Inostemma is a genus of parasitoid wasps belonging to the family Platygastridae.

The genus has cosmopolitan distribution.

Species:

• Inostemma abnormale Tomsík, 1950
• Inostemma abnorme Perkins, 1910
• Inostemma ambilobei (Risbec, 1955) - endemic to Madagascar
• Inostemma bonessi Buhl, 2006
• Inostemma contariniae Szelenyi, 1938 - West Palearctic distribution
• Inostemma discessus Szelenyi, 1939
• Inostemma matsutama - found in Asia
• Inostemma melicerata Walker, 1835
• Inostemma menippus Walker, 1835
• Inostemma seoulis - found in Asia
• Inostemma transversiceps Buhl, 2015 - endemic to Madagascar

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