Austroterobia achterbergi, Mitroiu, 2017

Mitroiu, Mircea-Dan, 2017, Revision of world Austroterobiinae and Parasaphodinae (Hymenoptera: Chalcidoidea: Pteromalidae), parasitoids of giant scales (Hemiptera: Coccoidea: Monophlebidae), Zootaxa 4301 (1), pp. 1-63 : 8-11

publication ID

https://doi.org/10.11646/zootaxa.4301.1.1

publication LSID

lsid:zoobank.org:pub:67A78566-A4FD-4E37-96E9-DCC4CCF321E5

DOI

https://doi.org/10.5281/zenodo.6038592

persistent identifier

https://treatment.plazi.org/id/4D3D879A-FFA1-FFA5-FF16-C7C5F89CFCBB

treatment provided by

Plazi

scientific name

Austroterobia achterbergi
status

sp. nov.

Austroterobia achterbergi   sp. nov.

( Figs 1–10 View FIGURES 1, 2 View FIGURES 3 – 10 )

Diagnosis. Female (male unknown): head at most with slight dark metallic reflections ( Fig. 1 View FIGURES 1, 2 ); legs yellowishbrown ( Fig. 1 View FIGURES 1, 2 ); inner margins of eyes very slightly sinuate ( Fig. 3 View FIGURES 3 – 10 ); gena conspicuously depressed at mouth corner ( Fig. 5 View FIGURES 3 – 10 ); POL about 0.7× OOL; toruli closer to median ocellus than to ventral margin of clypeus ( Fig. 5 View FIGURES 3 – 10 ); scape reaching slightly above lower margin of median ocellus ( Fig. 3 View FIGURES 3 – 10 ); basal two teeth of right mandible large and wide apart (cf. Fig. 13 View FIGURES 13 – 20 ); notauli visible only in anterior third of mesoscutum ( Fig. 7 View FIGURES 3 – 10 ); marginal vein more than 8× as long as broad ( Fig. 10 View FIGURES 3 – 10 ).

Due to the incomplete notauli, A. achterbergi   most closely resembles A. maldica   and A. heydoni   , those being the only known species of the genus that display this feature. Of these, it is more similar to A. maldica   , from which it differs mainly in having the POL shorter than the OOL ( Fig. 4 View FIGURES 3 – 10 ), a longer scape, and an indistinct malar sulcus ( Fig. 5 View FIGURES 3 – 10 ). Austroterobia achterbergi   is also superficially similar to A gatesi   , but this latter species has complete notauli ( Fig. 17 View FIGURES 13 – 20 ).

Material examined. Type material. Holotype ♀ (deposited in RMNH) [entire; on triangular card]. INDONESIA: ‘ Indonesia : Sumbawa, nr Pancasila, Gn. Tambora, Mal. trap 1, c 1250 m, 22.ix.-2.x.1993, C. v. Achterberg, RMNH ‘93’, ‘BE. 68011’.  

Paratypes. MALAYSIA: 1♀ ‘ Borneo: Sarawak, sw. Gunung Buda, 64 km s. Limbang , 4°13’N 114°56’E, 8- 15.XI.1996 MT, S L Heydon & S Fung’ ( UCD) GoogleMaps   ; 1♀, same information, ’ 22-28.XI.1996 ’ (UCD). THAILAND: 1♀ ‘ Thailand: Khao Yai Nat. Park , 10-17.II.1989, T. W. Thormn’, ‘ Austroterobia   det. R. A. Burks 2004’ ( CNC)   ; VIETNAM: 1♀ ‘S   . Vietnam: Dak Lak, Chu Yang Sin N.P., nr dam, c. 500 m, 3-9.vi.2007, Mal. traps, C. v. Achterberg & R. de Vries , RMNH ‘07’, ‘BE. 67987’, ‘ DNA voucher D # 4895, UCR, J.M. Heraty’, ‘ RMNH, UCRENT 00491220 ’ ( RMNH)   .

Description. Female. Body length: 1.5–1.8 mm.

Colour. Head dark brown to blackish, in the latter case with dark green metallic reflections ( Fig. 1 View FIGURES 1, 2 ). Dorsal side of mesosoma brown to dark brown except for lighter propodeum ( Fig. 7 View FIGURES 3 – 10 ); lateral side of mesosoma brown ( Fig. 8 View FIGURES 3 – 10 ). Gaster brown, lighter ventrally and basally on dorsal side ( Fig. 2 View FIGURES 1, 2 ). Eyes and ocelli whitish-grey ( Figs 3, 4 View FIGURES 3 – 10 ). Antenna ( Figs 5, 6 View FIGURES 3 – 10 ) with scape, pedicel, anelli and ventral side of funicular segments and clava yellowish-brown; dorsal side of funicular segments and clava brown. Mandibles pale yellow, teeth reddish-brown ( Figs 3, 5 View FIGURES 3 – 10 ). Legs entirely yellowish-brown except for darker pretarsi ( Fig. 1 View FIGURES 1, 2 ). Wings hyaline; tegula and venation light brown ( Fig. 10 View FIGURES 3 – 10 ). Body setation whitish, wing setation brown ( Figs 3, 7, 10 View FIGURES 3 – 10 ).

Sculpture. Head finely reticulate except for smooth clypeus ( Figs 3, 4 View FIGURES 3 – 10 ); malar region with sculpture denser ( Fig. 5 View FIGURES 3 – 10 ); mesoscutum and mesoscutellum reticulate, axillae almost smooth anterolaterally ( Fig. 7 View FIGURES 3 – 10 ); median area of propodeum, except median carina and plicae, extremely finely alutaceous, and with several superficial carinulae ( Fig. 9 View FIGURES 3 – 10 ); mesopleuron with shallow femoral depression and almost indistinct central pit ( Fig. 8 View FIGURES 3 – 10 ); prepectus, mesepimeron and metapleuron almost smooth ( Fig. 8 View FIGURES 3 – 10 ); upper mesepisternum alutaceous, lower mesepisternum very finely and densely reticulate ( Fig. 8 View FIGURES 3 – 10 ); gaster smooth.

Structure. Head. Toruli closer to median ocellus than to ventral margin of clypeus, their lower margins much higher than lower margins of eyes ( Fig. 5 View FIGURES 3 – 10 ). Scape surpassing lower margin of median ocellus ( Fig. 3 View FIGURES 3 – 10 ). Gena conspicuously depressed at mouth corner ( Fig. 5 View FIGURES 3 – 10 ), posterior margin carinate. Malar sulcus absent ( Fig. 5 View FIGURES 3 – 10 ). Eyes broad oval, inner margins slightly sinuate in middle and almost parallel in lower part ( Fig. 3 View FIGURES 3 – 10 ). Funicular segments slightly to distinctly pedicellate. Head width 2.3–2.5× length (60:24) in dorsal view and about 1.2× height (60:50) in frontal view. POL about 0.7× OOL (10:14). Eye height about 1.2× length (23:19), 1.35× malar space (23:17), and 1.10–1.35× scape length (23:17). Head width 0.9–1.1× length of pedicel plus flagellum (60:53). F1 width 0.9–1.2× length (7:6); F5 width 1.1–1.4× length (7:6); clava length 2.4–2.8× width (17:7).

Mesosoma. Dorsally setose, except metanotum and median area of propodeum ( Fig. 7 View FIGURES 3 – 10 ); prepectus and metapleuron bare ( Fig. 8 View FIGURES 3 – 10 ); mesopleuron bare except for some setae on lower mesepisternum ( Fig. 8 View FIGURES 3 – 10 ). Pronotum barely visible in dorsal view ( Fig. 7 View FIGURES 3 – 10 ). Notauli visible only in anterior third of mesoscutum ( Fig. 7 View FIGURES 3 – 10 ). Axillae wide apart, medially connected by wide groove separating mesoscutum from mesoscutellum ( Fig. 7 View FIGURES 3 – 10 ). Posterior margin of mesoscutellum evenly curved ( Fig. 7 View FIGURES 3 – 10 ). Anterior margin of propodeum not distinctly raised, not concealing dorsellum ( Fig. 9 View FIGURES 3 – 10 ). Propodeum with distinct median carina and posteriorly converging, almost complete plicae ( Fig. 9 View FIGURES 3 – 10 ). Fore wing ( Fig. 10 View FIGURES 3 – 10 ) with very small speculum, otherwise completely setose; parastigma without hyaline break; marginal vein hardly thickened. Mesosoma length subequal to width (55:52), width about 1.3× height (52:40). Mesoscutum width 2.4–2.6× length (52:20). Mesoscutellum length about 0.9× width (24:26). Propodeum length about 0.5× mesoscutellum length (13:24). Fore wing length 1.85–2.10× width (130:70); MV 1.2–1.4× SV (24:19); PV 1.4–1.6× MV (35:24).

Gaster. Wider in distal half, from about equal to slightly longer than head plus mesosoma ( Figs 1, 2 View FIGURES 1, 2 ); length 1.6–2.0× width (80:40).

Male. Unknown.

Distribution. Indonesia, Malaysia, Thailand, Vietnam.

Biology. Unknown.

Etymology. Named in honour of Dr. Ing. Cees van Achterberg ( RMNH), world specialist of Braconidae   and collector of the holotype.

RMNH

National Museum of Natural History, Naturalis

UCD

University of California, Davis

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

DNA

Department of Natural Resources, Environment, The Arts and Sport

UCR

University of California