Tiphia (Tiphia) choui Chen & Yang, 1991

(Figs 28–33)

Tiphia (Tiphia) choui Chen & Yang, 1991: 116–117 .

Material examined. 1♀, China, Inner Mongolia, Hohhot City, Horinger County, 40°20′38″N, 111°46′19″E, 1199 m, 4.VIII.2001, Zhiyi Wu (CNU) ; 3♀, 1♁, China, Shaanxi prov., Weinan City, Huachuan District, 34°26′24″N, 109°57′0″E, 1252 m, 4.VIII.2019, Xue Zhang (CNU) ; 1♀, China, Shaanxi prov., Weinan City, Huayang County, Luofu Town, Wengcha Village, 34°25′34″N, 109°59′56″E, 1472 m, 4.VIII.2019, Pan Huang (CNU) ; 1♀, China, Inner Mongolia, Liangcheng County, Daihai Town, 40°36′9.8″N, 112°38′32″E, 1219 m, 7.IX.2013, Qiang Li (YNAU) .

First description of male. (Fig. 28) Body length 7.6 mm, forewing length 5.2 mm.

Color. Body almost black, with pale brown setae; mandible (Fig. 29) dark red; posterior margin of fore tibia and tegula reddish brown; wings (Fig. 28) infuscate, pterostigma dark brown; veins pale brown.

Head. Mandible (Fig. 29) without distinct medial transverse groove and preapical denticle, atmost with obsolete intermittent impressed line; clypeus (Fig. 29) laterally with dense punctures, medially sparser, apex medially emarginated; W: OW: L: IOD=10: 3.2: 6: 6.2; OOD: POD: Od=10: 10: 4; AOD: WAS: IAD: CL: CAW=6.2: 4.4: 2.9: 10: 3.0; frons (Fig. 29) without medial longitudinal narrow groove and carina, lower half with dense punctures, upper half with sparse punctures; vertex (Fig. 30) with sparse punctures, interspaces smooth.

Mesosoma . Pronotal anterior carina obsolete, anterior half of pronotum with sparse punctures, posterior half smooth; pronotum latero-ventrally with dense oblique striae; mesoscutum medially with dense punctures, laterally sparser; mesopleuron with small and dense punctures, somewhat reticulate; mesoscutellum and metanotum with sparse punctures (Fig. 31); propodeal dorsal face (Fig. 31) with dense crenulations, without submarginal carina and posteriorly with short longitudinal striae connecting transverse carina; propodeal areola (Fig. 31) subrectangular, weakly convergent posteriorly, APWL =3.4: 2.4: 4.2, medial longitudinal carina reaching posterior 2/3 of areola; lateral surface of propodeum dorsally with dense long oblique wrinkles, ventrally with dense minute punctures; posterior surface of propodeum granulated, without medial longitudinal carina; tegula atmost slightly longer than middle width, posterior margin without transverse impressed line; apex of marginal cell of forewing (Fig. 28) not exceeding second submarginal cell.

Metasoma. Anterior half of T 1 (Fig. 28) with sparse shallow punctures; subposterior area of T 1 close to apex and slightly depressed, with 2 transverse rows of punctures; S1 (Fig. 33) anteriorly with coarse and deep punctures, posteriorly smooth, without posterolateral groove; T 2 anteriorly with costate transverse depression (Fig. 28); T 3– T 6 anteriorly with dense punctures, posteriorly sparser; S2–S5 with sparser punctures than T 3– T 6; S5 (Fig. 32) with lateral denticle, and without deep orifice.

Female. Body length 12.1–13.9 mm, forewing length 7.6–9.4 mm. Clypeus basally with coarse punctures and apically smooth, apex medially truncated; frons and vertex with sparse punctures; W: OW: L: IOD=10: 5.8: 5.1: 6.5; OOD: POD: Od=10: 7.3: 2.4; AOD: WAS: IAD: CL: CAW=10: 5: 1.7: 5.5: 5.3; pronotal anterior carina incomplete, medially weak; anterior medial groove of mesoscutum separated from notaulus; tegula atmost slightly longer than middle width, posterior margin without transverse impressed line; second intercubital vein of forewing strongly sinuous; inner face of hind basitarsus medially with longitudinal groove; propodeal areola rectangular, APWL =2.5: 2.1: 5.4, medial longitudinal carina reaching posterior 2/3 of areola; S1 with lateral groove on posterior half; pygidium anteriorly and medially with coarse dense punctures, posteriorly coriaceous.

Distribution. China (Inner Mongolia, Shaanxi).