Tiphia (Tiphia) flavobrunnea Han, Chen & Li, sp. nov.

(Figs 1–7)

Material examined. Holotype, ♀, China, Hainan prov., Baisha County, Bangxi Nature Reserve (Malaise trap), 19°13′48″N, 109°36′0″E, 45 m, 1.VI.–2.VII.2021, Hesheng Wang (CNU); paratypes, 2♀, China, Hainan prov., Baisha County, Bangxi Nature Reserve (Malaise trap), 19°13′48″N, 109°36′0″E, 45 m, 1.VI.–2.VII.2021, Hesheng Wang (CNU).

Diagnosis. This species can be recognized by the following combination of characters: mandible, apex of clypeus, antennal segments, tegula, tibiae, tarsi and posterior half of pygidium yellowish brown (Figs 1, 2, 4, 7); wings (Fig. 1) completely transparent; horizontal area of propodeal dorsal face (Fig. 5) almost impunctate, only with several sparse punctures, oblique area densely punctate and without submarginal carina; S1 (Fig. 6) with sparse minute punctures; inner face of hind basitarsus (Fig. 4) medially without longitudinal groove.

Description. Female (Fig. 1). Body length 8.1–8.9 mm, forewing length 4.3–4.8 mm.

Color. Body almost black, with short whitish setae; mandible, apex of clypeus, antennal segments, tegula, tibiae, tarsi and posterior half of pygidium yellowish brown (Figs 1, 2, 4, 7); coxae and lateral margin of S1 (Fig. 6) dark brown; trochanters, femora and pygidium medially brown; pterostigma and veins pale yellow; wings (Fig.1) completely transparent.

Head. Mandible (Fig. 2) without distinct medial transverse groove and preapical denticle, atmost with obsolete intermittent impressed line; clypeus (Fig. 2) basally with coarse punctures, apically impunctate, apex medially truncated; W: OW: L: IOD=10: 3.8: 5.8: 6.7; OOD: POD: Od=10: 6.8: 3.2; AOD: WAS: IAD: CL: CAW=10: 3.6: 2.6: 5.3: 5.5; lower frons (Fig. 2) medially with dense punctures, laterally sparser, and mixed with some minute ones, upper frons with sparse punctures; vertex (Fig. 3) with sparse punctures, interspaces smooth.

Mesosoma . Pronotal anterior carina obsolete, anterior half of pronotum with sparse punctures, posterior half impunctate; pronotum latero-ventrally with distinct groove in middle, area above groove smooth, area below groove with dense oblique striae; mesoscutum medially with dense punctures, laterally sparser, anterior medial groove separated from notaulus; mesopleuron with dense minute punctures mixed with several sparse punctures; anterior half of mesoscutellum (Fig. 1) with sparse punctures, posterior half with denser ones; metanotum (Fig. 5) medially impunctate, laterally with dense punctures; horizontal area of propodeal dorsal face (Fig. 5) almost impunctate, with several sparse punctures, oblique area densely punctate and without submarginal carina, posteriorly with short longitudinal striae connecting transverse carina; propodeal areola (Fig. 5) subrectangular, weakly convergent posteriorly, APWL=4.6: 3.2: 7.2, medial longitudinal carina reaching posterior 4/5 of areola; lateral surface of propodeum dorsally with dense long oblique wrinkles, ventrally smooth; posterior surface of propodeum with dense minute punctures and ventral 3/4 with medial longitudinal groove; tegula atmost slightly longer than middle width, posterior margin without transverse impressed line; second intercubital vein of forewing slightly arched; fore and mid tibiae with one spur apically, hind tibia with 2 spurs apically; inner face of hind basitarsus (Fig. 4) medially without longitudinal groove.

Metasoma. Anterior half of T1 (Fig. 1) almost impunctate, with several sparse shallow punctures; subposterior area of T1 close to apex and distinctly depressed, with one transverse row of shallow punctures; S1 (Fig. 6) with sparse minute punctures and posterolateral groove; T2 antero-laterally with costate transverse depression (Fig. 1), medially obsolete, anteriorly and medially with sparse shallow punctures, posteriorly with scattered punctures; T3–T5 (Fig. 1) with small dense punctures mixed with some bigger punctures; S2–S5 with denser punctures than T3–T5; anterior half of pygidium (Fig. 7) with sparse small punctures mixed with some big ones, and posterior half impunctate.

Male. Unknown.

Distribution. China (Hainan).

Etymology. The specific name flavobrunnea is derived from the two latin words: flavus- (= yellow) + brunneus (= brown), referring to the characters: mandible, apex of clypeus, antennal segments, tegula, tibiae, tarsi and posterior half of pygidium yellowish brown.