Cissidium amboroensis, Darby, Michael, 2015

Darby, Michael, 2015, Studies of Bolivian Ptiliidae (Coleoptera) 1: The genus Cissidium Motschulsky with six new species, Zootaxa 3937 (1), pp. 179-190 : 183

Cissidium amboroensis sp. n.

Figures 2 , 11 , 14 , 24 , 28, 31 , 37 , 42a–b

Habitus Fig. 2 . Length 0.73–0.78 mm. Colour dusky yellow, legs and antennae a little paler. Antennomeres 3–11 0.40 mm long male, 0.37 mm long female, male antennomere 11 thicker and more densely setiferous than female, Fig. 24 . Width across eyes 0.21 mm. Mentum Fig. 28 . Pronotum 0.29–0.31 mm wide, 0.19–0.20 mm long, shining, pubescence finer and more scattered than on elytra, posterior margin sinuous before hind angles, Fig. 14 . Elytra 0.46–0.47 mm long, 0.38 mm wide. Mesoventral collar not reaching shoulders and mesoventral keel tapering to a point between mesocoxae, Fig. 11 . Posterior margin of metaventrum between metacoxae with two medium length points. Male with 15 short, thick, blunt setae on ventrite VIII, Fig. 31 . Spermatheca slightly ovoid, Fig. 37 . Aedeagus Fig. 42a–b.

Etymology. Named after the Amboro National Park where the species was found.

Diagnosis. The form of antennomere 11 with a short median interruption and the sinuate posterior margin of the pronotum before the hind angles will distinguish this species.

Type material. Holotype: ♀, GPS 32, BOL / Nov 2013/09, BOLIVIA 2013 SANTA CRUZ dep., W Amboro NP, Siberia Pass env., 2450m, 28.xi., S. 17°50'12" E.64°42'08", sifting litter, Winkler app. extr., P. Baňař lgt. ( UASC). Paratypes: 2♀ same data as holotype ( MMBC, BMNH); 1 example, GPS 31, BOL / Nov 2013/08, BOLIVIA 2013 SANTA CRUZ dep., W Amboro NP, Siberia Pass env., 2481m, S. 17°50'25" E. 64°41'58", sifting litter, Winkler app. extr., P. Baňař lgt. ( BMNH).

Figures

FIGURES 2 – 7. 2. Cissidium amboroensis sp. n ... 3. C. globosum sp. n .. 4. C. petri sp. n .. 5. C. elongatum sp. n .. 6. C. tigrum sp. n .. 7. C. lisae sp. n ..

FIGURES 8 – 13. Cissidium mesoventrums. 8. C. elongatum sp. n .. x 610. 9. C. globosum sp. n .. x 755. 10. C. tigrum sp. n .. x 860. 11. C. amboroensis sp. n .. x 745. 12. C. petri sp. n .. x 705. 13. C. lisae sp. n .. x 1140.

FIGURES 14 – 19. Cissidium pronota. 14. C. amboroensis sp. n .. 15. C. elongatum sp. n .. 16. C. lisae sp. n .. 17. C. tigrum sp. n .. 18. C. globosum sp. n .. 19. C. petri sp. n.

FIGURES 20 – 25. Cissidium antennae. 20. C. globosum sp. n. female. 21. C. elongatum sp. n. female. 22. C. petri sp. n. female. 23. C. lisae sp. n. female. 24. C. amboroensis sp. n. male. 25. C. tigrum sp. n. male.

FIGURES 26 – 35. 26. Cissidium petri sp. n .. mentum x 1380. 27. C. tigrum sp. n .. mentum x 1220. 28. C. amboroensis sp. n .. mentum x 1260. 29. C. petri sp. n .. abdominal ventrites x 1580. 30. C. petri sp. n .. anterior border of labrum x 4950. 31. C. amboroensis sp. n .. abdominal ventrites x 1380. 32. C. globosum sp. n .. posterior margin of metaventrum showing long points x 500. 33. C. lisae sp. n .. posterior margin of mentaventrum showing short points x 460. 34. C. tigrum sp. n .. mesoventral keel, horizontal view x 840. 35. C. elongatum sp. n .. mesoventral keel x. 680.

FIGURES 36 – 40. Cissidium spermathecae. 36. C. petri sp. n .. 37. C. amboroensis sp. n .. 38. C. elongatum sp. n .. 39. C. lisae sp. n .. 40. C. globosum sp. n ..