taxonID	type	description	language	source
9C14D434FFF7FFDAFE97B1E93089FCF8.taxon	description	Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia. E-mail: yun-sundukov @ mail. ru Summary. Cladiucha prosvirovi sp. n. is described from North Vietnam. New species differs from Vietnamese C. insolita Konow, 1902 in the following characters: apical tarsomere of hind leg white, thorax densely punctate, serrulae with 10 – 12 subbasal teeth, abdomen without white spots. New species is most similar to Chinese C. megatheca Wei, 2010 but differs from latter by a large body, by the absence of M cell in the hind wing, and by the apical tarsomere of the hind leg white.	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	description	Figs 1 – 8	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	materials_examined	TYPE MATERIAL. Holotype – ♀, North Vietnam: Lao Cai Province, near Sa Pa Town, Cat Cat River, h ~ 1320 m, 22.33399 o N, 103.82281 o E, 24. IV 2013, A. Prosvirov leg.	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	description	DESCRIPTION. Female (Fig. 1). Length of body 18.5 mm. Colour. Black, with intense violet-blue metallic lustre. Mandibles dark brown-reddish; labrum pale brown; clypeus with pale whitish spot in the center; labial palp brown; basal segments of maxillary palp brown, 4 - 5 th segments whitish, apical segment gray; 1 - 4 th basal antennomeres with weak greenish metallic luster, other segments black; six apical antennomeres ventrally whitish. Cenchri gray. On fore legs, dorsal surface of apical 3 / 4 of femur, tibia (except for brown ventral surface) and tarsi whitish; claws light brown. On middle legs, long spot on dorsal surface of femur, tibia (except for brown ventral surface and apical spurs) and tarsi whitish; claws light brown. On hind legs, lateral side of coxa with whitish spot, dorsal surface of basal half of femur whitish, tibiae and tarsi purple, only basal 1 / 5 tibia whitish-brown and apical segment of tarsi brownish-white; claws light brown. Cercus and ventral margin of sheat brown. Wings uniformly infuscated; veins and stigma black. Microsculpture. Head, thorax and abdomen without microsculpture, glossy. Head (Figs 1 – 3). With short, whitish-gray hairs; fully punctured, more densely on inter- antennal area, frons and along lower edge. Labial palp 3 - segmented, maxilla 6 - segmented. Antennae with 23 antennomeres (apical represented by two fused antennomeres), first 2 x longer than broad, second about as long as broad, third about 2.5 x longer than broad, fourth to 22 th antennomeres with apex slightly narrower than long; third to 21 th antennomeres with short apically projecting rami, length of middle rami slightly longer than basal width of an- tennomere; apical two antennomeres without rami; apical 6 antennomeres with pale ventral sensory areas; length 2.5 x head width. Malar space very short, less than half diameter of front ocellus; distances between eye and hind ocellus, between hind ocelli, and between hind ocellus and posterior margin of head as 1.3: 0.9: 1.5; postocellar area moderately convex, about 1.3 x broader than long. Thorax (Figs 1, 6, 7, 8). Shiny, with short, whitish-gray hairs, rather densely punctate; upper half of mesepisternum densely punctate, lower half impunctate. Forewing with vein 2 A + 3 A basal to the anal cross vein not complete, partially atrophied at apex. Hindwing with open cell M; anal cell with long petiole. Tarsal claw with long inner tooth, longer and stouter than outer tooth. Hind basitarsus about 6.0 x longer than broad. Pulvilli on hind tarsomeres 1 – 4, all the same size. frontal view; 3 – right antenna; 4 – apex abdomen, lateral view; 5 – lancet, lateral view; 6 – thorax, lateral view; 7 – thorax, ventral view; 8 – apex of hind tarsus. Abdomen (Figs 1, 4, 5). Shiny, with sparse very short whitish-gray hairs. Sheath uniformly slender in dorsal view; straight above and rounded at apex and below in lateral view; lengths of sheath: hind tarsi: metabasitarsus = 8: 13.5: 6. Cercus about 5.0 x longer than broad, 3 / 4 length of sawsheath. Lancet relatively short, arched in lateral view, with about 30 serrulae; serrulae flat, medium with 10 – 12 subbasal teeth, serrulae indistinct at apex. Male. Unknown.	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	distribution	DISTRIBUTION. Vietnam (Lao Cai Province).	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	biology_ecology	HOSTS. Unknown.	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	discussion	REMARKS. New species is most similar to Cladiucha megatheca but latter is charac- terized by a smaller body (15 – 16 mm), cell M in the hind wing is closed, and hind legs are completely black (Wei, 2010). Vietnamese C. insolita differs from the new species in the following characters: clypeus and hind tarsus black; thorax almost impunctate; upper half of mesepisternum impunctate; serrulae with 4 – 5 subbasal teeth; first tergite, center and apical margin of apical tergite with white spots; 1 st and 2 nd antennomeres about as long as broad (Smith, 2017).	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
9C14D434FFF6FFD9FF4BB23A3615FE49.taxon	etymology	ETYMOLOGY. Named for Dr. Alexander S. Prosvirov, Lomonosov Moscow State University (Moscow, Russia), who collected this species and brought it to my attention.	en	Sundukov, Yu. N. (2020): A NEW SPECIES OF THE GENUS CLADIUCHA KONOW, 1902 (HYMENOPTERA: TENTHREDINIDAE) FROM VIETNAM. Far Eastern Entomologist 407: 25-28, DOI: 10.25221/fee.407.4, URL: http://dx.doi.org/10.25221/fee.407.4
