Streblocera (Streblocera) trullifera Li, Chen & van Achterberg, 2021

Li, Jun, Achterberg, Cornelis van, Zheng, Min-Lin & Chen, Jia-Hua, 2021, Revision of Streblocera Westwood (Hymenoptera, Braconidae, Euphorinae) from China, with the description of seven new species, ZooKeys 1044, pp. 729-782 : 729

publication ID	https://dx.doi.org/10.3897/zookeys.1044.59979
publication LSID	lsid:zoobank.org:pub:96B47980-D6AB-4DC8-AE02-6913A392DE30
persistent identifier	https://treatment.plazi.org/id/8C607D72-DA27-484E-BBC0-2C0B0157E654
taxon LSID	lsid:zoobank.org:act:8C607D72-DA27-484E-BBC0-2C0B0157E654
treatment provided by	ZooKeys by Pensoft
scientific name	Streblocera (Streblocera) trullifera Li, Chen & van Achterberg
status	sp. nov.

Treatment

Streblocera (Streblocera) trullifera Li, Chen & van Achterberg sp. nov. Figures 24A-C View Figure 24 , 25D, E View Figure 25 , 26F-J View Figure 26

Type material.

Holotype, ♀, NE China, Liaoning Province, Fuxin city, Sanba park, 27.vii.2012, Yingying Zhao, average altitude 200m.

Description.

Holotype, ♀, length of antenna 1.5 mm, of fore wing longer than 2.2 mm, and of body 2.5 mm.

Head. Antenna with 17 antennomeres and 0.6 × as long as body (Fig. 24A View Figure 24 ); scapus stout, weakly expanded, 3.0 × longer than its maximum width, with spoon-shaped horn basally, sparsely setose (Figs 24C View Figure 24 , 25E View Figure 25 ); antenna geniculated at first flagellomere and first flagellomere modified: first flagellomere flat and rectangular with small hook, second flagellomere inserted on first flagellomere near its middle (Fig. 24C View Figure 24 ); first flagellomere 2.0 × longer than second flagellomere, first, second and penultimate flagellomere 1.6, 2.0 and 2.5 × longer than wide, respectively (Fig. 24C View Figure 24 ); eye 1.6 × longer than temple in dorsal view (Fig. 19 D View Figure 19 ); temples roundly narrowed behind eyes (Fig. 25D View Figure 25 ); ocelli small, OOL:OD:POL = 47:9:21 (Fig. 25D View Figure 25 ); frons and vertex smooth (Fig. 25D View Figure 25 ); occipital carina nearly complete, narrowly interrupted medio-dorsally (Fig. 25D View Figure 25 ); face 2.2 × wider than high, smooth to punctate (Fig. 25E View Figure 25 ); clypeus smooth, narrow than face, slightly convex, 3.1 × wider than high (Fig. 25E View Figure 25 ); dorsal margin of clypeus above level of ventral margin of eye anterior (Fig. 25E View Figure 25 ); tentorial pits large (Fig. 25E View Figure 25 ); malar suture narrow, length of malar space 1.2 × basal width of mandible (Fig. 25E View Figure 25 ); mandibles stout (Fig. 25E View Figure 25 ).

Mesosoma. Length of mesosoma 2.1 × its height (Fig. 26G View Figure 26 ); side of pronotum crenulated anteriorly, largely striate (Fig. 26G View Figure 26 ); propleuron smooth (Fig. 26G View Figure 26 ); mesopleuron smooth (Fig. 26G View Figure 26 ); prepectal carina complete present (Fig. 26G View Figure 26 ); episternal scrobe short (Fig. 26G View Figure 26 ); precoxal sulcus long, narrow and crenulate (Fig. 26G View Figure 26 ); mesonotum sparsely setose, convex, smooth and finely shiny (Fig. 26F View Figure 26 ); notauli narrow and crenulated; mesoscutum sparsely setose, finely convex (Fig. 26F View Figure 26 ); scutellar sulcus wide and smooth with one distinct crenula (Fig. 26F View Figure 26 ); scutellum convex, smooth (Fig. 26F View Figure 26 ); metapleuron largely reticulate (Fig. 26G View Figure 26 ); propodeum with short basal carina and median area dorsally, laterally reticulate and partly smooth (Fig. 26H View Figure 26 ).

Wings. Fore wing (Fig. 26J View Figure 26 ): vein 1-SR+M absent; vein 1-R1 0.6 × as long as pterostigma; vein SR1+3-SR largely unsclerotized and curved; r:2-SR = 9:51; vein r issued behind middle of pterostigma; vein m-cu cross vein 2-SR; vein cu-a longer than vein 1-CU1, postfurcal and finely stout.

Legs. Fore leg: tibia 4.2 × longer than coxa, 1.3 × longer than femur; middle leg: tibia 3.4 × longer than coxa, 1.4 × longer than femur; hind leg: tibia 4.0 × longer than coxa, 1.4 × longer than femur; hind coxa smooth, 1.4 × longer than wide; hind femur, tibia and basitarsus 5.6, 10.6 and 5.2 × longer than wide, respectively; hind basitarsus 0.3 × as long as tibia, and 0.6 × as long as combined second to fifth tarsal segments; hind fourth tarsal segment 0.7 × as long as fifth tarsal segment.

Metasoma. First tergite 1.8 × longer than its apical width, apical width 2.3 × its minimum width, with large dorsope basally (Fig. 26I View Figure 26 ); first tergite basally rugulose, laterally striate to rugulose (Fig. 26I View Figure 26 ); following tergites smooth and shiny; ovipositor sheath and ovipositor short (Fig. 24B View Figure 24 ).

Colour. Yellowish brown to dark brown; palpi pale yellow; basal part of antenna, head and legs yellowish brown; antenna and mesopleuron largely brown; wing membrane hyaline, pterostigma and veins brown.

Remarks.

This new species can be distinguished from related species by its combination of 17 antennomeres, scapus with a spoon-shaped horn basally and vein SR1+3-SR of fore wing largely unsclerotized.

Biology.

Unknown.

Distribution.

Palaearctic: China (Liaoning).

Etymology.

Named after its spoon-shaped horn of the scapus: “trulla” is "little spoon" in Latin and “fero” is Latin for “carry”.