Wallacea, Baly, 1859

Prathapan, K. D. & Shameem, K. M., 2017, A new species of Wallacea Baly (Coleoptera: Chrysomelidae: Cassidinae: Bothryonopini) infesting coconut palm in the Indian Ocean Islands of Andaman & Nicobar, Zootaxa 4347 (2), pp. 381-391 : 383

Key to the species of Indian Wallacea

1. Each elytron with a dark dorsal band, besides a marginal one..................................... W. limbata Gestro

- Each elytron without a dark dorsal band, marginal band faded or absent in some specimens........................... 2

2. Median endophallic sclerite polygonal in ventral view ( Fig. 25 ). Distal dorso-ventral endophallic sclerite with acutely pointed, long posterior end in ventral view ( Fig. 24, 25 ); confined to the Andaman Islands...................... W. jarawa n. sp.

- Median endophallic sclerite horse-shoe shaped in ventral view ( Figs 23 , 26 ); distal dorso-ventral endophallic sclerite with short, pointed posterior end ( Fig. 26 ); widely distributed in mainland India, absent in the Andaman and Nicobar Islands ........................................................................................ W. dactyliferae Maulik

Figures

FIGURES 24 – 28. 24 & 25) Endophallic sclerites in Wallacea jarawa n. sp., ventral view, 26) Endophallic sclerites in Wallacea dactyliferae, ventral view (specimen from Thiruvalangadu, Tamil Nadu, collected on 23 September 2016), 27 & 28) Endophallic sclerites in Wallacea jarawa n. sp., lateral view.

FIGURES 15 – 23. 15 – 22. Wallacea jarawa n. sp. 15) Spermatheca, 16) Coxites, tergum-VIII, tergum-IX (ventral view), 17) Coxites, tergum-VIII, tergum-IX (outspread view), 18) Spiculum gastrale, 19) Aedeagus, lateral view, 20) Aedeagus, apical foramen, 21) Aedeagus, ventral view, 22. Endophallic sclerites through the median lobe of aedeagus of Wallacea jarawa n. sp., 23. Wallacea dactyliferae. Endophallic sclerites of ‘ cotype’ through the median lobe of aedeagus.