Discoxenus latiabdominalis

Kanao, Taisuke & Maruyama, Munetoshi, 2015, Eight new species, a new record, and redescription of the genus Discoxenus Wasmann, 1904: The first record of termitophilous rove beetles in Cambodia (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 4044 (2), pp. 201-223 : 206

The latiabdominalis species group

Diagnosis. The latiabdominalis species group is defined by the following character states: 1) mandible ( Figs. 22, 23 , 41, 42 ) covered with more than 60 pores, 2) maxillary basistipes partially fused with palpifer ( Fig. 24 ), 3) sternite VIII ( Figs. 31, 32 , 47, 48 ) densely covered with minute pores anteriorly, 4) tergite X ( Figs. 33 , 49 ) with posterior third covered with a batch of setae, 5) median lobe of male aedeagus ( Figs. 34, 35 , 50, 51 ) with basal capsule large, and 6) basal capsule with distal crest weakly developed.

Comment. The latiabdominalis species group includes D. latiabdominalis n. sp. and D. cambodiensis n. sp.

Figures

FIGURES 19 – 37. Discoxenus latiabdominalis n. sp.: 19. Head, 20. Antenna, 21. Labrum (left side = dorsal view, right side = ventral view), 22. Mandible, left, 23. Mandible, right, 24. Maxilla, 25. Mentum, 26. Labium, 27. Pronotum, 28. Elytron, right, 29. Meso- and metaventrites, 30. Tergite VIII, 31. Sternite VIII, male, 32. Sternite VIII, female, 33. Tergites IX and X, 34. Median lobe of aedeagus, ventral view, 35. Median lobe of aedeagus, lateral view, 36. Paramere, 37. Spermatheca (ap: apical part, bp: basal part).

FIGURES 38 – 53. Discoxenus cambodiensis n. sp.: 38. Head, 39. Antenna, 40. Labrum (left side = dorsal view, right side = ventral view), 41. Mandible, left, 42. Mandible, right, 43. Mentum, 44. Pronotum, 45. Elytron, right, 46. Tergite VIII, 47. Sternite VIII, male, 48. Sternite VIII, female, 49. Tergites IX and X, 50. Median lobe of aedeagus, ventral view, 51. Median lobe of aedeagus, lateral view, 52. Paramere, 53. Spermatheca.