Phytoecia cylindrica (Linnaeus, 1758)       Notable B
An english species with most records south of the Wash and east of the Severn estuary. There is a single modern record from a few miles north of the Humber estuary. Old records exist from the west country, north Wales and the midlands. Very local but may be common where found. Adults are active in hot sunshine on or around umbels, vigorous sweeping is the best method of finding them as they move rapidly at the slightest disturbance. Although they are sometimes seen on the flowers it is more productive to search among the stems where they may be seen crawling rapidly up and down. Species reported as attacked by the beetle are Bur Chervil (A.caucalis)(Twinn and Harding), Cow Parsley (Anthriscus sylvestris), Chervil (Chaerophyllum tenulentum), Hogweed (Heracleum sphondylium) and Wild Carrot (Daucus carota) (All Hickin). Eggs are laid singly in the stem below the inflorescence and the larva bores into the pith eventually hollowing out the whole stem. Around three months are spent in the larval stage, pupation occurs in the autumn and the winter is passed in the adult stage. Adults emerge from the stems from March onward and may be found until at least July. Common around Watford from umbels in open sunny positions, mostly parkland, wasteland, golf courses etc. Noticeably absent from woodland (2006/7). Also common south of Watford along the Colne valley through Rickmansworth, Uxbridge and Cowley.

6-10mm. Completely dark leaden grey to black but for the profemora and tibiae which are almost entirely orange or yellow. Head vertically inclined to body axis. Clypeus and around eyes with dense light grey pubescence. Eyes entire, produced around and behind antennal tubercles. Terminal segment of palpi pointed. Pronotum elongate and cylindrical, without side borders, spines or sculpture and with front and hind margins finely bordered. Elytra with prominent shoulders and gradually tapering, with 3 longitudinal ridges; one at suture, one lateral to this and one on side not visible from above. Apices obliquely truncate. Entire upper surface closely punctured and somewhat shiny. Elytra with dense recumbent fine grey pubescence, that on head and pronotum dark, longer and erect. Claws strongly toothed at base.

Description from 1 Watford specimen at X10