Deuterixys

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Taxonavigation

Ordo: Hymenoptera
Familia: Braconidae

Name

Deuterixys Mason, 1981 – Wikispecies link – Pensoft Profile

• Deuterixys Mason 1981, 115: 123; Whitfeild 1985, 61(1): 60; Marsh et al. 1987, 13: 31; Whitfield and Wagner 1991, 25: 737; Austin and Dangerfield 1992, 6(1): 23.

Type species:

Microgaster carbonarius Wesmael, 1835. Designated by Mason 1981.

Diagonosis

Areolet of fore wing absent; propodeum polished and bearing a strong long medial carina; TI of metasoma with medio-basal longitudinal groove; TII and III broad, rectangular, and noticeably constricted or abruptly widened at the suture between them; ovipositor sheaths short, decurved and subexerted.

Key to the Old World species of the genus Deuterixys Mason, 1981

Key to the Old World species of the genus Deuterixys Mason, 1981 — J. Zeng , J. He , X. Chen

1		TII+III enlarged to form a coarsely rugose carapace that completely hides the more apical segments; posterior margin of this carapace finely crenulate laterally. [Mesoscutum shiny, closely, rather strongly punctate for the size of the insect; hind coxa and underside of metasoma bright yellow; propodeum polished and with a strong medial keel; length: 1.8 mm]    Deuterixys patro Nixon, 1965
–		TII+III not thus enlarged, notched at the position of second suture but its posterior margin is membranous and smooth, the more apical segments exposed    2
2		TII less transverse, at most 1.7–1.8 times wider behind than long medially; legs yellow, hind tibia and tarsus more or less infuscate    3
–		TII more transverse, twice wider behind than long medially; legs dark brown, blackish to black    4
3		Vein 2-CU1 of fore wing twice as long as vein 1-CU1; TIII rugose to rugulose; preapical segment of antenna short, hardly twice as long as wide    Deuterixys condarensis (Tobias, 1960)
–		Vein 2-CU1 of fore wing as long as vein 1-CU1; TIII smooth and shiny; preapical segment of antenna long, more than twice as long as wide    Deuterixys bifossalis Zeng & Chen, sp. n.
4		TIII densely rugulose or subrugulose, dull; TII with rugosity almost similar to that of TI; TI parallel- or indistinctly subparallel-sided; propodeum medially with more or less transverse rugulosities along medial longitudinal keel, otherwise propodeum smooth    5
–		TIII chagreened or almost smooth, shiny; TI converging apically; propodeum smooth, at most with a few and very short rugulae along hind carina and above lunule    6
5		TI subrectangular, 1.2–1.3 times as long as wide; TII almost as long as TIII; inner hind tibial spurs much longer than half length of hind basitarsus    Deuterixys carbonaria (Wesmael, 1837)
–		TI more than 1.5 times longer than wide; TII distinctly longer than TIII; inner hind tibial spurs shorter than half length of hind basitarsus    Deuterixys curticalcar Zeng & Chen, sp. n.
6		Vein 1-R1 of fore wing as long as or slightly shorter than pterostigma. [TI posteriorly weakly to moderately converging, its basal width at most 1/3 greater than its apical width. Pterostigma less wide, 2.7–2.9 (-3.0) times longer than wide. First tergite always entirely black. Tegula brownish black to brownish yellow. Middle and hind femora black(ish)]    Deuterixys rimulosa (Niezabitowski, 1910)
–		Vein 1-R1 slightly longer than pterostigma    7
7		TI wedge-shaped, 1.6–2 times longer than wide at base; TII shorter than TIII, somewhat less transverse, twice wider behind than long medially; pterostigma 2.3–2.4 times longer than wide    Deuterixys plugarui (Tobias, 1975)
–		T1 widest about 2/3 distance from its base, anterior third and posteriorly with weakly converging sides, about 1.5 times longer than wide; TII slightly longer than TIII, somewhat more transverse, 2.2 times wider behind than long medially; pterostigma about 3 times longer than wide    Deuterixys anica Austin & Dangerfield, 1992

Taxon Treatment

• Zeng, J; He, J; Chen, X; 2011: The genera Deuterixys Mason, 1981 and Wilkinsonellus Mason, 1981 (Hymenoptera, Braconidae, Microgastrinae) from China, with description of two new species ZooKeys, 120: 27-40. doi