Asiodixa L. PAPP, 2006
|
publication ID |
https://doi.org/10.5281/zenodo.12586111 |
|
persistent identifier |
https://treatment.plazi.org/id/03A487CE-FF83-F50E-E8C0-FA4ED18BF8B2 |
|
treatment provided by |
Felipe (2024-06-28 17:24:42, last updated by Admin 2024-06-30 01:55:50) |
|
scientific name |
Asiodixa L. PAPP |
| status |
gen. nov. |
Asiodixa L. PAPP View in CoL , gen. n.
( Figs 2–12 View Figs 2–5 View Figs 6–9 View Figs 10–12 , 124–125 View Figs 124–125 )
Type species: Asiodixa maculosa L. PAPP , sp. n.; other included species: A. pura L. PAPP , sp. n. Gender: feminine.
Very small dixids, wing length 2.0– 2.5 mm. Frons convex without any setae. Scape very short ventrally ( Fig. 4 View Figs 2–5 ). Pedicel bulbous.
Flagellum very long, male first flagellomere with a ventromedial dilatation at about middle ( Figs 2, View Figs 2–5
4–5), other basal flagellomeres long cylindrical. Female first flagellomere long cylindrical. Apical flagellomeres ( Fig. 3 View Figs 2–5 ) medium long, apex with medium long setae only. Palpus with 5 palpomeres, 3–5 rather long. Proboscis not particularly long.
Wing with long S-curved Rs section ( Figs 124–125 View Figs 124–125 ).
Male genitalia basically more similar to those of Dixella , than to those of Dixa : gonocoxite with an apical medially directed process. Dorsal wall of gonocoxites with a long pair of cranially directed processes ( Figs 9–10 View Figs 6–9 View Figs 10–12 ). Phallus ( Figs 6 View Figs 6–9 , 12 View Figs 10–12 ) long or very long, thread-like.
The presence of a long pair of dorsal cranially directed processes of gonocoxites (dorsally to phallus) is in direct connection with the existence of long filiform phallus. The Thaii Dixella spp. have those and also some of the Palaearctic Dixella spp. , e.g. D. filiformis (EDWARDS) , too. No such long phallus and dorsal processes found in any Dixa spp. By this feature and some other characteristics I believe that the new genus is closer to Dixella than to Dixa .
Scales: 0.1 mm for Figs 2–3 View Figs 2–5 , 0.2 mm for Fig. 4 View Figs 2–5
Figs 2–5. Asiodixa maculosa sp. n., paratype male, head and antenna: 2 = basal flagellomeres, 3 = apical flagellomeres, 4 = head with basal parts of antennae, anterior view (pedicel and first flagellomere turned upwards), 5 = head and right antenna, sublateral view (del. A. SZAPPANOS).
Figs 6–9. Asiodixa maculosa sp. n., paratype male, genitalia. 6 = phallus, dorsal view, apex lateroclinate, 7 = gonostylus and apex of gonocoxite, dorsal view, 8 = genital complex, ventral view
Figs 10–12. Asiodixa pura sp. n., paratype male. 10 = genitalia, dorsal view, 11 = genitalia, ventral view, 12 = phallus, lateral view. Scale: 0.1 mm for all
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.