Paraphytis bannaensis Chen & Li, 2021

Chen, Ye, Chen, Hai-feng & Li, Cheng-de, 2021, Two new species of Paraphytis (Hymenoptera, Aphelinidae) from Southwest China, ZooKeys 1021, pp. 53-63 : 53

Paraphytis bannaensis Chen & Li sp. nov. Figs 1-10

Type material.

Holotype: ♀ [on slide, A-Pa2020011], China, Yunnan Province, Xishuangbanna , Mengla County, Menglun Town (21°54.24'N, 101°15.98'E, elevation ca 541 m), 13.v.2019, Zi-long Bai, Zhi-gang Chen, Cheng Wang, Hao Yu leg; deposited in LFNU. Paratypes : 17♀♀ [10♀♀ on slides, A-Pa202001- A-Pa2020010; 7♀♀ in alcohol, LFNU], same data as holotype . 1♀ [on slide, A-Pa2020012, LFNU], CHINA, Yunnan Province, Xishuangbanna, Mengla County, Menglun Town (21°54.34'N, 101°16.79'E, elevation ca 618 m), 2.v.2019, Zi-long Bai, Zhi-gang Chen, Cheng Wang, Yan-feng Tong, Hao Yu leg.

Diagnosis.

Paraphytis bannaensis sp. nov. can be distinguished from other species in this genus by the following combination of characters: 5 antennomeres, midlobe of mesoscutum with two dark stripes, mostly dark brown profemur, dark tarsomeres, forewing with a brown band below apex of submarginal vein, with a broad infuscated patch below stigmal vein, and relatively long ovipositor which at least 2.0 × as long as mesotibia.

Description.

Female. Holotype. Length 0.8 mm.

Coloration (Fig. 1 ). Head mostly pale yellow, with vertex orange yellow, lower half of malar space and mouth margin dark. Occipital foramen with a dark brown transverse line on upper margin, and with lateral margins dark brown. Ocelli orange red. Setae on head dark. Antenna with funicle segments and distal half of clava dark brown, remainder yellow somewhat suffused with brown. Mandible brown with apex darker. Pronotum yellow but with central region and posterior margin dark. General coloration of mesosoma (Fig. 1 ) yellow, but with dark markings as followings: anterior margin of midlobe of mesoscutum and notauli; midlobe with a pair of submedian longitudinal stripes, which curve out at anterior ends; mesoscutellum with similar submedian longitudinal stripes as on midlobe, and additionally with two oblique stripes along lateral margins (not clearly visible in Fig. 1 , but in the fresh specimen the lateral oblique stripes obviously merge with the submedian stripes at each posterior margin). Mesopleuron with posterior half dark brown; propodeum with lateral sides brown, and with a dark “V” shaped streak along posterior margin. Forewing (Fig. 6 ) with veins and posterior margin brown; disc with an oblique brown band below apex of submarginal vein, and with broad infuscated patch below stigmal vein and area around stigmal vein darker. Legs (Fig. 8 ) pale yellow with brown parts as followings: extreme base of procoxae; profemur dorsally except apical one third; protibiae with a broad ring basally; mesofemur with dorsal surface and distal one third; mesotibia with two rings, one near base, the other on medial area; base of metacoxae, metafemur with a curved band on dorsal surface distally, metatibia pigmented as mesotibia; all tarsomeres brown, with basitarsi darker. Metasoma (Figs 1 , 9 ) with petiole dark, Gt1-5 each with pale brown to brown bands on dorsal surface medially and dark bands on lateral sides, the median bands connecting the lateral bands on Gt1 and Gt5; Gt6 brown, the following two tergites pale yellow. Ovipositor brown.

Head (Fig. 2 ), in frontal view, 0.8 × as high as wide; weakly reticulated. Frontovertex 0.4 × head width, with two pairs of long setae, one on vertex and another along occipital margin, and with about 20 short brown setae. Ocellar triangle (Fig. 1 ) with apical angle 94°. Mandible bidentate. Antenna (Fig. 3 ) with 5 antennomeres, scape 5.0 × as long as wide, slightly shorter than clava; pedicel 2.0 × as long as wide, 1.2 × as long as F1 and F2 combined; F1 triangular, ventral margin longer than dorsal margin, a little longer than wide; F2 trapezoidal, dorsal margin 1.6 × longer than ventral margin, 0.8 × as long as wide, subequal to F 1 in length, 1.7 × width of F1; clava slightly curved medially, 4.1 × as long as wide with 7 longitudinal sensilla. Measurements, length (width): scape 112.5 (22.5); pedicel 45 (22.5); F1 17.5 (15); F2 20 (25); clava 145 (35).

Mesosoma (Figs 4 , 5 ). Dorsum of mesosoma reticulate, with sculpture on dark areas more evident. Mesoscutum with midlobe 0.6 × as long as wide, about as long as mesoscutellum, and with 12 setae; lateral lobe of mesoscutum with 4 setae; axilla with 1 seta; mesoscutellum pentagonal, 0.6 × as long as wide with 2 pairs of setae. Distance between anterior pair of scutellar setae 1.4 × that between posterior pair. Placoid sensilla just mesad of anterior scutellar setae, and distance between sensilla about equal to distance between the posterior scutellar setae. Metanotum narrow. Propodeum with a thin seta (Fig. 4 , inset) anterior to propodeal spiracle, 4.7 × length of metanotum, and posterior margin with 5 (left side) + 6 (right side) crenulae (Fig. 5 ).

Wings. Forewing (Figs 6 , 7 ) 2.6 × as long as wide, marginal setae 0.1 × wing width. Costal cell 0.7 × length of marginal vein, with 4 fine setae medially and 2 coarse setae apically; submarginal vein (Fig. 7 ) with 5 setae and 18 bullae; marginal vein with 9 setae along anterior margin; basal cell with about 17 setae in nearly 4 transverse lines. Hind wing hyaline, 5.0 × as long as wide, with marginal setae 0.5 × wing width. Measurements, length (width): forewing 760 (290); costal cell 150; submarginal vein 130; marginal vein 230; stigma vein 15; hind win, 600 (120); marginal setae of hind wing 60.

Legs (Fig. 8 ). Mesotibial spur as long as corresponding basitarsus. Length measurements: mesotibia 190; mesotibial spur 75; mesobasitarsus 75.

Metasoma (Fig. 9 ). Petiole strongly reticulated on central area just below crenulae. Gt1-5 with elongate reticulations on lateral sides, Gt5 with imbricate sculpture on dorsal surface. Setation of tergites on dorsal surface as follows: Gt1 with 3 setae on each side, Gt2 with 4 setae on left side and 3 setae on right side (4+3), Gt3 5+4, Gt4 4+4, Gt5 4+4, Gt6 and Gt7 each with 10 setae, Gt8 with 4 setae. Ovipositor originating from apex of Gt1, 2.4 × as long as mesotibia, and slightly exerted. Second valvifer 3.1 × as long as third valvula; third valvula with several pale setae apically, and 1.5 × as long as mesobasitarsus. Length measurements: ovipositor 450; second valvifer 340; third valvula 110.

Male. Unknown.

Variation.

Scape 5.0-6.4 × as long as wide, clava 3.6-4.8 × as long as wide. Forewing 2.6-2.9 × as long as wide, hind wing 5.0-5.7 × as long as wide. Basal cell with 15-22 setae. Posterior margin of propodeum with 5+6 to 6+7 crenulae (Figs 5 , 10 ). Gt2-5 each with 7-10 setae. Ovipositor originating from apex of Gt1 to apex of Gt2, and 2.1-2.4 × as long as mesotibia.

Remarks.

This species resembles P. maculatus (Shafee), with both having 5 antennomeres and similar coloration. They can be distinguished from each other by the following: midlobe of mesoscutum with only a pair of submedian longitudinal dark brown stripes, which are obviously curving out at anterior ends (vs with four longitudinal brown stripes, and with the pair of submedian stripes not curving out at anterior ends in P. maculatus , cf. fig. 467 in Rosen and DeBach 1979; fig. 151 in Hayat 1998; fig. 39 in Kim and Heraty 2012); legs with profemur extensively brown and all tarsomeres brown to dark brown (vs profemur pale yellow somewhat faintly suffused with dusky distally, tarsomeres mostly pale except all basitarsi and the second tarsomere of fore leg dark brown); forewing with a brown band and broad infuscated patch, without a patch of thick, darker setae in middle of proximal margin of linea calva (vs with only an oval infuscated patch below stigmal vein and with a patch of thick, darker setae in middle of proximal margin of the linea calva cf. fig. 152 in Hayat 1998); Ovipositor at least 2.0 × as long as mesotibia (vs less than 2.0 ×).

Host.

Unknown.

Etymology.

Named after the locality of type specimen.

Distribution.

China (Xishuangbanna of Yunnan Province).

Figures

Figures 1 - 10. Paraphytis bannaensis sp. nov., holotype female (except Fig. 10) 1 body, dorsal view 2 head, frontal view 3 antenna, red arrows indicate measurements of length and width 4 mesosoma and propodeal seta 5 crenulae 6 forewing 7 submarginal vein 8 legs 9 metasoma 10 crenulae, paratype.