Tytthaspis sedecimpunctata is a species of beetle in the family Coccinellidae. Its common English name is the sixteen-spot ladybird. It is found in the Palearctic - Europe, North Africa, European Russia, the Caucasus, Belarus, Ukraine, Moldova, Transcaucasia, Northern Kazakhstan, Western Asia and Northwest China.[1] [2] It is an inhabitant of the grass layer occurring on dunes, inland dunes, sandy shores and bodden, in Eurasian steppe or on wastelands and dry meadows and occasionally in marshy meadows.[3] It is recorded as feeding on aphids but also on Pucciniales and powdery mildew, on the pollen on Gramineae, Compositae, and Convolvulaceae, and also on mites and thrips (Thysanoptera) [4] [5]
The 16-spot frequently forms very large aggregations on tree trunks, fence posts, logs and so on during winter.[6] It is a small ladybird of around 2-3mm. It is usually a cream or beige colour, although darker forms do occur. It has a distinctive dark line on the middle of its elytra, and its spots are often fused, with three fused spots often forming a line on either side of the ladybird.