Key to the species of Diaziella

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera; Superfamily: Chalcidoidea; Family: Pteromalidae; Subfamily: Sycoecinae)

Published in van Noort, Peng & Rasplus 2006

Antennal pedicel longer than first funicle segment; first funicle segment with one transverse row of sensilla (may be irregular) or with only a single sensillum visible in dorsal view.

Antennal pedicel shorter than or equivalent to first funicle segment; first funicle segment with more than one row of sensilla, which may form definite or integrated rows, but clearly not one row.

Fore wing clear with few microtrichia, almost glabrous

All of body metallic greenish-black, ovipositor barely projecting beyond the end of the metasoma.

D. bizarrea

Two dark patches on the fore wing, one below the stigmal vein and adjacent to the marginal vein the other above the stigmal vein.

D. bicolor

Hypopygium not projecting beyond the end of the metasoma (fig a); mesosoma metallic greenish-black, except for yellow propodeum (fig b); dark patch large, extending across the entire width of the wings (fig c).

D. yangi

Head with the vertex raised towards the ocelli (fig a); clypeal margin with small cone-like central protuberance (fig a). Mandible bidentate tricuspidate and three times as long as wide (fig b). Antennal insertion clearly above ventral margin of the eye (fig c).

D. latipennis

Head with vertex truncate (fig a), clypeal margin more indented, with a central (but not cone like) protuberance. The sides of the protuberance smooth and leading up to a fairly sharp central point (fig a). Mandible bidentate bicuspidate, with a slight protuberance on the inner margin of the subapical tooth; four times as long as wide (fig b). Antennal insertion just above ventral margin of the eye (fig c).

D. laticeps

Fore wing almost four times as long as wide (figs a & b). Clypeal margin concave with two slight projections on either side of a shallow central concavity (fig c).

D. macroptera

Fore wing less than three and a half times as long as wide (fig a). Clypeal margin either slightly protruding with a central U-shaped concavity (fig b), or broadly concave with a slight central convexity (fig c).

Clypeal margin slightly protruding with a central U-shaped concavity (head more rounded in shape) (fig a). Mandible bidentate tricuspidate, length approximately two and a half times the width (fig b).

D. alleni

Clypeal margin broadly concave with a very slight central convexity (head more square in shape) (fig a). Mandible bidentate bicuspidate (the subapical tooth may have a small protuberance on the inner margin), length almost four times the width (fig b).

D. wiebesi

10A

Head yellow in colour; clypeal margin with three slight protuberances, one in the centre and one on either side of the central protuberance (the protuberances being broadly separated) (fig a).

D. pallidiceps

11A

Clypeal margin with a central concavity (fig a). Mandible tridentate and short, twice as long as wide (fig b).

12A

Central concavity on clypeal margin scalloped with sharp medial point. Head wider than long (1.09:1). Shortest distance between compound eyes slightly greater (1.1X) than eye length (fig a).

D. philippinensis

12B

Clypeal margin with a central U-shaped concavity that has stepped sides. Head clearly longer than broad (1.15:1). Shortest distance between compound eyes much less (0.68X) than eye length (fig a).

D. longiceps

13A

Mandible extremely long and narrow, the length more than nine times the width (fig a). Antennal insertion clearly closer to the vertex than to the clypeal margin. Clypeal margin with a broad truncate protuberance (width approximately one third the width of the head); cheeks diverging towards the ventral margin (fig b).

D. tumidigena

13B

Mandible length six to seven times longer than wide (fig a). Antennal insertion approximately mid way between the vertex and the clypeal margin. Clypeal margin with a smaller truncate protuberance (width approximately one seventh the width of the head); cheeks sub-parallel, slightly converging towards the ventral margin (fig b).

D. retakensis

References

Gardiner, A.J. & Compton, S.G. 1987. New species of the fig wasp genus Diaziella (Hymenoptera, Chalcidoidea, Sycoecinae). Tijdschrift voor Entomologie 130:129–140.

Grandi, G. 1928. Un nuovo genre quattro nuove specie di imenotteri sicofili di Sumatra. Bollettino del Laboratorio di Entomologia del R.Istituto Superiore Agrario di Bologna 1: 71-89.

van Noort, S., Peng, Y.Q. & Rasplus, J.Y. 2006. First record of the fig wasp genus Diaziella Grandi (Hymenoptera: Chalcidoidea: Pteromalidae: Sycoecinae) from the Asian mainland with description of two new species from China. Zootaxa.

Wiebes, J.T. 1974. The fig wasp genus Diaziella (Hymenoptera, Chalcidoidea, Torymidae, Sycoecini). Proceedings Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam (C) 77: 295-300.

Key to the species of Diaziella

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