Reproductive Interference and Niche Partitioning in Aphidophagous Insects

Table 3

Conifer-associated specialist ladybird species in the UK and Japan.

Species	Detail	Sympatric congeners
UK
Exochomus quadripustulatus	Coccids on needleleaf conifers, sallows, and willows	NA^1
Myrrha octodecimguttata	Aphids on Scots pine	NA
Sospita (Myzia) oblongoguttata	Aphids on Scots pine	NA
Harmonia quadripunctata	Aphids on needleleaf conifers	H. axyridis^2
Anatis ocellata	Aphids on needleleaf conifers, particularly pines	NA
Scymnus nigrinus	Scots pine	S. schmidti and other species^3
Scymnus suturalis	Needleleaf conifers, particularly Scots pine, but occasionally deciduous trees	S. schmidti and other species
Japan
Harmonia yedoensis	Aphids on Japanese red pine and Japanese black pine	H. axyridis
Sospita (Myzia) oblongoguttata	Pine trees	NA
Oenopia scalaris	Pine trees	O. hirayamai

Information on UK ladybirds was adapted from Roy et al. [35] and Majerus [36]; information on Japanese ladybirds was adapted from Sasaji [24] and Shiyake [37]. indicates that no congeneric species is distributed in the same region; . axyridis is an exotic species in the UK; to Table 2 for other Scymnus species.