taxonID	type	description	language	source
F6B627BE010C5ECA980F4B8609932F9E.taxon	etymology	Etymology. The genus name is a combination of the type locality in the Kachin State of Myanmar and the stonefly genus Perla Geoffroy, 1762. The name is feminine in gender.	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
F6B627BE010C5ECA980F4B8609932F9E.taxon	diagnosis	Diagnosis. By monotypy, as for the type species.	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
BB11F44C9CD8527D9642DDACE2326758.taxon	description	Figs 1, 2, 3, 4, 5	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
BB11F44C9CD8527D9642DDACE2326758.taxon	etymology	Etymology. The species is named after Dr. Peter Zwick, who has made substantial contributions to the knowledge of Plecoptera.	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
BB11F44C9CD8527D9642DDACE2326758.taxon	diagnosis	Diagnosis. As for the genus.	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
BB11F44C9CD8527D9642DDACE2326758.taxon	description	Description. Body robust and slightly oblate (Fig. 1). Surface generally brown to dark brown, with hairs and setae of various size and shape (Fig. 1). - Head: Head wider than long (Fig. 2), anterior area of ecdysial suture dark brown. Anterior ocellus tiny; compound eyes large and rounded, length approximately 0.5 x head length; postocular area fringed with moderately long setae. Occiput pale brown (Fig. 2 A), with a transverse row of short spinules, the irregular spinules scattered and sinuous. Antennae partially preserved, dark brown and slender, each antennal segment wider than long, near glabrous, apically fringed with sparse short spines. Mouthparts of predaceous type (Fig. 2). Glossae of labium approximately as long as paraglossae. Maxilla well-developed; cardo broad, lateral surface covered with dense short spines; stipes elongated, with rounded, glabrous outer margin, boundary with lacinia invisible; lacinia long, outer margin circular, with two giant apical teeth and an inner comb of moderate marginal spines basal to the second apical tooth; the second shorter apical tooth of left lacinia truncate. Maxillary palp with four visible elongated palpomeres, distal palpomere much thinner and approximately half in length of previous segment. Mandible with three pointed apical teeth, anterior half of inner margin with a marginal comb of cylindrical, stout spines posterior to the base of apical teeth; molar area unmodified. Labial palp similar in length to maxillary palps, with three elongated palpomeres; distal palpomere thinner and slightly shorter than previous segments, apex obliquely truncate. All visible maxillary and labial palpomeres glabrous. - Prothorax: Pronotum wide and short with obtuse corners (Fig. 2 A), mostly dark brown, margins darker, anterior margin longer than posterior margin; surface glabrous, posteromedial area near the median suture with two irregular pale spots, posterior margin fringed with long cylindrical spines (Fig. 2 A, B). - Meso- and metathorax: Wing pads with anterior and posterior parts pale brown, medial part dark brown (Fig. 3); all wing pads with same size on meso- and metathorax; each wing pad with a transverse row of moderately long spines near anterior margin, dorsal surface and lateral margin mostly covered with dense patch of collapsed short spinules, apical one third of wing pad near glabrous; posterior notal contour not apparent. Thoracic gills not visible (Fig. 3 D). - Legs: Legs covered by irregular patches of setae with various size and shape (Fig. 4). Coxae and trochanters dorsally with moderate spines along lateral margins. Femora dorsally and ventrally covered with long cylindrical spines along anterior margin and posterior areas, posterior margin with dense long swimming hairs. Tibiae with several moderate spines and dense long swimming hairs along posterior margin, dorsal and ventral surfaces without obvious spines. Two giant and several smaller tibial spurs present. Tarsi with first two tarsomeres very short, third one approximately 2 x longer than first two combined and apically with several spines. Tarsal segments with sparse long swimming hairs along outer margin. Claws sharp and glabrous, inner margin with pronounced denticles. - Abdomen: Abdominal segments dark brown, each segment covered and posteriorly fringed with long cylindrical spines (Fig. 5). Two distinct abdominal gill remnants present anterior to the first segment (Figs 3 D; 5 C). Tergum 10 strongly projected backwards, near triangular in shape, exceeding posterior margin of paraprocts (Fig. 5 B). Paraprocts subtriangular, inner margins straight and with dense giant spines, posterior margins rounded and glabrous, posterior margins blunt (Fig. 5 D). Cerci partially preserved, dark, inner and outer margins fringed with sparse rows of giant spines, each segment slightly longer than wide (Fig. 5 B).	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
BB11F44C9CD8527D9642DDACE2326758.taxon	description	Measurements. BL 9.5 mm, HL 2.0 mm, HW 2.5 mm, ATL 4.0 mm (partially preserved), PL 1.2 mm, PW 2.0 mm, WL 3.0 mm, FLL 5.0 mm, MLL 6.0 mm, HLL 7.0 mm, ABL 5.0 mm, ABW 1.5 mm, CL 2.0 mm (partially preserved).	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
0F1F6C40309F548181E747F911E9511E.taxon	diagnosis	Diagnosis. For larvae. Body robust and slightly oblate. Head wider than long; anterior ocellus present but tiny; postocular area with moderate setae; occipital row of short spinules irregularly scattered and sinuous; antennal segment near glabrous, apically with sparse short spines; predaceous mouthparts; glossae near as long as paraglossae; maxilla well-developed; cardo broad, laterally with dense short spines; stipes elongated, with rounded, glabrous outer margin; lacinia elongated, with two giant apical teeth and an inner comb of marginal spines; maxillary palpomeres elongated, apical palpomere much thinner and approximately half in length of penultimate segment; mandible with three pointed apical teeth, anterior half of inner margin with a comb of cylindrical spines; molar area unmodified; labial palp similar in length to maxillary palp, apical palpomere thin and slightly shortened, apex obliquely truncate. Pronotum near trapezoidal, with dark margins and two posteromedial pale spots, posterior margin with long spines. Wing pads banded, outline circular, dorsally and laterally covered with dense spinules; notal contour invisible; thoracic gills absent. Legs with dense long swimming hairs; tibia with two giant and several smaller apical spurs; tarsi with first two tarsomeres much shorter than third one. Abdominal segments covered and posteriorly fringed with long cylindrical spines; tergum 10 strongly projected backwards; paraprocts subtriangular, with straight inner margins and rounded posterior margins; cerci with sparse giant spines along inner and outer margins.	en	Chen, Zhi-Teng (2022): The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera. Arthropod Systematics & amp; Phylogeny 80: 423-438, DOI: http://dx.doi.org/10.3897/asp.80.e82549, URL: http://dx.doi.org/10.3897/asp.80.e82549
