Phanerotoma truncata sp. nov.

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Fig. 36

Diagnosis

Seven subapical segments of female antenna moniliform (Fig. 36A, E); head comparatively emarginate posteriorly in dorsal view; face without median ridge (Fig. 36D); vein 3-SR of fore wing infuscate (Fig. 36F); posterior lamella of third metasomal tergite narrow medially (Fig. 36I); head behind stemmaticum convex; eyes moderately protruding in dorsal view (Fig. 36B).

Etymology

Named after the broadly truncate third tergite, from the Latin ‘ truncus ’ for ‘cut off’.

Type material

Holotype CHINA – Taiwan • ♀; Duonalindao; 3 Jun. 2011; Pu Tang leg.; ZJUH No. 201105501.

Paratype

CHINA – Taiwan • 1 ♀; Shouka; 30 May 2011; Pu Tang leg.; ZJUH No. 201105418 .

Description

Female

MEASUREMENTS. Length of body 3.4 mm, of fore wing 2.7 mm.

COLOURATION. Yellow; stemmaticum and side of scutellum dark brown; teeth of mandible brown; pterostigma, parastigma, and veins r and 3-SR of fore wing infuscate; apical half of hind tibia with yellowish brown patch laterally.

HEAD. Width 1.4× median length in anterior view (Fig. 36D) and part of head above eye in lateral view 0.3× height of eye (Fig. 36C); antenna with 23 segments, almost as long as fore wing, seven subapical antennal segments moniliform (Fig. 36E); area of stemmaticum mainly granulate; OOL: diameter of posterior ocellus: POL=20: 7:5; eye 1.7× temple in dorsal view (Fig. 36B); frons with longitudinal rugae medially, rugose laterally and with median ridge; vertex granulate-rugose and with satin sheen; temple largely striate and with satin sheen; face with oblique rugae and with short median ridge; clypeus smooth, shiny and 0.8× minimum width of face, intertentorial distance 1.9× minimum width between clypeus and eye, clypeus long erect setose and with 3 minute teeth medio-ventrally (Fig. 36D); eye large and in lateral view 1.7× as wide as temple (Fig. 36C), in anterior view its height 0.5 × minimum width of face; upper condyle of mandible close to lower level of eyes (Fig. 36D); malar space 0.8× as long as basal width of mandible; lower tooth of mandible 0.7× length of apical tooth, robust and large (Fig. 36K).

MESOSOMA (Fig. 36G). Length 1.8× its width in lateral view; side of pronotum mainly rugose, but dorsally nearly smooth; mesoscutum densely rugose and rather shiny, densely setose; notauli hardly indicated; scutellar sulcus wide (Fig. 36G); scutellum triangular, flat, distinctly punctate-rugose and rather shiny; metanotum with short median carina anteriorly and small tooth protruding posteriorly; propodeum coarsely reticulate-rugose, no lateral tubercles or transverse and median carinae.

WINGS. Fore wing 3.0× as long as its maximum width; length of 1-R1 1.5× as long as pterostigma; r 0.8× 3-SR; distance between 1-R1 and wing apex 0.3 × 1-R1; 2-SR nearly straight (Fig. 36F); SR1 slightly bent; 2-SR+M present; pterostigma large, parastigma medium-sized; 1-CU1 0.6× as long as vein 2-CU1, cu-a oblique and 0.6× as long as 1-CU1; r: 3-SR: SR1 =11: 15: 71; 2-SR: 3-SR: r-m=28: 15: 11; 2-M bent (Fig. 36F).

LEGS (Fig. 36J). Hind femur moderately slender and with satin sheen, 3.7× as long as wide and rather widened submedially; hind tibia swollen; middle tibia with medium-sized ivory blister; hind coxa smooth and shiny.

METASOMA (Fig. 36H–I). Carapace elliptical in dorsal view, 2.0× as long as wide and 1.1 × as long as mesosoma; first and second tergites coarsely and densely longitudinally rugose; second suture narrow; third tergite 1.3× as long as second tergite and laterally weakly curved, in lateral view slightly convex posteriorly, in dorsal view densely and semi-circularly rugose and truncate (Fig. 36H), lamella wide and medio-apically weakly emarginate; ovipositor sheath short and slender (Fig. 36I), with some long and erect setae; hypopygium apically acute, without triangular protuberance (Fig. 36I).

Male

Unknown.

Host

Unknown.

Distribution

China (Taiwan).