Notosacantha vicaria

Świętojańska, Jolanta & Borowiec, Lech, 2016, A new species of Notosacantha Chevrolat (Coleoptera: Chrysomelidae: Cassidinae) from Timor-Leste with a key to the Notosacantha vicaria - group, Zootaxa 4175 (3), pp. 274-280 : 279

Key to the species of the Notosacantha vicaria -group

1. Anterior branch of dorsal costa placed outwardly in relation to posterior branch................................... 2.

- Anterior branch of dorsal costa placed inwardly in relation to posterior branch. Halmahera...... halmaherana Świętojańska

2. Antennae slim with club only slightly wider than pedicel and segments 8–10 not or only slightly wider than long........ 3.

- Antennae stout with club distinctly wider than pedicel and segments 8–10 distinctly wider than long.................. 5.

3. Pronotum mostly black................................................................................ 4.

- Pronotum yellow to reddish-yellow. Described from “Indes Orientales”............................ flavicornis (Spaeth)

4. Ventrites and legs yellow, antennal segment 8 slightly longer than wide. Sumba.... sumbawaensis Świętojańska & Borowiec

- Ventrites and legs mostly black, antennal segment 8 slightly wider than long. Timor-Leste............. timorensis sp. nov.

5. Furca interna not connected with lateral branch of dorsal costa................................................. 6.

- Furca interna connected with lateral branch of dorsal costa. Sulawesi ............................... reinecki (Spaeth)

6. Smaller species, length below 5 mm. Humeral spot rectangular................................................ 7.

- Large species, length above 6.5 mm. Humeral spot diagonal. Sulawesi .......................... sulawesica Borowiec

7. Costa ultima reduced to isolated short fold or tubercle........................................................ 8.

- Costa ultima complete or short but connected with apical costa................................................ 9.

8. Furca interna distinct, ends close to lateral branch of dorsal costa. Apical point with short sutural branch. Elytral marginalia with distinct humeral and posterolateral spots. Java and Sumatra ................................... weyersi (Spaeth)

- Furca interna very short. Apical point without sutural branch. Elytral marginalia mostly black with pale fenestral spot. South China and Laos................................................................... nigrodorsata Chen & Zia

9. Elytra only with costae, no remnants of tubercles, costae blunt. Spots on elytral marginalia very short extend at most to 1/3 width of the explanate margin.......................................................................... 10.

- Elytral tubercles very small but marked, costae sharp. Spots on elytral marginalia extend to 2/3 width of the explanate margin. Ceylon, India, Andamanes................................................................. vicaria (Spaeth)

10. Furca externa and costa ultima short but well visible. Thailand...................... kantneri Świętojańska & Borowiec

- Furca externa and costa ultima rudimental. Meghalaya in India.................................. dembickyi Sekerka