Utetes subrosae Tan & van Achterberg, sp. n.

(Figs 51–63)

Type material. Holotype, ♀ (NWUX) “NW China: Ningxia, Liupan Mt., Jingyuan, Dongshanpo For [est] Farm, 35°23’26”N 106°20´34.27”E, 4.viii.2015, c . 1800 m, Jiangli Tan, NWUX ”. Paratypes: 1 ♂ (RMNH), same data as holotype; 1 ♂ (NWUX), id., but Erlonghe Forest Farm, 35°23’24.14”N 106°20´41.43”E, 2.viii.2015 ; 1♀ (RMNH), id., but Qiuqianjia Forest Farm, 35°32’56.94”N 106°24´50.89”E, 4.viii.2015, c. 1900 m ; 1♀ (NWUX) “NW China: Shaanxi, from Huangguan to Xunyangba, Ningshaan, N33.54°, E105.36°, 1.vii.–17.viii.2016, 1236 m, black Mal. trap, Tan JL & Tan QQ, NWUX ”.

Comparative diagnosis. Similar to U. rosae (Tobias, 1977) but the new species has the setose part of ovipositor sheath 0.3 × hind tibia (0.8 × in U. rosae), the mesoscutum with sharply protruding “shoulders” anteriorly (rounded anteriorly); the hind femur approx. 4 × as long as wide (approx. 3 ×) and the mediolongitudinal carina of propodeum short (absent). It shares with U. valens (Papp, 1978) from Korea the distinct “shoulders”, but U. valens has vein 1-SR of fore wing 0.8 × as long as vein 1-M (0.6 × in U. subrosae); vein m-cu of hind wing present (absent) and setose part of ovipositor sheath 0.6 × hind tibia (0.3 ×).

Description. Holotype, ♀, length of body 3.2 mm, of fore wing 3.4 mm.

Head. Antenna with 38 antennomeres, medium-sized bristly setose and 1.3 × as long as fore wing; third antennomere 1.2 × as long as fourth antennomere, length of third, fourth and penultimate antennomeres 2.4, 2.0 and 1.8 × their width, respectively (Figs 56–58); length of maxillary palp 1.1 × height of head; labial palp segments slender; occipital carina distinctly separated from hypostomal carina and carina ventrally reduced and dorsally absent; hypostomal carina very wide; length of eye in dorsal view 2.5 × temple; frons shallowly depressed anteriorly but with median crest and in front of anterior ocellus with shallow triangular depression, medially smooth and glabrous, laterally punctulate and setose (Fig. 60); face sparsely and finely punctate but medial crest area smooth (Fig. 59); width of clypeus 2.8 × its maximum height and 0.6 × width of face; clypeus moderately convex medially, with some coarse punctures and protruding forwards, ventrally straight and rather thin (Fig. 59); hypoclypeal depression large (Fig. 59) and labrum with some coarse punctures; malar suture absent and area flat; length of malar space 0.9 × basal width of mandible; mandible triangular and with long narrow ventral and dorsal carinae (Fig. 63).

Mesosoma. Length of mesosoma 1.3 × its height; pronope large slit-shaped, deep; pronotal side largely smooth, only medially and posteriorly crenulate; epicnemial area largely smooth; precoxal sulcus wide and coarsely crenulate, nearly up to anterior margin of mesopleuron, pointing to area near middle coxa and remaining far from posterior margin of mesopleuron; remainder of mesopleuron smooth (except row of punctulation behind precoxal sulcus) and strongly shiny; pleural sulcus smooth; anterior groove of metapleuron with few indistinct crenulae (Fig. 53); notauli largely absent on disc, but anteriorly shallowly impressed behind strongly developed “shoulders” (Fig. 54); lateral lobes of mesoscutum largely glabrous, only notaulic courses and middle lobe medially and anteriorly with setae; medio–posterior depression of mesoscutum deep, linear and long; scutellar sulcus rather wide and moderately crenulate; scutellum distinctly convex medially, smooth between sparse punctulation and only laterally densely setose (Fig. 54); propodeum with short medio-longitudinal carina connected to irregular and distinctly transverse carina, medially rugose and remainder mainly smooth (Figs 54–55).

Wings. Fore wing (Fig. 52): pterostigma triangular; 1-R1 ending nearly at wing apex and 1.5 × as long as pterostigma; r:3-SR:SR1 = 3:30:53; 2-SR:3-SR:r-m = 20:30:10; r and base of 3-SR widened; 1-SR 0.6 × 1-M; 1-M and SR1 weakly curved; m-cu subinterstitial; cu-a oblique and narrowly postfurcal; first subdiscal cell closed, CU1b nearly as long as 3-CU1; apical 0.3 of M+CU1 sclerotized. Hind wing (Fig. 52): M+CU:1-M:1r–m = 21:20:15; cu-a straight; m-cu completely absent.

Legs. Length of femur, tibia and basitarsus of hind leg 4.1, 8.8 and 5.4 × as long as wide, respectively; hind femur and tibia with long setae, especially femur ventrally and tibia dorsally (Fig. 61); carinula of hind tibia long and slightly sinuate (Fig. 62).

Metasoma. Length of first tergite 1.1 × its apical width, its surface evenly convex medially, largely smooth except some medium-sized depressions, without median carina and with dorsal carinae remaining separated and present in basal 0.9; second tergite with pair of short basal depressions; second and following tergites smooth (Fig. 55); length of setose part of ovipositor sheath 0.09 × fore wing (entire visible sheath 0.13 ×) and 0.3 × hind tibia (Fig. 61).

Colour. Black; palpi, coxae, trochanters and trochantelli ivory; clypeus (except dorsally), mandible (but teeth dark brown), scapus ventrally, tegulae, and remainder of legs (but telotarsi dark brown) pale yellowish; vague patch at temple dorsally and inner orbita narrowly chestnut brown; apex of third–seventh tergites membranous and brown; metasoma ventrally dark brown; wing membrane subhyaline but submedially near veins weakly infuscate; veins of hind wing and of basal third of fore wing (except C+SC+R) brown; pterostigma and remainder of veins dark brown.

Variation. Length of body 2.6–3.2 mm, of fore wing 3.0– 3.4 mm; antennomeres of ♀ 35(1), 37(1) or 38(1) and of ♂ 36(1) or 38(1), length of first tergite 1.1–1.3 × its apical width, length of setose part of ovipositor sheath 0.08–0.09 × fore wing and 0.3 × hind tibia; vein m–cu of fore wing subinterstitial or narrowly postfurcal. The males have the head entirely black dorsally and the precoxal sulcus less extensively crenulate.

Distribution. China (Ningxia, Shaanxi).

Map from: https://en.wikipedia.org/wiki/File: China _edcp_relief_location_map.jpg Biology. Unknown.

Etymology. From “sub” (Latin for “under, somewhat”) and the specific name “ rosae ” because it is close to U. rosae (Tobias, 1977) .

Notes. We examined a very similar male from Yunnan (NWUX: Dali, Mt. Cang) but it has vein 1-SR+M of fore wing strongly sinuate and vein r of fore wing longer than in U. subrosae .