Female. Holotype. Body length 0.51 mm. Head dark brown, eyes black. Antenna mostly brown except pedicel and C1 paler. Thorax with pronotum, most part of mid-lobe of mesoscutum and axillae dark brown, side lobes and posterior part of mid-lobe of mesoscutum pale brown, scutellum and propodeum yellowish-white. Scutellum with light blue reflection in dorsal view. Wings hyaline, distinctly infuscated below marginal vein of fore wing, venation brown. Legs extensively dark brown, except fore coxae apically, mid coxae completely, apical half of all tibiae and tarsi pallid. Metasoma dark brown with the third valvula pale brown.

Head (Fig. 1a), in frontal view, about as long as wide; frontovertex about 0.5× head width. Ocellar triangle with apical angle obtuse. OOL larger than OCL and subequal to OAL. The sculpture and setation on the upper face as in a. Toruli with lower margins separated from mouth margin less than their own longest diameter and distance between toruli about as long as their longest diameter. Mandible tridentate. Antenna (Fig. 1b) with radicle 2.0× as long as wide, scape 4.75× as long as wide; pedicle 1.76× as long as wide and 1.20× as long as F1; F1 1.79× as long as wide, F2 subquadrate and 0.68× as long as F1; C1 2.3× as long as wide, a little longer than the two funicle segments combined; C2 about as long as or somewhat shorter than C1; C3 a little longer than both C1 and C2; three clava segments gradually decreasing in width distad. Measurements, length (width): radicle, 30 (15); scape, 95 (20); pedicle, 37.5 (21.3); F1, 31.3 (17.5); F2, 21.3 (20); clava 180 (25).

a

b

c

d

e

f

Figure 1.

Pteroptrix pedicellata sp. n., female.

a: Head, frontal view  
b: Antenna  
c: Mesosoma, dorsal from paratype  
d: Fore wing  
e: Legs  
f: Metasoma, dorsal  

Mesosoma. Mid-lobe of mesoscutum and axillae with reticulate sculpture; scutellum with extremely faint reticulation. Mid-lobe of mesoscutum 0.73× as long as wide, with 12 nearly symmetrically arranged setae; each side lobe and axilla with 1 seta; scutellum 0.40× as long as wide and 0.63× as long as mid-lobe of mesoscutum. Placoid sensilla very close to the anterior scutellar setae; distance between anterior pair of scutellar setae 1.50× as long as the distance between posterior pair. Propodeum 2.60× the median length of metanotum and slightly salient posterior-medially. Mesopostphragma extending to posterior margin of TII. Fore wing (Fig. 1d) 3.55× as long as wide, densely and evenly setose; costal cell 1.58× as long as marginal vein, with 4 setae distally on dorsal surface and 4 relatively shorter setae medially on ventral surface; submarginal vein with 1 seta, marginal vein with 4 long setae along anterior margin; basal cell with 2 setae below apex of submarginal vein; marginal fringe 0.71× as long as the greatest width of disc. Hind wing 8.8× as long as wide, with 3 rows of setae on disc; marginal fringe 2.5× the greatest width of disc. Legs (Fig. 1e) with mid-tibial spur 1.31× as long as corresponding basitarsus. Measurements, length (width): fore wing, 495 (139.5); costal cell, 156.4; marginal vein, 99; stigmal vein, 30; marginal fringe, 99; hind wing, 435.6 (49.5); marginal fringe, 123.8; mid tibia, 158.4; mid-tibial spur, 45; mid basitarsus, 34.4; hind tibia, 178.2.

Metasoma (Fig. 1f). Ovipositor originating from base of TIV, 1.23× as long as mid-tibia and 1.09× as long as hind tibia, distinctly exserted at apex of gaster. Second valvifer 3.11× as long as third valvula, the latter 1.38× as long as mid basitarsus. Measurements: ovipositor, 195; second valvifer, 147.5; third valvula, 47.5.

Male. Unknown.

Female. Body length 0.51−0.55mm. Body largely brown to dark brown; antenna (Fig. 1b) mostly brown except pedicel and C1 paler; legs (Fig. 1e) extensively dark brown, except mid coxae and apical half of all tibiae pallid. Antennal formula 1123, radicle 2.0× as long as wide, scape 4.56−4.75× as long as wide, about as long as the length of pedicel and funicle combined; pedicle 1.58−1.76× as long as wide and 1.11−1.31× as long as F1; F1 1.22−1.86× as long as wide; F2 subquadrate, 0.65−0.75× as long as F1; clava 3.27−3.60× as long as funicle. Funicle segments devoid of sensilla, each clava segment with 1 or 2 sensilla. Mid-lobe of mesoscutum (Fig. 1c) with 11−13 setae, each side lobe with 1 seta. Fore wing (Fig. 1d) 3.54−3.58× as long as wide and with its marginal fringe 0.71−0.77× wing width. Ovipositor 1.16−1.23× as long as mid-tibia and with its second valvifer 2.70−3.11× as long as third valvula. The third valvula 1.38−1.54× as long as mid basitarsus.

The specific name refers to the fact that this species is with normal sized pedicel in comparison with Pteroptrix macropedicellata (Malac).

Tibet, Chayu County, Xiachayu Town

Archenomus leptocerus Huang: Huang et al. (1992): 167. Holotype female, China, Fujian, FACC, not examined.

Archenomus leptocerus: Huang (1994): 120; Xu and Huang (2004): 311.

Pteroptrix leptocera: Viggiani and Ren (1993): 237.

China (Fujian, Yunnan [new record]).

Archenomus orientalis Silvestri 1909: 563. Italy, not examined.

Archenomus orientalis: Prinsloo and Neser (1990): 24; Huang et al. (1992): 164; Huang (1994): 103; Xu and Huang (2004): 313.

Pteroptrix orientalis: Viggiani and Garonna (1993): 59; Viggiani and Ren (1986): 237.

China (Liaoning [new record], Shandong [new record], Fujian), South Korea, Japan, Italy, Dominican Republic (Noyes 2016).

Archenomus processus Huang (1991): 396. Holotype female, China, Jiangsu, FACC, not examined.

Archenomus processus: Huang (1994): 114; Xu and Huang (2004): 316.

Pteroptrix processa: Viggiani and Ren (1993): 237; Viggiani and Garonna (1993): 61.

Male. Body length 0.5 mm. Colouration similar to that of female, largely brown to dark brown. Antenna (Fig. 3a) with radicle 2.73× as long as wide; scape 4.33× as long as wide; pedicle slightly longer than wide and 0.63× as long as F1; funicle segments with F2 shortest, F3 a little longer than F1. Mid-lobe of mesoscutum with 2 setae, propodeum distinctly salient posterior-medially and 3.6 × as long as metanotum. Fore wing (Fig. 3b) 2.8 × as long as wide, marginal fringe 0.48 × as long as the greatest width of wing. Genitalia as in Fig. 3c and 0.55 × as long as midtibia.

a

b

c

Figure 3.

Pteroptrix processa, male

a: Antenna  
b: Fore wing  
c: Genitalia  

China (Fujian, Jiangsu, Beijing [new record], Shaanxi [new record]).