Tetramorium caespitum (Linnaeus, 1758)

BELGIUM: • 8♀♀ (workers); N51.225° E4.380°; v/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 5 ♀♀ (workers) + 1 dealate gyne; N51.225° E4.380°; vi/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♂; N51.184° E4.419°; vi/2020; J. Jacobs leg.; coll. RBINS; pan trap (white); W. Dekoninck det. • 1 ♀ (worker); N51.251° E4.418°; vii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 11♀ (workers); N51.135° E4.251°; vii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 2 ♀♀ (workers); N51.218° E4.398°; vii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 3 ♀♀ (workers); N51.225° E4.380°; viii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 11 ♀ (workers); N51.160° E4.390°; viii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♂; N51.184° E4.419°; ix/2020; J. Jacobs leg.; coll. RBINS; pan trap (white); W. Dekoninck det. • 1 ♀ (worker); N51.160° E4.390°; ix/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♀ (worker); N51.135° E4.251°; iv/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 2 ♀♀ (workers); N51.225° E4.380°; v/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 2 ♀♀ (workers); N51.160° E4.390°; vi/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♀ (worker); N51.130° E4.253°; vii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 4 ♀♀ (workers); N51.130° E4.253°; vii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 22 ♀♀ (workers); N51.225° E4.380°; vii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 35 ♀♀ (workers); N51.160° E4.390°; vii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♀ (worker); N51.199° E4.459°; viii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♀ (worker); N51.130° E4.253°; viii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 3 ♀♀ (workers); N51.197° E4.463°; viii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 85 ♀♀ (workers); N51.160° E4.390°; viii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 11♀ (workers); N51.160° E4.390°; ix/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. [22 occ. (2 years), 9 roofs]

Remarks:

Tetramorium caespitum can be very abundant on sandy and thermophilic soils in Flanders (DEKONINCK et al., 2012). Together with Lasius niger it is often the first to establish in newly created sites on sandy soils.