Oedemera lurida (Marsham, 1802)

Male
A mostly southern English species with the majority of records from below a line joining the Severn estuary and the Wash west to somerset including the Isle of Wight, further west there are a few coastal records from north Devon and Cornwall and a single record from west Wales (Ceredigion). There a few scattered records from the midlands and a single northern record from south Cumbria (NBN) but these maps are very likely far from complete. Quoted by Joy simply as local (England), lurida is common and often abundant in the Watford area, the adults occur in just about any reasonably open habitat and are active in bright sunshine. They feed on the pollen and nectar of a wide variety of flowers and it would be pointless trying to list these although it may be interesting that we have not found the species when sweeping densely planted summer bedding displays. Adults occasionally appear on flowers from the beginning of April but our first records of them in any numbers are usually from Hawthorn a week or so before they bloom, beating or sweeping Hawthorn in flower will produce them in numbers. From early May they appear on flowers generally although in domestic gardens they seem to prefer wild flowers (weeds) over cultivated types. Various umbels, Taraxacum and Ranunculus flowers wil usually produce them during sunny weather as will long dry grass. They remain common through July and usually into August. Larvae develop in dead herbaceous stems; Centaurea, Eupatorium and Senecio are among recorded hosts. (Vazquez-Albalate, 2003).

Females of our other two Oedemera species may be mistaken for lurida in the field, with a little experience O.nobilis is very obviously different but the separation of lurida and virescens relies on very subtle characters and species will usually need to be examined under the microscope. See ID Aids for an account of the genus.

5-8mm. (Vazquez) (Buck gives 5-7.5mm and uses this to separate this species from O.virescens). Elongate, dull dark green species with long and slender appendages, somewhat resembling a cerambycid with deeply lobed penultimate tarsal segment but readily separated by the heteromerous tarsal formula 5-5-4. Entire upper surface with sparse, mostly recumbent, short white pubescence. Antennae 11 segmented and finely pubescent throughout, second segment much smaller than the rest which are very elongate; about as long as elytra in female, a little shorter in male. Inserted by front margin of eyes. Eyes entire, strongly convex and protruding. Head strongly rugose, dark metallic green or with a coppery reflection, front margin of clypeus testaceous. Narrowed and produced in front of eyes, temples narrowed from behind eyes. Pronotum quadrate, anteriorly rounded to a strong sub-basal constriction, hind margin sinuate. Depressed either side of middle in front half, raised either side of middle towards base, strongly rugose, vaguely and confluently punctate. Elytra with a central longitudinal raised line almost to apex, sutural and lateral margins similarly raised and with a shorter raised line in basal third. Entire surface strongly rugose or becoming granulate towards apex. Apices separately rounded or weakly angled. Legs dull metallic green, finely and densely pubescent. Penultimate segment of all tarsi deeply lobed, basal segment long; on hind tarsi longer than 2-4 combined. Hind femora enlarged in male; viewed from above front and hind margin oppositely convex, in female narrower and curved; from above front and hind margin more or less parallel.

Description from 2 male and 2 female Watford specimens.

Reference
Vazquez-Albalate. European fauna of Oedemeridae. Argania, 2003


Female

Female

Male

Aedeagus

Female sternites

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