taxonID	type	description	language	source
3B940173191D53E8900883E3B7EB7A0A.taxon	etymology	Etymology. The genus name is a combination of the words Perspicuuso and perla; the first word is derived from Latin ' perspicuus', meaning ' transparent' and refers to the transparent egg; the second word refers to the stonefly genus Perla Geoffroy, 1762.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
3B940173191D53E8900883E3B7EB7A0A.taxon	diagnosis	Diagnosis. By monotypy, as for the type species.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
1DD9789DC0F45EE18687EEF8AB14E30A.taxon	description	Figs 1, 2, 3, 4, 5	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
1DD9789DC0F45EE18687EEF8AB14E30A.taxon	etymology	Etymology. The specific epithet means ' broad' and is derived from Latin ' Perspicuusoperla lata ', refers to the broad female subgenital plate.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
1DD9789DC0F45EE18687EEF8AB14E30A.taxon	description	Description. Macropterous (Fig. 1 A-C); body long and stout, length (excluding antennae and cerci) ca. 7.5 mm, generally brown. Head (Figs 1, 2 A-C) short and wide, width three times longer than length, mostly dark brown, anterolateral and posterior margins pale. Triocellate, anterior ocellus large and elevated. Compound eye large, oval and strongly protruded laterad. Antenna brown and filiform, with 25 segments preserved, basal segments much shorter than wide, each antennal segment covered with dense short hairs. Maxillary palp slender, with five segments, apical segment unmodified. Labial palp short, length near 2 / 3 of maxillary palp, three-segmented, apical segment slightly shorter than second segment. Cervical gills invisible. Pronotum (Figs 1 A-B, 2 A-B) slightly narrower than head, transversely kidney-shaped, anterior margin longer than posterior margin, surface densely pubescent, with thick rugosity. Meso- and metanota mostly sclerotized, nearly as wide as pronotum. Legs mostly dark brown, femur longer and thicker than tibia (Fig. 1); two giant tibial spurs present ventrally; first two tarsal segments shortest (Fig. 2 D-F), euplantulae developed; third tarsal segment apically with long bristles; arolium without setae. Wings (Figs 1, 3) hyaline, veins dark brown. Forewings length ca. 10.0 mm. In right forewing (Fig. 3), ScP reaching RA after ra-rp; h stout and with regular obliquity, another 12 crossveins present between Sc and the anterior margin; one extra crossvein present beyond ScP; RA not reaching wing apex; RP originating at basal ⅓ of RA and with three branches; two crossveins present between RA and RP; M forked at near half of wing length; at least six crossveins present between M and CuA; other longitudinal veins invisible. In left forewing (Fig. 3), RA, RP and M similar to right forewing; two crossveins present between RA and RP; single crossvein present between RP and M; area between M and CuA with seven crossveins; CuA with four branches, two posterior branches fused basally; three crossveins present between CuA and CuP; CuP and AA 1 simple; AA 2 seems unforked and abruptly curved backwards at apical half. Hind wings length ca. 9.0 mm, veins invisible; anal area extremely broad, with multiple folds. Abdomen (Figs 1, 4) length ca. 4.5 mm, stout, generally brown. Abdominal terga unmodified; posterior margin of tergum 10 near truncate (Fig. 1 A-B). Paraproct strongly sclerotized, thumb-shaped, two times longer than wide, apex blunt and curved (Fig. 4 A-C). Subgenital plate originating from sternum 8, broad and rounded, lateral margins near parallel at anterior half; posterior margin of subgenital plate extended beyond posterior margin of tergum 10 (Fig. 4 A-C). Cerci (Fig. 4 A) membranous and dark brown, with 12 segments preserved; each segment covered with dense, moderately long bristles; boundaries of segments clear. Egg mass (Figs 1, 4 A, 5 A-B) composed of dozens of cylindrical eggs, diameter ca. 1.2 mm; posterior poles of all eggs stuck together in the center of egg mass, whereas collars of anterior poles pointing outward. Egg length ca. 0.75 mm, slender, slightly enlarged at middle (Fig. 5 A-E). Chorion entirely membranous, transparent and smooth. Collar very short, narrow, simple and weakly sclerotized, boundary with chorion inconspicuous, inner area circular and medially depressed, forming a funnelform median channel (Fig. 5 C-E). Anchor and pedicel absent.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
77BD8A5CD8F45BDA81CBE07E3F491400.taxon	etymology	Etymology. The first part of the compound noun refers to the transparent egg and is derived from Latin ' perspicuus'; the second part ' perlidae' refers to the stonefly family Perlidae Latreille, 1802.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
77BD8A5CD8F45BDA81CBE07E3F491400.taxon	diagnosis	Diagnosis. Triocellate; maxillary palp slender, apical segment unmodified; labial palp short, apical segment slightly shortened; cervical gills invisible. Legs with two giant apical tibial spurs; first two tarsal segments shortest, with developed euplantulae; arolium without setae. In forewings, ScP joining into RA after ra-rp; h stout and with regular obliquity; RA not reaching wing apex; RP originating at basal ⅓ of RA and with three branches; two crossveins present between RA and RP; CuA with four branches, two posterior branches fused basally; CuP and AA 1 simple; AA 2 appears unforked and abruptly curved backwards at apical half; hind wings with extremely broad and multifolded anal area. Abdominal segments unmodified; paraprocts sclerotized and thumb-shaped; subgenital plate broad, exceeding posterior margin of tergum 10. Cerci slender, membranous and with multiple segments. Egg mass with dozens of uniformly oriented cylindrical eggs; each egg with very short collar, membranous and transparent chorion, without anchor and pedicel.	en	Chen, Zhi-Teng (2022): Bizarre egg structure uncovers a new family of Plecoptera (Insecta) from mid-Cretaceous Burmese amber. Fossil Record 25 (1): 75-82, DOI: http://dx.doi.org/10.3897/fr.25.81862, URL: http://dx.doi.org/10.3897/fr.25.81862
