Austroterobia gatesi Mitroiu 2017, sp. nov.
Creators: name: Mitroiu, Mircea-Dan
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Austroterobia
Austroterobia gatesi

description: Austroterobia gatesi sp. nov.   
(Figs 11–20)  
 Diagnosis. Female (male unknown): head and mesosoma without metallic reflections (Figs 11, 12); inner margins of eyes very slightly sinuate (Fig. 13); gena depressed at mouth corner (Fig. 15); mandibular formula 3:2 (Fig. 13); antenna with funicular segments strongly pedicellate (Fig. 16); POL about 0.8× OOL; pronotum not or barely visible in dorsal view (Fig. 17); notauli visible throughout length of mesoscutum (Fig. 17); prepectus and dorsal side of propodeum bare (Fig 17, 18); axillae wide apart (Fig. 17); posterior margin of mesoscutellum not densely setose, without distinct spine (Fig. 17); anterior margin of propodeum not distinctly raised, not concealing dorsellum (Fig. 19); propodeal plicae present, converging posteriorly (Fig. 19); fore wing without speculum (Fig. 20); parastigma with hyaline break (Fig. 20).   
 Austroterobia gatesi superficially resembles A. achterbergi in colour, as well as in head and mesosomal structure; however it differs from the latter species in having complete notauli (Fig. 17), distinctly pedicellate funicular segments (Fig. 16), and a different wing structure, i.e. without a speculum and with a hyaline break on the parastigma (Fig. 20).   
 Material examined. Type material. Holotype ♀ (deposited in UCD) [entire; on triangular card]. COSTA RICA: ‘ Costa Rica: Puntarenas Los Patos Par. Nac. Corcovado, 8°33’N 83°30’W 200m, 1-9.III.00 MT/YPT, J S Noyes & J A Asofeifa’, ‘ Austroterobia S. L. Heydon 2002 ’.   
 Description. Female. Body length: 1.4 mm.   
 Colour. Head and mesosoma dark brown (Figs 11, 12). Gaster light brown (Figs 11, 12). Eyes and ocelli whitish-grey (Figs 13–15). Antenna light brown (Fig. 16). Mandibles pale yellow, teeth reddish-brown (Fig. 13). Legs entirely yellowish except for darker pretarsi (Fig. 11). Wings hyaline (Fig. 20). Tegula and venation light brown (Fig. 20). Body setation whitish-brown, wing setation brown (Figs 13, 17, 20).   
 Sculpture. Head coriaceous to alutaceous except for smooth clypeus (Figs 13–15); malar area with sculpture denser (Fig. 15); mesoscutum and mesoscutellum reticulate, axillae almost smooth (Fig. 17); median area of propodeum, except for median carina and plicae, almost smooth but with several superficial carinulae (Fig. 19); mesopleuron with shallow femoral depression, without any indication of a central pit (Fig. 18); prepectus, mesepimeron and metapleuron almost smooth (Fig. 18); upper mesepisternum alutaceous, lower mesepisternum finely reticulate (Fig. 18); gaster smooth.   
 Structure. Head. Toruli about equidistant from median ocellus and ventral margin of clypeus, their lower margins much higher than lower margins of eyes (Fig. 13). Scape reaching lower margin of median ocellus (Fig. 15). Gena conspicuously depressed at mouth corner (Fig. 15), posterior margin carinate. Malar sulcus absent (Fig. 15). Eyes broad oval, inner margins slightly sinuate in middle and almost parallel in lower part (Fig. 13). Funicular segments strongly pedicellate (Fig. 16). Head width 2.5× length (50:20) in dorsal view and 1.25× height (50:40) in frontal view. POL about 0.8× OOL (9:11). Eye height 1.25× length (19.5:15.5), about 1.3× malar space (19.5:14.5), and 1.3× scape length (19.5:15.0). Head width subequal to length of pedicel plus flagellum (50:51). F1 width equal to length (5:5); F5 width 1.1× length (5.0:4.5); clava length 2.7× width (13.5:5.0).   
Mesosoma. Dorsally setose, except for metanotum and median area of propodeum (Fig. 17); prepectus and metapleuron bare (Fig. 18); mesopleuron bare except for some setae along anteroventral margin (Fig. 18). Pronotum not visible in dorsal view (Fig. 17). Notauli complete (Fig. 17). Axillae wide apart, medially connected by wide groove separating mesoscutum from mesoscutellum (Fig. 17). Posterior margin of mesoscutellum evenly curved (Fig. 17). Anterior margin of propodeum not distinctly raised, not concealing dorsellum (Fig. 19). Propodeum with distinct median carina and posteriorly converging, almost complete plicae (Fig. 19). Fore wing (Fig. 20) completely setose, without speculum; parastigma with hyaline break; marginal vein hardly thickened.  
Mesosoma length subequal to width (55:52), width about 1.4× height (41:30). Mesoscutum width 3.15× length (41:13). Mesoscutellum length 0.95× width (20:21). Propodeum length 0.45× mesoscutellum length (9:20). Fore wing length about 1.9× width (96:51); MV about 1.2× SV (18.0:15.5); PV about 1.7× MV (31:18).  
Gaster. Ovate, longer than head plus mesosoma (Figs 11, 12); length about 1.7× width (70:42).  
 Male. Unknown.   
 Distribution. Costa Rica.   
 Biology. Unknown.   
 Remarks. This is the first record of the subfamily Austroterobiinae in the Neotropical region; it is highly probable that other species will be discovered when more material is examined.   
 Etymology. Named in honour of Dr. Michael Gates (USNM), for his contribution to the systematics of Chalcidoidea.
description: Published as part of Mitroiu, Mircea-Dan, 2017, Revision of world Austroterobiinae and Parasaphodinae (Hymenoptera: Chalcidoidea: Pteromalidae), parasitoids of giant scales (Hemiptera: Coccoidea: Monophlebidae), pp. 1-63 in Zootaxa 4301 (1) on pages 11-14, DOI: 10.11646/zootaxa.4301.1.1, http://zenodo.org/record/839721