytral borders. A widespread but local species with records for , , and Scotland, N. and S. Wales, and most regions of England. Post-1970 records show a considerable decline and are from , and Scotland,
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