Willowsia Shoebotham, 1917

Mandal, Pritha, Mandal, Guru Pada, Suman, Kusumendra Kumar & Bhattacharya, Kaushik Kumar, 2024, Two new species and one new record of Willowsia Shoebotham, 1917 (Collembola: Entomobryidae) from the Eastern Himalayan region of India, European Journal of Taxonomy 935, pp. 101-121 : 119

Key to the Indian species of Willowsia Shoebotham, 1917

1. Body scales with long basal rib ........................................................................................................ 2

– Body scales spinulate type ................................................................................................................ 3

2. Scales absent on ventral side of manubrium; Abd. I with 3+3 central mac......................................... ………………………………………...………… ..................... W. nigromaculata ( Lubbock, 1873)

– Scales present on ventral side of manubrium; Abd. I with 2+2 central mac ...................................... ................................................................................................................. W. arunachalensis sp. nov.

3. Th. II & Abd. I non-pigmented; scales present on legs .................................................................... 4

– Th. II & Abd. I laterally pigmented; scales absent on legs ......... W. shiae Pan, Zhang & Chen, 2006

4. Abd. III & Abd. IV non pigmented; Abd. II with 3+3 central mac .................................................... ......................................................................................... W. kalatopensis Baquero & Jordana, 2015

– Abd. III & Abd. IV pigmented; Abd. II with 5+5 central mac ..................... W. sikkimensis sp. nov.