Austroterobia noyesi, 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 : 20-23

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.6038604

persistent identifier

https://treatment.plazi.org/id/4D3D879A-FFB5-FFB9-FF16-C3E8FBD3F983

treatment provided by

Plazi

scientific name

Austroterobia noyesi
status

sp. nov.

Austroterobia noyesi sp. nov.

( Figs 40–50 View FIGURES 40 – 42 View FIGURES 43 – 50 )

Diagnosis. Both sexes: head and mesosoma brown, without metallic reflections ( Figs 40–42 View FIGURES 40 – 42 ); gena not depressed at mouth corner ( Fig. 46 View FIGURES 43 – 50 ); POL 0.5–0.7× OOL; mandibular formula 3:3; pronotum not visible in dorsal view ( Fig. 48 View FIGURES 43 – 50 ); notauli visible throughout length of mesoscutum ( Fig. 48 View FIGURES 43 – 50 ); prepectus and dorsal side of propodeum bare ( Fig. 49 View FIGURES 43 – 50 ); axillae wide apart ( Fig. 48 View FIGURES 43 – 50 ); posterior margin of mesoscutellum not densely setose, without distinct spine, although acutely pointed ( Fig. 48 View FIGURES 43 – 50 ); anterior margin of propodeum not distinctly raised, not concealing dorsellum ( Fig. 50 View FIGURES 43 – 50 ); propodeal plicae present, diverging posteriorly ( Fig. 50 View FIGURES 43 – 50 ).

This is the second described species of Austroterobia having the mandibular formula 3:3, after A. iceryae . Both occur in Africa, but apart from the mandible structure, the two species are very distinct.

Material examined. Type material. Holotype ♀ (deposited in MRAC) [entire; on triangular card]. D. R. CONGO: ‘Mus. Congo, Rutshuru , II-1937, J. Ghesquière, 4102’, ‘ RMCA UCRCENT 00417018 ’.

Allotype ♂. D. R. CONGO: ‘Mus. Congo, Eala, -1938, J. Ghesquière, 7132’ ( MRAC).

Additional paratypes. D. R. CONGO: 3♀, same information as holotype ( MRAC) ; 1♀ and 1♂ ‘Mus. Congo, Eala, -1938, J. Ghesquière, 7132’, ‘ Epicopterus sp. III à trier, ♀ ♂ 06.II?, ♀ ♂ 06.III?’ ( MRAC) ; 1♀ ‘Dem. Rep. Congo, Bandundu: Wamba, Kikongo Mission , 4°16’S 17°11’E, 24.IV.2006 ’, ‘ S. L. Heydon, Malaise trap in riparian forest’, ‘ Austroterobia S. L. Heydon 2016 ’ ( UCD) GoogleMaps . IVORY COAST: 1♂ ‘Ivory Coast: Lamto Ecol. Res. Stn. , 6°13’N 5°02’W, 10-30.xi.1988, J. S. Noyes’ ( BMNH) GoogleMaps . NIGERIA: 1♀ ‘ Ibadan, Nigeria , 15.II.1963, D. C. Eidt’, ‘ ♀ Austroterobia iceryae Bčk. sp. n., Det. Z. Bouček 1989’ ( CNC) . TOGO: 1♂ ‘ Togo: 10 km NW Kpaliné , 17.xii.1988, J. S. Noyes’ ( MICO) .

Description. Female. Body length: 1.1–1.7 mm.

Colour. Head and mesosoma from light to dark reddish-brown, gaster lighter ( Figs 40, 41 View FIGURES 40 – 42 ). Eyes and ocelli whitish ( Fig. 44 View FIGURES 43 – 50 ). Antenna ( Fig. 46 View FIGURES 43 – 50 ) with scape and pedicel yellowish-brown; flagellum dark brown. Mandibles yellowish. Legs ( Fig. 40 View FIGURES 40 – 42 ) with coxae, trochanters and femora from paler to darker brown, tibiae and tarsi yellowish. Fore wings with disc slightly infumate ( Fig. 47 View FIGURES 43 – 50 ); hind wings hyaline ( Fig. 41 View FIGURES 40 – 42 ). Tegula and venation reddish-brown ( Fig. 47 View FIGURES 43 – 50 ). Body setation pale brown, wing setation brown ( Figs 43, 47, 48 View FIGURES 43 – 50 ).

Sculpture. Head coriaceous to alutaceous except for smooth clypeus and genae ( Figs 43, 44, 46 View FIGURES 43 – 50 ); mesoscutum very shallowly reticulate, axillae and mesoscutellum rugose ( Fig. 48 View FIGURES 43 – 50 ); median area of propodeum, except plicae and median carina, almost smooth ( Fig. 50 View FIGURES 43 – 50 ); mesopleuron mostly smooth, with shallow coriaceous to finely reticulate femoral depression, without central pit ( Fig. 49 View FIGURES 43 – 50 ); prepectus and metapleuron smooth ( Fig. 49 View FIGURES 43 – 50 ); gaster smooth.

Structure. Head. Toruli very high, much closer to median ocellus than to ventral margin of clypeus ( Fig. 43 View FIGURES 43 – 50 ). Scape surpassing level of vertex ( Fig. 46 View FIGURES 43 – 50 ); flagellum apparently with only two anelli, the first one extremely short ( Fig. 46 View FIGURES 43 – 50 ). Gena not depressed at mouth corner ( Fig. 46 View FIGURES 43 – 50 ), posterior margin finely carinate. Malar sulcus present ( Fig. 46 View FIGURES 43 – 50 ). Eyes virtually round ( Fig. 46 View FIGURES 43 – 50 ), inner margins not sinuate in middle and almost parallel in lower part ( Fig. 43 View FIGURES 43 – 50 ). Funicular segments not pedicellate ( Fig. 46 View FIGURES 43 – 50 ). Head width 2.7–3.0× length (66:22) in dorsal view and 1.4× height (66:47) in frontal view. POL about 0.7× OOL (10:15). Eye height about equal to length (20:20), 0.9–1.1× malar space (20:22), and subequal to scape length (20:19). Head width about 1.2× length of pedicel plus flagellum (66:56). F1 width about 1.2× length (7:6); F5 width 1.2× length (6:5); clava length about 2.6× width (17.0:6.5).

Mesosoma. Dorsally setose, except for metanotum and median area of propodeum ( Fig. 48 View FIGURES 43 – 50 ); prepectus and metapleuron bare ( Fig. 49 View FIGURES 43 – 50 ); mesopleuron bare except for a few setae on lower mesepisternum ( Fig. 49 View FIGURES 43 – 50 ). Pronotum not visible in dorsal view ( Fig. 48 View FIGURES 43 – 50 ). Notauli complete ( Fig. 48 View FIGURES 43 – 50 ). Axillae wide apart, medially connected by wide groove separating mesoscutum from mesoscutellum ( Fig. 48 View FIGURES 43 – 50 ). Posterior margin of mesoscutellum acute medially, but without distinct spine ( Fig. 48 View FIGURES 43 – 50 ). Anterior margin of propodeum not distinctly raised, not concealing dorsellum ( Fig. 50 View FIGURES 43 – 50 ). Propodeum with distinct median carina, and posteriorly diverging and almost complete plicae ( Fig. 50 View FIGURES 43 – 50 ); with wide depression margined by incomplete sinuous carina laterad to each plica, towards spiracle ( Fig. 50 View FIGURES 43 – 50 ). Fore wing ( Fig. 47 View FIGURES 43 – 50 ) completely setose, without speculum; parastigma without hyaline break; marginal vein slightly thickened. Mesosoma length about 1.2× width (65:56), width about 1.4× height (65:45). Mesoscutum width about 2.2× length (56:25). Mesoscutellum length about 0.9× width (27:31). Propodeum length about 0.4× mesoscutellum length (12:27). Fore wing length about 2.1× width (150:70); MV 1.0–1.2× SV (25:25); PV 1.8× MV (45:25).

Gaster. Broadly ovate, from about equal to slightly shorter than head plus mesosoma ( Figs 40, 41 View FIGURES 40 – 42 ); length 1.5–1.8× width (83:55).

Male. Differs from the female mainly as follows. Body length: 1.2–1.7 mm. Lower face more swollen, almost entirely smooth ( Fig. 45 View FIGURES 43 – 50 ). Genae larger, hence head appearing less triangular in frontal view ( Fig. 45 View FIGURES 43 – 50 ). Eyes smaller, hence malar space as well as temples in dorsal view of the head longer. Scape shorter, not surpassing level of vertex, with ventral protuberance towards apex ( Figs 42 View FIGURES 40 – 42 , 45 View FIGURES 43 – 50 ); anelli (especially the second) and proximal funicular segments (F1–F2) longer, much longer than broad and thinner than rest of segments ( Fig. 45 View FIGURES 43 – 50 ). Head width about 2.5× length in dorsal view and width about 1.3× height in frontal view. POL 0.5–0.7× OOL. Eye height about 1.1× length and about 0.8× malar space. F1 length 1.8–2.0× width; F5 quadrate; clava length 2.4–3.1× width (in allotype clava collapsed). Mesosoma length about 1.1× width, width about 1.3× height. Mesoscutum width about 2.3× length. Mesoscutellum length about 0.8× width. Fore wing length about twice width; MV about 1.2× SV; PV about 1.6× MV. Gaster from about as long as head plus mesosoma to shorter than mesosoma, usually strongly collapsed dorsally or laterally, length about 2.2× width ( Fig. 42 View FIGURES 40 – 42 ).

Distribution. Democratic Republic of Congo, Ivory Coast, Nigeria, Togo.

Biology. Unknown.

Remarks. The female specimen from CNC was identified by Z. Bouček in 1989 as A. iceryae (see material examined). However, this specimen clearly differs from the type material of A. iceryae (formally described 15 years later). The new species seems the most sexually dimorphic species of Austroterobiinae known so far (see male characters above).

Etymology. Named in honour of Dr. John Noyes ( BMNH), founder of the Universal Chalcidoidea Database , for his contribution to the systematics of Chalcidoidea .

MRAC

Mus�e Royal de l�Afrique Centrale

RMCA

Royal Museum for Central Africa

UCD

University of California, Davis

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

TOGO

Universit� du Lom�