Ametrodiplosis, Rubsaamen, 1910

Elsayed, Ayman Khamis, Yukawa, Junichi, Mochizuki, Ko, Tokuda, Makoto & Kawakita, Atsushi, 2021, Three new species of Ametrodiplosis (Diptera: Cecidomyiidae) from Japan, with a key to the Japanese species and a molecular phylogenetic analysis, Zootaxa 4942 (2), pp. 151-172 : 169-170

Key to Japanese Ametrodiplosis species

1- Male flagellomeres VIII–IX with bare constrictions ( Fig. 13 ); pupal antennal bases with tiny umbo-like protuberance ( Fig. 22 ); larval spatula with rounded lobes ( Fig. 24 )............................ A. adetos Elsayed, Yukawa & Tokuda , n. sp.

- Male flagellomeres VII–IX with bare constrictions ( Figs 30 , 49 ); pupal antennal bases with elongate protuberances; larval spatula with pointed lobes ( Figs 41 , 60 )................................................................... 2

2- R 5 slightly curved distally ( Figs 6, 7 ); female cerci with scattered setae ( Fig. 35 ); gonostylar ventral microtrichia restricted to basal half of gonostylus; basal part of aedeagus not exceeding beyond base line of gonocoxite anteriorly ( Figs 37, 38 ); pupal antennal bases with serrate protuberance ( Fig. 39 ); anterior lobes of larval spatula slightly wider than shaft ( Fig. 41 ); larval terminal segment with tiny verrucae dorsally ( Fig. 43 ).............. A. aeroradicis Elsayed, Yukawa & Tokuda , n. sp.

- R5 strongly curved distally ( Figs 8, 9 ); female cerci with setae on distal half ( Fig. 54 ); gonostylar ventral microtrichia restricted to basal third of gonostylus; basal part of aedeagus exceeding beyond base line of gonocoxite anteriorly ( Figs 56, 57 ); pupal antennal bases with pointed triangular protuberance ( Fig. 58 ); anterior lobes of larval spatula considerably wider than shaft ( Fig. 60 ); larval terminal segment with wide verrucae dorsally ( Fig. 62 )... A. stellariae Elsayed, Yukawa & Tokuda , n. sp.

Figures

FIGURES 10–16. Ametrodiplosis adetos n. sp. 10. Head. 11. Ventral view of mouthparts. 12. Female antennal flagellomeres. 13. Male antennal flagellomeres. 14. Ventral view of female flagellomere V. 15. Ventral view of male flagellomere V. 16. Tarsomere V and acromere. Scale bars = 50 µm.

FIGURES 22–23. Pupa of Ametrodiplosis adetos n. sp. 22. Ventral view of head. 23. Prothoracic spiracle. Scale bars = 50 µm.

FIGURES 24–26. Larva (third instar) of Ametrodiplosis adetos n. sp. 24. Spatula. 25. Ventral view of terminal abdominal segments. 26. Dorsal view of terminal abdominal segments. Scale bars = 50 µm.

FIGURES 27–33. Ametrodiplosis aeroradicis n. sp. 27. Head (left palpus is incomplete). 28. Ventral view of mouthparts. 29. Female antennal flagellomeres. 30. Male antennal flagellomeres. 31. Ventral view of female flagellomere V. 32. Dorsal view of male flagellomere V. 33. Tarsomere V and acromere. Scale bars = 50 µm.

FIGURES 46–52. Ametrodiplosis stellariae n. sp. 46. Head (left paplus is incomplete). 47. Ventral view of mouthparts. 48. Female antennal flagellomeres. 49. Male antennal flagellomeres. 50. Dorsal view of female flagellomere V. 51. Ventral view of male flagellomere V. 52. Tarsomere V and acromere. Scale bars = 50 µm.

FIGURES 41–45. Larva of Ametrodiplosis aeroradicis n. sp. 41. Spatula in third instar. 42. Ventral view of terminal abdominal segments of third instar. 43. Dorsal view of terminal abdominal segments of third instar. 44. Ventral view of terminal abdominal segments of second instar. 45. Dorsal view of terminal abdominal segments of second instar. Scale bars = 50 µm.

FIGURES 58–62. Pupa and larva (third instar) of Ametrodiplosis stellariae n. sp. 58. Ventral view of pupal head. 59. Prothoracic spiracle in pupa. 60. Spatula. 61. Ventral view of larval terminal abdominal segments. 62. Dorsal view of larval terminal abdominal segments. Scale bars = 50 µm.

FIGURES 4–9. Female and male wings of Japanese Ametrodiplosis species. 4–5. Female and male wings of A. adetos n. sp., respectively. 6–7. Female and male wings of A. aeroradicis n. sp., respectively. 8–9. Female and male wings of A. stellariae n. sp., respectively. Scale bars = 50 µm.

FIGURES 34–38. Ametrodiplosis aeroradicis n. sp. 34. Female tergites VI–VII (left to right). 35. Segment VIII to Ovipositor. 36. Male tergites V–VII (left to right). 37. Ventral view of gonostylus. 38. Male terminalia. Scale bars = 50 µm.

FIGURES 39–40. Pupa of Ametrodiplosis aeroradicis n. sp. 39. Ventral view of head. 40. Prothoracic spiracle. Scale bars = 50 µm.

FIGURES 53–57. Ametrodiplosis stellariae n. sp. 53. Female tergites VI–VII (left to right). 54. Ovipositor. 55. Male tergites VI–VII (left to right). 56. Ventral view of gonostylus. 57. Male terminalia. Scale bars = 50 µm.