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Bactericera crithmi Family: Triozidae (Formerly Trioza crithmi) Triozidae species have the three main veins in the forewing arising from a common point, and have usually pointed forewings with radular spinules. Many cannot be separated without dissection, but host-plants can be useful. Bactericera crithmi is unusually pale in colouring, being mostly yellow-orange (abdomen sometimes green) and  darkening only partly with age to produce dark brown dorsal patches. The  forwing is clear, with a long outer vein. Female terminalia are short and highly convex, falling almost vertically at the tip. Male parameres slender, somewhat hooked apically. A rare species on Crithmum maritimum around the coasts of southern England and Wales; may be present at most life stages throughout most of the year. The formation of pit galls is known, but is not reported universally (e.g. Hodkinson 2009; Journal of Natural History 43,65-179). Adult: All year? Length ~3 mm.

Adult: Cornwall (September 2012) ©Sally Luker