Eurynassa, : Lacordaire, 1868

Jin, Mengjie, Keyzer, Roger De, Hutchinson, Paul, Pang, Hong & Ślipiński, Adam, 2020, A Review Of The Australian Macrotomini (Coleoptera: Cerambycidae: Prioninae), Annales Zoologici 70 (1), pp. 33-96 : 57

Key to the Australian species of Eurynassa

(males only)

1. Pronotum with median, shiny triangular areas very small ( Fig. 8E ); lateral carina weakly crenulate; abdominal ventrites 1–4 with deep pits near lateral margins.......................... E. stigmosa

–. Pronotum with median, shiny triangular areas larg- er, bowtie-shaped ( Fig. 8A ); lateral carina strongly dentate; abdominal ventrites 1–4 with smooth oval area near lateral margin...................... 2

2. Prothorax with very small granules among sexually dimorphic punctures ( Fig. 8L )... E. tuberculicollis

–. Prothorax without granules or tubercles among sexually dimorphic punctures.................... 3

3. Body broad, elytral length at most twice of width; labial palps short; mandible surface weakly concave ( Fig. 8I ); tarsomere 3 on front and mid leg strongly lobed; abdominal ventrite 5 completely covered with sexual punctures.................. E. australis

–. Body slender, elytra length at least twice of width; labial palps longer; mandible surface strongly concave ( Fig. 8J ); tarsomere 3 on front and mid leg with smaller lobe; abdominal ventrite 5 not fully covered with sexual punctures............... E. servillei

Figures

Figure 8. Eurynassa spp. A, B, I: E. australis (Boisduval); C, D, J: E. servillei Thomson; E, F: E. stigmosa (Newman); G, H, K, L: E. tuberculicollis sp. nov. A, C, E, G: male, dorsal; B, D, F, H: male, ventral; I, J: male mouthpart, dorsal, arrows indicate carinae on mandible; K: female, dorsal; L: male pronotum, dorsal.