Ateleute amarakaeri, Bordera & Sääksjärvi, 2012

Bordera, Santiago & Saeaeksjaervi, Ilari E., 2012, Western Amazonian Ateleutina (Hymenoptera, Ichneumonidae, Cryptinae), Journal of Hymenoptera Research 29, pp. 83-118 : 87-90

publication ID	https://dx.doi.org/10.3897/jhr.29.3661
publication LSID	lsid:zoobank.org:pub:6D09CCF3-DE1D-4D7C-AEB7-B084C8036D18
persistent identifier	https://treatment.plazi.org/id/56072A09-2BC9-4FA4-A972-4B69F9A8C219
taxon LSID	lsid:zoobank.org:act:56072A09-2BC9-4FA4-A972-4B69F9A8C219
treatment provided by	Journal of Hymenoptera Research by Pensoft
scientific name	Ateleute amarakaeri
status	sp. n.

Treatment

Ateleute amarakaeri ZBK sp. n. Figs 2D View Figure 2 , 4C View Figure 4 , 5E-H View Figure 5 , 6D View Figure 6 , 7D View Figure 7 , 8D View Figure 8

Material examined.

Holotype: PERU, ♀, Dept. Madre de Dios, Los Amigos, 31-VII/7-VIII-2008, I. Gómez leg. a.s.l.: 233,4 m, Malaise T. 7, E: 381614.7, N:8610096.9 (UNSM). Paratype: PERU, 1 ♂, same locality, 5-12-VI-2008, I. Gómez leg. a.s.l.: 290m, Malaise T. 2, E: 380304.85, N: 8611305.81 (ZMUT).

Description.

Female. Body length (without ovipositor) 3.8 mm, head length × width 0.4 × 0.9 mm, mesosoma length × width (mesoscutum) 1.3 × 0.5 mm, length of ovipositor sheath 0.8 mm, fore wing length 3.0 mm, flagellum 4.5 mm.

Head. Transverse, 0.48 times as long as wide, strongly narrowed behind eyes, gena at same level as hind rim of eye (dorsal view). Antenna with 28 flagellomeres; flagellum longer than body, 1.50 times as long as fore wing ( Fig. 2D View Figure 2 ); its segments 1, 4, 7 and 12 about 9.50 (annellus excluded), 7.50, 2.57 and 1.42 times as long as wide, respectively; basal flagellar segments 1 to 4 slightly compressed, flagellomeres 5 to 9 cylindrical and from 10 to near apex depressed (flattened ventrally with short sensory setae in this area); maximum width of flagellum 2.33 times minimum width of first flagellomere; flagellum strongly tapered towards apex. Clypeus strongly convex, its margin sharp, slightly truncate in centre. Mandible short, 1.66 times as long as width at middle, teeth equal, base swollen. Malar space about 0.83 times as long as basal width of mandible. Occipital carina absent dorsally, ventrally joining hypostomal carina just b efore mandible. Ocellar-ocular distance and distance between hind ocelli 1.33 and 1.66 times maximum diameter of lateral ocellus, respectively. Face finely coriaceous, with silvery short hairs. Frons coriaceous. Vertex slightly coriaceous, with very sparse short hairs, lower vertex and occiput strongly concave centrally. Gena shiny, slightly coriaceous, hairless in upper half, with moderately long and dense silvery hairs in lower part.

Mesosoma. Upper margin of pronotum not swollen. Lateral part of collar bordered behind by weak carina. Pronotum coriaceous. Mesoscutum coriaceous, shiny. Notauli reaching tegula level, convergent, strongly impressed. Prescutellar groove without longitudinal wrinkles. Scutellum coriaceous, with complete lateral carinae. Mesopleuron coriaceous, with very fine and dense punctures and white hairs; these hairs usually absent in an antero-posterior diagonal band including speculum. Mesopleural fovea represented by a weak impression far in front of mesopleural suture. Sternaulus as a weak and short anterior depression. Metapleuron and propodeum finely and very densely punctate or rugulose-punctate on a coriaceous background, with very dense whitish hairs. Posterior transverse carina of mesosternum evanescent laterally. Propodeum 1.14 times as long as wide at spiracle level (dorsally measured), with a narrow longitudinal central depression; its spiracle rounded and very small, close to pleural carina. Anterior transverse carina absent. Posterior transverse carina present in centre and in area posteroexterna, absent laterally. Median longitudinal carinae faintly outlined; lateral longitudinal carina absent anterior to apical transverse carina, shortly present distad. Pleural carina strong. Area petiolaris confluent with areas posteroexterna. Vein 3 rs-m unpigmented. Vein 2 rs-m conspicuous, 0.40 times length of abscissa of M between 2 rs-m and 2 m-cu. Vein 2 m-cu inclivous with one short bulla. Cu-a of fore wing a little distad of Rs&M, inclivous. Abscissa of Cu 1 between 1 m-cu and Cu 1a inclivous, forming angle of 150° with Cu 1, 1.25 times length of Cu 1b ( Fig. 5E View Figure 5 ). M+Cu of hind wing strongly arched. Hind wing vein cu-a clearly shorter than abscissa of Cu between M and Cu 1. Hind wing with distal abscissa of Cu1 weak and unpigmented, so that Cu 1& cu-a is fairly smoothly curved ( Fig. 5G View Figure 5 ). Distal abscissa of 1 A of hind wing very short, nearly absent. Tip of axillus very close to anal margin. Tibiae and tarsi with sparse stout bristles, stronger and denser on hind leg. Hind femur with some isolated stout bristles on ventral and dorsal edge.

Metasoma. First tergite smooth and polished, about 1.50 times as long as maximum width ( Fig. 4C View Figure 4 ); its maximum width at apex about 3.27 times minimum width (at base). Median dorsal and dorsolateral carinae of first tergite absent, ventrolateral carinae more or less distinct. Spiracle at anterior 0.42 of first tergite. Tergite 2 0.86 times as long as maximum width, smooth and shiny, with short and very sparse hairs; tergites 3-8 slightly coriaceous, rather densely pubescent. Thyridium transverse, as short, inconspicuous, impressed and granulate depression. Ovipositor sheath 0.52 times as long as hind tibia, truncate at apex. Ovipositor moderately slender and slightly down curved, its tip elongate lanceolate, nodus weak, its lower valve with three inconspicuous lateral ridges at apex.

Coloration ( Fig. 2D View Figure 2 ). Head and mesosoma black; hind coxa, trochantellus, femur and tibia, metasoma and ovipositor, reddish-brown. Base of mandible and teeth, flagellum, dorsal basal part of first tergite and distal tarsomeres, brown. Band on flagellomeres 5-11, palpi, front and mid coxa, trochanter and trochantellus and tegula, white. Central part of mandible scapus and pedicel below, fore and mid femora, tibiae and tarsi, and hind trochanter and tarsus (except distal tarsomere), yellow. Ovipositor sheath brownish.

Male. Body length 3.5 mm, head length × width 0.3 × 0.6 mm, mesosoma length × width (mesoscutum) 1.1 × 0.5 mm, fore wing length 2.9 mm, flagellum 4.0 mm.

Head. Transverse, 0.57 times as long as wide, strongly narrowed behind eyes, gena slightly rounded (dorsal view). Antenna with 26 flagellomeres; flagellum filiform, longer than body, 1.39 times as long as fore wing ( Fig. 8D View Figure 8 ); basal half of flagellum slightly compressed. Mandible 1.83 times as long as its width at middle, teeth equal, base strongly swollen. Malar space about 0.44 times as long as basal width of mandible. Occipital carina absent dorsally, ventrally joining hypostomal carina just before mandible. Ocellar-ocular distance and distance between hind ocelli 1.00 and 1.37 times maximum diameter of lateral ocellus, respectively. Vertex slightly coriaceous, elevated above eye level, abruptly folded behind hind ocelli in a vertical lower vertex, lower vertex and occiput smooth and shiny, deeply concave centrally.

Mesosoma. Pronotum slightly coriaceous, shortly longitudinally strigose on lower hind corner. Prescutelar groove with weak longitudinal wrinkles. Whitish hairs of metapleuron and propodeum shorter. Mesopleural fovea represented by a weak impression far in front of mesopleural suture. Sternaulus virtually absent. Metapleuron punctate or rugulose-punctate on a slightly coriaceous background, with short whitish hairs. Median longitudinal carinae of propodeum absent, anterior to apical transverse carina replaced by a longitudinal narrow depression. Vein 2 rs-m 0.30 times length of abscissa of M between 2 rs-m and 2 m-cu. Cu-a of fore wing clearly distal to Rs & M. Abscissa of Cu 1 between 1 m-cu and Cu 1a inclivous, forming angle of 150° with Cu 1, 0.77 times length of Cu 1b ( Fig. 5F View Figure 5 ). Hind wing with distal abscissa of Cu1 absent so that Cu 1& cu-a is fairly smoothly curved ( Fig. 5H View Figure 5 ). Distal abscissa of 1 A of hind wing absent ( Fig. 5H View Figure 5 ). Hind femur with some sparse stout bristles on dorsal and ventral edge ( Fig. 7D View Figure 7 ). Hind tibia with dense stout bristles.

Metasoma. First tergite smooth and polished, about 2.39 times as long as maximum width, laterally with isolated short silvery hairs; maximum width at apex about 1.90 times minimum width (at base). Median dorsal carinae of first tergite absent, dorsolateral carinae shortly present at base, ventrolateral carinae slightly distinct posteriorly. Spiracle at anterior 0.30-0.40 of tergite. Tergite 2 shiny, coriaceous, with short and very sparse hairs laterally. Thyridium weak, as a granulate, small and transverse depression. Claspers with an inwardly curved profile dorsally, moderately pointed at apex ( Fig 6D View Figure 6 ).

Coloration ( Fig. 8D View Figure 8 ).Head, mesosoma, first tergite and hind coxa, black; mandibles (except base and teeth), palpi, front and middle legs (except tarsi), yellow. Scapus, pedicel, fore and mid tarsi, light brown. Antenna, base and teeth of mandibles, metasoma from second tergite, hind trochanter and trochantellus, tibia and tarsus, dark brown. Hind femur orange.

Taxonomic discussion.

Females differ from Ateleute carolina Townes, 1967, Ateleute grossa Kasparyan & Hernández, 2000 and Ateleute tinctoria Kasparyan & Hernández, 2000 by their coloration: head and mesosoma black and metasoma mostly reddish-brown. They differ from other South American species by the head being 0.48 times as long as wide; ovipositor sheath brownish, truncate at apex; antenna (except white ring) brown, with 28 flagellomeres; first tergite about 1.50 times as long as maximum width; abscissa of Cu 1 between 1 m-cu and Cu 1a inclivous, 1.25 times the length of Cu 1b; vein 2 rs-m conspicuous, 0.40 times length of abscissa of M between 2 rs-m and 2 m-cu; vein 2 m-cu inclivous; malar space about 0.83 times as long as basal width of mandible; hind wing with distal abscissa of Cu 1 weak and unpigmented, so that Cu 1& cu-a is fairly smoothly curved; and by their small body size, 3.8 mm. Males can be recognized by the claspers, which have an inward curved profile dorsally, moderately pointed at apex; hind femur with some sparse stout bristles, principally on dorsal and ventral edge; hind tibia with dense stout bristles; occipital carina present ventrally; abscissa of Cu 1 between 1 m-cu and Cu 1a moderately inclivous, 0.77 times length of Cu 1b and hind wing with distal abscissa of Cu1 absent, so that Cu 1& cu-a is fairly smoothly curved.

Remarks.

We have linked males and females of this species using the following characters: vein 2 rs-m conspicuous, 0.30-0.40 times the length of abscissa of M between 2 rs-m and 2 m-cu; abscissa of Cu 1 between 1 m-cu and Cu 1a inclivous, forming an angle of about 150° with Cu 1, 1.25 and 0.77 times length of Cu 1b, in female ( Fig. 5E View Figure 5 ) and male ( Fig. 5F View Figure 5 ), respectively, and hind wing with distal abscissa of Cu1 weak and unpigmented, so that Cu 1& cu-a is fairly smoothly curved ( Figs 5G, H View Figure 5 ). These characters in combination differ from those of other South American species. Additionally, both male and female have been collected in the same locality, Los Amigos, Madre de Dios (Peru). The specimens were also collected during the same period of time.

Etymology.

This species is dedicated to the Peruvian Amarakaeri people, who live in the Department of Madre de Dios, Peru.

Phenology.

Adults fly in June-August.

Distribution.

Peru.

Habitat.

Madre de Dios.Tropical rain forest.The study site is located near the Manu National Park. The average annual precipitation at the site ranges from 2,700 to 3,000 mm and the mean annual temperature is around 23 C°. The species was found by Isrrael Gómez.