Ateleute huaorani, Bordera, Santiago & Saeaeksjaervi, Ilari E., 2012

Bordera, Santiago & Saeaeksjaervi, Ilari E., 2012, Western Amazonian Ateleutina (Hymenoptera, Ichneumonidae, Cryptinae), Journal of Hymenoptera Research 29, pp. 83-118: 93-95

publication ID

http://dx.doi.org/10.3897/JHR.29.3661

publication LSID

lsid:zoobank.org:pub:6D09CCF3-DE1D-4D7C-AEB7-B084C8036D18

persistent identifier

http://treatment.plazi.org/id/04425CF6-9D21-448A-B969-6391BC4CA653

taxon LSID

lsid:zoobank.org:act:04425CF6-9D21-448A-B969-6391BC4CA653

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Ateleute huaorani
status

sp. n.

Ateleute huaorani  ZBK  sp. n. Figs 2B, 3B, 4A, 5 A–B, 6C, 7C, 8C

Material examined.

Holotype: ECUADOR, ♀, Dept. Orellana, Onkone Gare, 0°39'25.7"S, 76°27'10.8"W, Canopy fogging, 216.3 m., 1.X.1996, T. L. Erwin et al. Lot.1686 (USNM).

Paratypes:

ECUADOR, 1 ♂, Dept. Orellana, Tiputini, 0°37'55.7"S, 76°8'39"W, Canopy fogging, 220-250 m., 6.II.1999, T. L. Erwin et al. Lot.2068 (ZMUT).

Description.

Female. Body length (without ovipositor) 4.6 mm, head length × width 0.5 × 0.9 mm, mesosoma length × width (mesoscutum) 1.4 × 0.5 mm, length of ovipositor sheath 1.1 mm, fore wing length 3.3 mm, flagellum 5.6 mm.

Head. Transverse, 0.50 times as long as wide, strongly narrowed behind eyes, gena at same level as hind rim of eye (dorsal view). Antenna with 29 flagellomeres; flagellum longer than body, 1.70 times as long as fore wing (Fig. 2B); its segments 1, 4, 7 and 12 about 9.40, 7.20, 2.36 and 1.16 times as long as wide, respectively; basal flagellar segments 1 to 4 slightly compressed, flagellomeres 5 to 8 cylindrical and from 9 to near apex depressed (flattened ventrally with short sensory setae in this area); maximum width of flagellum about 1.10 times minimum width of segment 1; flagellum strongly tapered towards apex. Clypeus strongly convex, its margin sharp slightly truncate in centre. Mandible short, 2.50 times as long as its width at middle, its teeth equal, base strongly swollen. Malar space about 0.66 times as long as basal width of mandible. Occipital carina absent dorsally, ventrally joining hypostomal carina just little before mandible. Ocellar-ocular distance and distance between hind ocelli 0.90 times maximum diameter of lateral ocellus. Face coriaceous, with c1ose, but shallow punctures and moderately long silvery hairs. Frons coriaceous. Vertex slightly coriaceous, with very sparse short hairs, lower vertex and occiput strongly concave centrally; gena smooth and shiny, or slightly coriaceous, hairless in upper half, with sparse silvery hairs in lower part.

Mesosoma. Upper margin of pronotum not swollen. Lateral part of collar bordered behind by weak carina. Pronotum coriaceous, laterally shortly longitudinally strigose. Mesoscumum coriaceous, shiny. Notauli reaching tegula level, convergent, strongly impressed. Prescutelar groove with very weak longitudinal wrinkles. Scutellum coriaceous, with complete lateral carinae. Mesopleuron coriaceous, with very fine and dense punctures and white long hairs; these hairs absent in an antero-posterior diagonal band including speculum. Mesopleural fovea absent. Sternaulus evanescent. Metapleuron and propodeum fine and very densely punctate or rugulose-punctate on a coriaceous background, with very dense whitish hairs. Posterior transverse carina of mesosternum complete (not interrupted infront of each middle coxa). Propodeum long, 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 the centre and in area posteroexterna, absent laterally. Median longitudinal carinae absent; lateral longitudinal carina absent anterior to apical transverse carina, shortly present distad. Pleural carina strong. Area petiolaris confluent with areas posteroexterna. Vein 3rs-m unpigmented. Vein 2rs-m conspicuous, 0.60 times the length of abscissa of M between 2rs-m and 2m-cu. Vein 2m-cu slightly inclivous with one bulla. Cu-a of fore wing a little distad of Rs&M, slightly inclivous. Abscissa of Cu1 between 1m-cu and Cu1a strongly inclivous, forming angle of 156° with Cu1, 0.90 times length of Cu1b. M+Cu of hind wing strongly arched (Fig. 5A). Hind wing with distal abscissa of Cu1 pigmented. Cu1&cu-a angled below middle. Distal abscissa of 1A of hind wing very short, nearly absent. Tip of axillus very close to anal margin. Tibiae and tarsi with sparse stout bristles, longer and denser on hind leg. Hind femur without stout bristles.

Metasoma. First tergite smooth and polished, about 2.16 times as long as maximum width (Fig. 4A); its maximum width at apex about 2.85 times minimum width (at base). Median dorsal carina of first tergite absent, dorsolateral carinae slightly present at basal half, the ventrolateral carinae more or less distinct. Spiracle at anterior 0.43 of tergite. Tergite 2 0.90 times as long as maximum width, shiny, slightly coriaceous, laterally with short and sparse hairs; tergites 3-8 rather densely pubescent. Thyridium absent. Ovipositor sheath 0.58 times as long as hind tibia, narrowly truncate at apex (Fig. 3B). Ovipositor moderately slender and slightly down curved (Fig. 2B), its tip elongate lanceolate, nodus weak.

Coloration (Fig. 2B). Head and mesosoma black; central part of mandibles, scapus and pedicel below, front and mid femur, apex of hind trochanter, hind femur and tibia entirely, metasoma except 3/4 of first tergite yellowish. Base of mandible and teeth, flagellum and dorsal central part of first tergite, propleura, front lateral part of pronotum and mesopleura, apex of hind coxa and hind trochantellus dorsally and distal tarsomeres of all legs brown. Ovipositor sheath brownish. Band on flagellomeres 5-12, palpi, front and mid coxa, trochanter and trochantellus and tegula, white. Fore and mid femora ventrally, tibiae and tarsi, base of hind coxa and trochanter, tarsus and base of first tergite, light yellow.

Male. Body length 3.5 mm, head length × width 0.3 × 0.6 mm, mesosoma length × width (mesoscutum) 1.0 × 0.4 mm, fore wing length 2.5 mm, flagellum 3.6 mm.

Head. Transverse, 0.56 times as long as wide, strongly narrowed behind eyes, gena slightly rounded (dorsal view). Antenna thin, filiform with 23 flagellomeres; flagellum longer than body, 1.41 times as long as fore wing (Fig. 8C), measures of flagellomeres different; basal half of flagellum slightly compressed. Mandible 2.50 as long as its width at middle. Malar space about 0.44 times as long as basal width of mandible. Occipital carina absent. Ocellar-ocular distance and distance between hind ocelli 1.20 and 1.00 times maximum diameter of lateral ocellus, respectively. Vertex slightly coriaceous, elevated above the eye level, abruptly folded behind hind ocelli in a vertical lower vertex, lower vertex and occiput smooth and shiny, slightly concave in the centre.

Mesosoma. Pronotum coriaceous. Mesopleuron coriaceous with short and sparse white hairs. Sternaulus slightly impressed anteriorly. Metapleuron and propodeum coriaceous with very sparse short whitish hairs. Vein 2rs-m conspicuous, 0.50 times the length of abscissa of M between 2rs-m and 2m-cu. Abscissa of Cu1 between 1m-cu and Cu1a extremely inclivous, forming angle of 166° with Cu1, 0.45 times length of Cu1b (Fig. 5B). Hind wing with distal abscissa of Cu1 pigmented. Cu1&cu-a angled below middle. Distal abscissa of 1A of hind wing absent. Front and middle tibiae and tarsi, and hind femur (Fig. 7C) without conspicuous stout bristles. Hind tibia with sparse stout bristles.

Metasoma. First tergite coriaceous about 2.00 times as long as maximum width; maximum width at apex about 2.20 times minimum width (at base). Median dorsal carinae of first tergite absent, dorsolateral carina present anterior spiracle, the ventrolateral carinae more or less distinct posteriorly. Spiracle at anterior 0.45 of tergite. Thyridium weak, as a granulate, small and transverse depression. Claspers with an inwardly curved profile dorsally, moderately pointed at apex (Fig. 6C).

Coloration (Fig. 8C). Body brown; mandibles (except teeth), all legs except coxae, trochantelli and distal tarsomeres yellow. Scapus and pedicel light brown.

Taxonomic discussion.

Females differ from Ateleute carolina  , Ateleute grossa  and Ateleute tinctoria  by their coloration: head and mesosoma entirely black or dark brown and metasoma mostly yellowish. They also differ from other South American species by their brownish ovipositor sheath which are narrowly truncate in the apex; head 0.50 times as long as wide; first tergite long and narrow, 2.16 times as long as wide posteriorly; antenna brown with 29 flagellomeres; and abscissa of Cu1 between 1m-cu and Cu1a strongly inclivous, about 0.90 times the length of Cu1b. Males can be recognized by their claspers, which have an inwardly curved profile dorsally, moderately pointed at apex; hind femur without stout bristles; hind tibia with sparse stout bristles; abscissa of Cu1 between 1m-cu and Cu1a, extremely inclivous, 0.45 times length of Cu1b; vein 2rs-m 0.50 times the length of abscissa of M between 2rs-m and 2m-cu; hind wing with distal abscissa of Cu1 present; Cu1&cu-a angled below middle; and the occipital carina absent.

Remarks.

We have linked males and females of this species using the following characters: vein 2rs-m conspicuous, 0.60 times in female (Fig. 5A) and 0.50 times in male (Fig. 5B) the length of abscissa of M between 2rs-m and 2m-cu, and abscissa of Cu1 between 1m-cu and Cu1a strongly inclivous, 0.90 times in female (Fig. 5A) and 0.45 times in male (Fig. 5B) length of Cu1b, and forming an angle about 156°-166° with Cu1 (Figs 5A, B). These characters in combination differ from those of other South American species.

Etymology.

This species is dedicated to the Ecuadorian Huaorani people, who live in the Department of Orellana, Ecuador.

Phenology.

Adults fly in October and February.

Distribution.

Ecuador

Habitat.

The holotype has been collected by canopy fogging in Onkone Gare, Department of Orellana, Ecuador (by Terry L. Erwin). The study site is located near the border of the Yasuní National Park. Vegetation at the site is old and diverse primary rain forest growing on relatively nutrient-rich soils.