Hexatoma

Podeniene, Virginija & Gelhaus, Jon K., 2015, Review of the last instar larvae and pupae of Hexatoma (Eriocera) and Hexatoma (Hexatoma) (Diptera, Limoniidae, Limnophilinae), Zootaxa 4021 (1), pp. 93-118 : 95

Key to the known pupae of Hexatoma of Mongolia

1. Cephalic crest consists of one pair of horns ( Fig. 59 ). Sheaths of legs reach posterior margin of third abdominal segment ( Fig. 58, 59 ).................................................... Hexatoma (Hexatoma) nubeculosa (Burmeister, 1829)

- Cephalic crest consists of two pairs of horns ( Fig. 34 ). Sheaths of legs shorter, ending before posterior margin of third abdominal segment ( Fig. 36 , 46 )................................................................................ 2

2. Sheaths of legs reach two thirds of third abdominal segment ( Fig. 46 ). Antennal sheath of male very long, almost reaching to tips of the legs. Antennal sheath of female shorter, reaching tips of wings.. Hexatoma (Eriocera) ussuriensis Alexander, 1934

- Sheaths of legs shorter, reaching to the middle of third abdominal segment ( Fig. 36 ). Antennal sheaths of male shorter, reaching to tips of wings. Female pupa unknown.......................... Hexatoma (Eriocera) stackelbergi Alexander, 1933

Figures

FIGURES 58 – 62. Hexatoma (Hexatoma) nubeculosa. 58. General view of male pupa, lateral aspect. 59. General view of female pupa, lateral aspect. 60. Head of male pupa, ventral aspect. 61. Terminal segment of male pupa, dorsal aspect. 62. Terminal segment of female pupa, lateral aspect.

FIGURES 34 – 38. Hexatoma (Eriocera) stackelbergi. 34. Head of male pupa, ventral aspect. 35. General view of male pupa, ventral aspect. 36. General view of male pupa, lateral aspect. 37. General view of male pupa, dorsal aspect. 38. Terminal segment of male pupa, dorsal aspect.

FIGURES 46 – 50. Hexatoma (Eriocera) ussuriensis. 46. General view of male pupa, lateral aspect. 47. General view of male pupa, dorsal aspect. 48. General view of female pupa, lateral aspect. 49. General view of female pupa, dorsal aspect. 50. Penultimate segment and terminal segment of female, lateral aspect.