taxonID	type	description	language	source
3971878AFFF7FFFC83B866C5FC87FB3C.taxon	diagnosis	Diagnosis. The adults of Sisyrina are characterized by the presence of three RP branches, the presence of seven subapical gradates that each is interrupted centrally by a rounded hyaline spot except anterior-most one and posteriormost one in fore- and hindwing, the short and simple male sternum 9, and the female gonocoxite 9 acutely tapering distad.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFFC83B866C5FC87FB3C.taxon	distribution	Distribution. Australia; China; India; Laos; Vietnam.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	description	(Figs. 1 – 4)	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	diagnosis	Diagnosis. The new species is characterized by the antenna with scape and pedicel brown and the remaining distal segments pale yellow (Fig. 1 B), the forewing with the distance between each crossvein of RP area and the forking point of each RP branch it connects about twice as long as the length of corresponding marginal RP fork (Fig. 2 A), the male gonocoxite 9 short and ovoid with gonostylus 9 directed medially (Fig. 3), the female tergum 9 with dorsal margin nearly as long as posterodorsal margin, and the female gonocoxite 9 nearly four times as long as wide (Fig. 4 D – E).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	description	Description. Male. Body length 2.2 – 2.8 mm; forewing length 2.7 – 3.2 mm and width 1.1 – 1.3 mm; hindwing length 2.4 – 2.9 mm and width 1.0 – 1.3 mm. Body brown. Head (Fig. 1) mostly brown, covered by many long setae; vertex with lateral and posterior margins, as well as along anterior part of ecdysial suture paler; compound eyes prominent and black. Scape brown, densely covered by long, stiff setae, swollen medially, about twice as long as wide; pedicel brown, slightly longer than flagellomere; 32 – 34 flagellomeres, pale yellow, each covered by many long setae; terminal flagellomere narrow distally, bullet-shaped. Maxillary and labial palpi brown; terminal segment of maxillary palpus triangular in lateral view, broadest at base, tapering distally. Thorax brown, covered by many long setae. Legs slender and pale yellow, meso- and metacoxae brown; densely covered by long setae; tarsomere 1 equal to combined length of tarsomeres 2 - 4; pretarsal claws simple; arolium present. Forewing (Fig. 2 A) oval, distally rounded; trichosors present along distal margin; distinct dark longitudinal stripes present among longitudinal veins; most crossveins with brown shadings except basal ones; most forking points of longitudinal veins with brown shadings; pterostigma indistinct, brownish, with indistinctive crossveins; costal area with eight to ten crossveins proximad pterostigma; two scp-ra crossveins present basally and distally; ScP weakened distally, not running into RA; RP with three main branches; three ra-rp crossveins; MA dichotomously branched distally; two rp-ma crossveins present; MP branched into MP 1 and MP 2, both branches bifurcated or trifurcated; two ma-mp, one mp 1 - mp 2 present; CuA with four to five pectinate and simple branches; three mp-cua crossveins; CuP and A 1 simple; A 2 distally bifurcated; one cua-cup, one cup-a 1 present; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posterior-most one (3 mp-cua similarly interrupted on left forewing of holotype); distance between each crossvein of RP area and forking point of each RP branch it connects to about twice as long as corresponding marginal RP fork; 2 rp-ma, 2 ma-mp and mp 1 - mp 2 crossveins respectively connecting stem of MA, MP 1 and MP 2. Hindwing (Fig. 2 B) oval, distally rounded; trichosors present along distal margin; most crossveins with pale brown shadings except basal ones; pterostigma indistinct, brownish, with indistinctive crossveins; costal area with six to nine crossveins proximad pterostigma; one scp-ra crossveins present distally; ScP weakened distally, not running into RA; RP with three main branches; two ra-rp crossveins; MA dichotomously branched distally; one rpma crossvein present; MP branched into MP 1 and MP 2, both branches distally bifurcated or trifurcated; two ma-mp and one mp 1 - mp 2 crossveins present; CuA with four to five pectinate and simple branches; one mp-cua crossvein; CuP, A 1 and A 2 simple; one a 1 - a 2 crossvein present; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posterior-most one, basal ma-mp crossvein similarly interrupted. Abdomen (Fig. 3) yellowish brown; pregenital segment with small tergum and larger sternum, covered by many long setae. Sternum 9 nearly rectangular in lateral view and bow-shaped in caudal view, slightly longer than ectoprocts, densely covered by long setae. Gonocoxite 9 short, ovoid, much more sclerotized on lateral portion than other genital sclerites, densely covered by long setae; gonostylus 9 straightly directed medially and acutely pointed at tip. Gonocoxites 11 arcuate, lateral ending slightly concaved in lateral view; gonostylus 11 paired, arched, surrounding base of gonocoxite 9, medially broadened and distinctly sclerotized, ventrally with several setae. Ectoprocts densely covered by long setae, posteromedially concaved to its half-length, tapering ventrally and rounded distally; callus cerci with four to five trichobothria. Hypandrium composed of a pair of broadly subtriangular lobes, V-shaped in dorsal and ventral view. Female. Morphology mostly similar to male. Body length 1.9 – 3.0 mm; forewing length 2.8 – 3.5 mm and width 1.1 – 1.4 mm; hindwing length 2.4 – 2.9 mm and width 1.0 – 1.2 mm. Abdomen (Fig. 4 C – E) yellowish brown; pregenital segment with small tergum and larger sternum, covered by many long setae. Tergum 8 covered by many short setae; dorsally separated, dorsolaterally broadened, surrounding spiracle; ventrolaterally narrowed and extending ventrad. Gonocoxites 8 fused into a small sclerite that is concaved posteriorly. Tergum 9 densely covered by short setae, nearly pentagonal, nearly as long as wide, dorsal margin nearly as long as posterodorsal margin; anterodorsal corner weakly sclerotized. Gonocoxite 9 densely covered by short setae, slightly curved distally, nearly four times as long as wide. Ectoprocts densely covered by long setae; posteroventrally tapering and posteromedially concaved to its 2 / 3 length; callus cerci with 4 – 5 trichobothria.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	materials_examined	Type materials. Holotype ♂, China: Guangxi, Chongzuo, Longzhou, Zhubu, Nonggang, Nonggang Wild Station of Nonggang National Nature Reserve [22 ° 28 ′ N, 106 ° 57 ′ E], 180 m, light trap, 5. VI. 2021, Yan Lai, Ying Yang (CAU). Paratypes: 1 ♀, China: Guangxi, Chongzuo, Longzhou, Zhubu, Nonggang, Nonggang National Nature Reserve [22 ° 28 ′ N, 106 ° 57 ′ E], 180 m, light trap, 3. VI. 2021, Yan Lai, Ying Yang (CAU); 2 ♂ 1 ♀, China: Guangxi, Chongzuo, Longzhou, Zhubu, Nonggang, Nonggang Wild Station of Nonggang National Nature Reserve [22 ° 28 ′ N, 106 ° 57 ′ E], 180 m, light trap, 5. VI. 2021, Yan Lai, Ying Yang (CAU); 1 ♂, China: Guangxi, Chongzuo, Ningming, Tuolong, Yaoda, Longrui Wild Station of Nonggang National Nature Reserve [22 ° 15 ′ N, 107 ° 2 ′ E], 110 m, 6. VI. 2021, Yan Lai, Ying Yang (CAU); 2 ♀, China: Guangxi, Chongzuo, Ningming, Tuolong, Yaoda, Longrui Wild Station of Nonggang National Nature Reserve [22 ° 13 ′ N, 107 ° 2 ′ E], 120 m, 7. VI. 2021, light trap, Yan Lai, Ying Yang (CAU); 1 ♂, China: Guangxi, Chongzuo, Daxin, Shuolong, Detian, Detian Waterfall [22 ° 85 ′ N, 106 ° 72 ′ E], 5. VI. 2021, Xingyue Liu (CAU); 11 ♂ 7 ♀, China: Guangxi, Chongzuo, Ningming [22 ° 43 ′ N, 106 ° 64 ′ E], 19. Ⅴ. 1984, Fasheng Li (CAU); 2 ♂ 1 ♀, China: Guangxi, Chongzuo, Ningming [22 ° 43 ′ N, 106 ° 64 ′ E], 20. Ⅴ. 1984, Fasheng Li (CAU); 1 ♀, China: Guangxi, Chongzuo, Ningming [22 ° 43 ′ N, 106 ° 64 ′ E], 21. Ⅴ. 1984, Fasheng Li (CAU); 1 ♀, China: Guangxi, Chongzuo, Ningming [22 ° 43 ′ N, 106 ° 64 ′ E], 25. Ⅴ. 1984., Fasheng Li (CAU); 3 ♂ 7 ♀, China, Guangxi, Chongzuo, Ningming, Longrui Nature Reserve [22 ° 14 ′ N, 107 ° 6 ′ E], 20. Ⅴ. 1984, Fasheng Li (CAU); 1 ♂, Laos: Xaignabouri, near Hatdai [18 ° 29 ′ N, 101 ° 28 ′ E], 250 m, 26. III. 2016, Xingyue Liu (CAU).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	etymology	Etymology. This new species is dedicated to Prof. Fasheng Li, who collected valuable lacewing specimens from China during the past several decades, including some specimens of this new species.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	distribution	Distribution. China (Guangxi); Laos (Xaignabouri).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF7FFF883B8605EFB9FF837.taxon	discussion	Remarks. This new species can be easily differentiated from S. nirvana, S. tropica and S. qiong by the color of the antenna and genital characters. In S. fashengi sp. nov., the antenna has only basal two segments darker than remaining part, the male gonocoxite 9 is short and ovoid, and the female tergum 9 is nearly as long as wide. While in the latter three species, the antenna has the basal seven to eight segments darker than remaining part, the male gonocoxite 9 is subcylindrical (S. nirvana and S. tropica) or board basally and rod-shaped distally (S. qiong), and the female tergum 9 is much longer than wide (the female of S. qiong is unknown).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	description	(Fig. 5)	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	diagnosis	Diagnosis. The new species is characterized by the antenna with scape and pedicel brown but with several basal flagellomeres pale yellow (Fig. 5 A – B), the forewing with the distance between each crossvein of RP area and the forking point of each RP branch it connects slightly longer the length of corresponding marginal RP fork (Fig. 5 A), the female tergum 9 with dorsal margin nearly twice as long as posterodorsal margin, and the female gonocoxite 9 nearly three times as long as wide (Fig. 5 D – E).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	description	Description. Female. Body length 2.4 mm; forewing length 2.8 mm and width 1.1 mm; hindwing length 2.5 mm and width 1.1 mm. Body largely brown. Head (Fig. 5 A – B) mostly brown, densely covered by long setae; vertex with anterior half, lateral and posterior margins paler; compound eyes prominent and black. Scape brown, densely covered by long setae, swollen medially, about twice as long as wide; pedicel brown, slightly longer than flagellomere; flagellum partially damaged, remaining basal three flagellomeres on left antenna and seven flagellomeres on right antenna pale yellow, each covered by many long setae. Maxillary and labial palpi brown; terminal segment of maxillary palpus triangular in lateral view, broadest at base, tapering distally. Thorax brown, densely covered by long setae. Legs slender and pale, meso- and metatrochanter, meso- and metacoxae brown, densely covered by long setae; tarsomere 1 equal to combined length of tarsomeres 2 - 4; pretarsal claws simple; arolium present. Forewing (Fig. 5 A) oval, distally rounded; trichosors present along distal margin; distinct dark longitudinal stripes present among longitudinal veins; most crossveins with dark brown shadings except basal ones; most forked points of longitudinal veins with dark brown shadings; pterostigma indistinct, brownish, with indistinctive crossveins; costal area with eight crossveins proximad pterostigma; two scp-ra crossveins present basally and distally; ScP weakened distally, not running into RA; RP with three main branches; three ra-rp crossveins; MA dichotomously branched distally; two rp-ma crossveins present; MP branched into MP 1 and MP 2, both branches bifurcated or trifurcated; two ma-mp and one mp 1 - mp 2 crossveins present; CuA with four pectinate and simple branches; three mp-cua crossveins; CuP and A 1 single; one cua-cup crossvein; A 2 distally bifurcated; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posterior-most one; distance between each crossvein of RP area and forking point of each RP branch it connects to slightly longer corresponding marginal RP fork; 2 rp-ma, 2 ma-mp and mp 1 - mp 2 crossveins respectively connecting stem of MA, MP 1 and MP 2. Hindwing (Fig. 5 A) oval, distally rounded; trichosors present along distal margin; most cossveins with brown shadings except basal ones; pterostigma indistinct, brownish, with indistinctive crossveins; costal area with six crossveins proximad pterostigma; one scp-ra crossvein present distally; ScP weaken distally, not running into RA; RP with three main branches; two ra-rp crossveins present; MA dichotomously branched distally; one rp-ma crossvein present; MP branched into MP 1 and MP 2, both dichotomously forked; two ma-mp and one mp 1 - mp 2 crossveins present; CuA with four pectinate and simple branches; CuP bifurcated, A 1 and A 2 simple; one a 1 - a 2 crossvein; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posterior-most one, basal ma-mp crossvein similarly interrupted. Abdomen (Fig. 5 C – E) pale brown; pregenital segment with small tergum and larger sternum, covered by many long setae. Tergum 8 covered by many short setae; dorsally separated, dorsolaterally broadened, surrounding spiracle; ventrolaterally narrowed and extending ventrad. Gonocoxites 8 fused into a small sclerite that is concaved posteriorly. Tergum 9 densely covered by short setae, nearly pentagonal, slightly longer than wide, dorsal margin nearly twice as long as posterodorsal margin; anterodorsal corner weakly sclerotized. Gonocoxite 9 densely covered by long setae, abruptly curved downward distally, nearly three times as long as wide. Ectoprocts densely covered by long setae, posteroventrally tapering and posteromedially concaved nearly to its half-length; callus cerci with four trichobothria. Male. Unknown.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	materials_examined	Type material. Holotype ♀, Vietnam: Dak Lak, Yok Don National Park [12 ° 87 ′ N, 107 ° 80 ′ E], 200 m, 7. Ⅴ. 2012, Xingyue Liu (CAU).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	etymology	Etymology. The specific epithet “ vietnamica ” refers to the distribution of the new species only known from Vietnam.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	distribution	Distribution. Vietnam (Dak Lak).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFF0FFFA83B865D8FCCDF815.taxon	discussion	Remarks. This species appears to be closely related to S. fashengi sp. nov. in having similar antennal coloration (scape and pedicel brown, but flagellum pale yellow), but S. fashengi sp. nov. can be distinguished from S. vietnamica sp. nov. by the female tergum 9 in which the dorsal margin is nearly as long as posterodorsal margin, and the female gonocoxite 9 nearly four times as long as wide, with feebly curved apex. In S. vietnamica sp. nov. the dorsal margin of female tergum 9 is nearly twice as long as posterodorsal margin, and the female gonocoxite 9 is three times as long as wide, with hook-like apex. Considering the consistent characteristics within S. fashengi sp. nov., especially the female genitalia that has no intraspecific variation, this new species albeit being described based on a single female should be justified. Moreover, the occurrence of this new species from southern Vietnam, which is distinctly far from the distribution of S. fashengi sp. nov., may also suggest a distinct species status of this new species. Similar to S. fashengi sp. nov., S. vietnamica sp. nov. can be distinguished from S. nirvana, S. tropica and S. qiong by the color of antenna and the female tergum 9. In S. vietnamica sp. nov., the antenna has only the basal two segments darker than remaining part, and the female tergum 9 is slightly longer than wide. However, in the latter three species, the antenna has the basal seven to eight segments darker than remaining part, and the female tergum 9 is much longer than wide (the female of S. qiong is unknown).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFFEFFF183B865D8FE6BFE2E.taxon	description	(Figs. 6 – 8)	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFFEFFF183B865D8FE6BFE2E.taxon	diagnosis	Diagnosis. This species is characterized by the pale antenna with basal eight segments brown (Fig. 6 A), the forewing with the distance between each crossvein of RP area and corresponding forking point of RP branch shorter than (about 0.7 times as long as) the length of corresponding RP fork (Fig. 7 A), and the male gonocoxite 9 broad basally but rod-shaped distally and curved ventrad (Fig. 8). Re-description. Male. Body length 2.7 mm; forewing length 3.8 mm and width 1.3 mm; hindwing length 3.0 mm and width 1.3 mm. Body brown. Head (Fig. 6) mostly brown; compound eyes prominent and black. Scape brown, densely covered by long setae; swollen medially, about twice as long as wide; pedicel brown, slightly longer than flagellomere; flagellum partially damaged, remaining basal 23 flagellomeres on left antenna and 27 flagellomeres on right antenna, pale with basal six segments brown, each one densely covered by long setae. Maxillary and labial palpi pale brown; terminal segment of maxillary palpus triangular in lateral view, broadest at base, tapering distally. Thorax brown, covered by many short setae. Legs slender and pale brown, meso- and metacoxae brown; densely covered by long setae; tarsomere 1 equal to combined length of tarsomeres 2 - 4; pretarsal claws simple; arolium present. Forewing (Fig. 7 A) oval, distally rounded; trichosors present along distal margin; dark longitudinal stripes present among longitudinal veins; pterostigma indistinct, with indistinctive crossveins; costal area with 10 crossveins proximad pterostigma; two scp-ra crossveins present basally and distally; ScP weakened distally, not running into RA; three ra-rp crossveins; RP with three main branches; MA dichotomously branched distally; two rp-ma crossveins present; MP branched into MP 1 and MP 2, both branches distally bifurcated or trifurcated; two ma-mp, one mp 1 - mp 2 crossveins present; CuA with three pectinate and simple branches; three mp-cua crossveins; CuP, A 1 and A 2 simple; one cua-cup crossvein present; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posterior-most one; distance between each crossveins of RP area and corresponding forking point of RP branch shorter than (about 0.7 times as long as) corresponding marginal RP fork; 2 rp-ma, 2 ma-mp and mp 1 - mp 2 crossveins respectively connecting stem of MA, MP 1 and MP 2. Hindwing (Fig. 7 B) oval, distally rounded; trichosors present along distal margin; pterostigma indistinct, with indistinctive crossveins; costal area with seven crossveins proximad pterostigma; ScP running into RA distally; RP with three main branches; two ra-rp crossveins; MA distally trifurcated; one rp-ma crossvein present; MP branched into MP 1 and MP 2, both branches distally bifurcated or trifurcated; two ma-mp and one mp 1 - mp 2 crossveins present; CuA with four pectinate and simple branches; CuP, A 1 and A 2 simple; one a 1 - a 2 crossvein present; seven subapical gradates with each interrupted centrally by a rounded hyaline spot except anterior-most one and posteriormost one. Abdomen (Fig. 8) pale brown; tergum and sternum indistinct; setae almost lost or indistinct due to the poor condition of preservation. Sternum 9 elliptical in lateral view and plate-shaped in caudal view, covered by many setae. Gonocoxite 9 broad basally, rod-shaped distally, and distinctly curved ventrad, covered by many setae. Gonocoxites 11 arcuate, dorsal and ventral margins sinuous, lateral margin angular; gonostylus 11 small and spinous, slightly bended ventrad. Ectoprocts covered by many short setae, posteromedially concaved nearly to its half-length, forming a V-shaped incision; rounded lateroventrally. Hypandrium indistinct. Female. Unknown.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFFEFFF183B865D8FE6BFE2E.taxon	materials_examined	Type material. Holotype ♂, China: Hainan, Ledong Li Autonomous, Jianfengling Nature Reserve [18 ° 71 ′ N, 108 ° 87 ′ E], 16. XII. 1974, Fasheng Li (CAU).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFFEFFF183B865D8FE6BFE2E.taxon	distribution	Distribution. China (Hainan).	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
3971878AFFFEFFF183B865D8FE6BFE2E.taxon	discussion	Remarks. Sisyrina qiong has some characters greatly different from the other species of Sisyrina, i. e., the distance between each crossvein of RP area and corresponding forking point of RP branch shorter than the length of corresponding RP fork in forewing, and the 2 rp-ma, 2 ma-mp and mp 1 - mp 2 crossveins respectively located on the forks of MA, MP 1 and MP 2 veins. In the other species of Sisyrina except S. tropica (the states of the above characters are unknown by lack of description), the distance between each crossvein of RP area and corresponding forking point of RP branch is nearly as long as or longer than the corresponding RP fork in forewing, and the 2 rp-ma, 2 ma-mp and mp 1 - mp 2 crossveins are respectively located on the stems of MA, MP 1 and MP 2 veins. Concerning the male genital characters, the male gonocoxite 9 is broad basally but distally slenderly rod-shaped and curved ventrad in S. qiong, while this sclerite is elliptical in S. nirvana and S. tropica, and short and ovoid in S. fashengi sp. nov. Yang & Gao (2002) once doubted the generic affiliation of S. qiong based on its unique genital characters. However, we consider that the present placement of this species in Sisyrina should be correct by the presence of the combination of the following generic diagnostic character: three RP branches, seven subapical gradates, and male sternum 9 short and simple.	en	Yang, Ying, Liu, Xingyue (2021): New spongillaflies of the genus Sisyrina Banks, 1939 (Neuroptera: Sisyridae) from the Oriental faunal region. Zootaxa 5052 (4): 552-566, DOI: https://doi.org/10.11646/zootaxa.5052.4.5
