Telosticta, A New Damselfly Genus From Borneo And Palawan (Odonata: Zygoptera: Platystictidae) Author Dow, R. A. Author Orr, A. G. text Raffles Bulletin of Zoology 2012 2012-08-31 60 2 361 397 journal article 10.5281/zenodo.5348617 2345-7600 5348617 Key to males of Telosticta 1. S10 with a clump of long setae dorsally, interior projection of superior appendage absent ........................................ T. tubau – S10 without a clump of long setae dorsally, interior projection of superior appendage present .............................................. 2 2. Lateral processes of posterior pronotal lobe longer than half the distance from their origin to the lower margin of the propleuron ( Figs. 3A, D , 9 , 17A, B ) ....................................................... 6 – Lateral processes of posterior pronotal lobe shorter than half the distance from their origin to the lower margin of the propleuron ( Fig. 3B, C, E, F ) .................................................................. 3 3. Antehumeral stripes longer than half the length of the mesepisternum ( Fig. 4E, F ). Large species: abdomen 40 mm or more .................................................................... T. gading – Antehumeral stripes clearly less than half of the length of the mesepisternum ( Fig. 4B, C, G, H ). Smaller species: abdomen less than 40 mm .................................................................... 4 4. S8 black dorsally, superior appendage with interior projection barely developed but with a conspicuous clump of long setae originating on and around the projection ( Fig. 6E ) ................. ............................................................................. T. santubong – S8 with at least some blue dorsally, superior appendages with the interior projection better developed but without a clump of long setae originating on and around the projection ( Fig. 6B, F ) ........................................................................................... 5 5. Superior appendage with interior projection as in Fig. 6F , in lateral view abruptly down-turned apically at level of dorsal projection ( Fig. 7F ) .................................................. T. serapi – Superior appendage with interior projection as in Fig. 6B , in lateral view only slightly down-turned apically ( Fig. 7B ) ...... ............................................................................. T. dupophila 6. Interior projection of superior appendage nearly as long as the distance from the margin of S10 to the base of the projection ( Fig. 12D ) .............................................................. T. paruatia – Interior projection of superior appendage much shorter than the distance from the margin of S10 to the base of the projection ................................................................................................ 7 7. Tip of superior appendage with a conspicuous deep cleft or excision in lateral view (e.g., Fig. 13A–E ) ........................... 8 – Tip of superior appendage variously shaped but without such a cleft or excision ( Figs. 13F , 18C, D ), or at most a small notch, difficult to see from most angles ( Fig. 7A, C ) ................... 11 8. Lower arm of the cleft in end of superior appendage clearly shorter than upper arm in normal lateral view ( Fig. 13A, D, E ) ........................................................................................... 9 – Lower arm of the cleft of superior appendage ca same length as upper arm in normal lateral view ( Figs. 13B, C )... T. dayak 9. Arms of tip of superior appendage protruding interiorly, and continued as prominent ridges above the cleft, forming a deep groove between them, clearly visible in dorsal view ( Fig. 12E ) ..................................................................... T. ulubaram – Arms of tip of superior appendage only weakly expanded interiorly, so that only a shallow or no groove is visible in dorsal view ( Fig. 12A, C ) .................................................... 10 10. Pale dorsal marks on S8 and S9 ( Fig. 11D ), cleft in tip of superior anal appendage ‘V’ shaped ( Fig. 13D ) ...... T. kajang – Pale dorsal marks only on S8 ( Fig. 11A ), cleft in tip of superior anal appendage ‘U’ shaped ( Fig. 13A ) ................. T. berawan 11. Superior anal appendages with dorsal projection well developed and prominent in either lateral ( Fig. 13F ), or dorsal ( Fig. 18A ) view ...................................................................................... 12 – Superior anal appendage appendages with dorsal projection small and inconspicuous ..................................................... 13 12. Superior appendage conspicuously expanded from ca half length in both dorsal and lateral views ( Figs. 12F , 13F ), the dorsal projection large and directed dorsally, clearly visible in lateral view ( Fig. 12F ) ................................................. T. longigaster – Superior appendage only expanded in apical ca one quarter to one third (depending upon angle viewed from), the dorsal projection inwardly directed ( Fig. 18A ), not visible in lateral view ( Fig. 18C ) ............................................ T. belalongensis 13. Tip of superior appendage flattened, expanded and strongly folded over on its self to almost form a tube ( Fig. 18D ) ........ ................................................................................... T. janeus – Tip of superior appendage flattened laterally, but not strongly folded ................................................................................... 14 14. Interior projection of superior appendage placed at the point where the basal part of the appendage contracts ( Fig. 6C ), labrum only blue narrowly at base, blue markings on S8 and S9 dorsally ( Fig. 5C ) ............................................... T. feronia – Interior projection of superior appendage placed well distal to the point where the basal part of the appendage contracts ( Fig. 6A ), labrum mostly blue, blue marking only on S9 dorsally ( Fig. 5A ) ................................................................. T. bidayuh