Toechorychus bombuscarus Tedesco

Tedesco, Anazélia M. & Aguiar, Alexandre P., 2013, <strong> Phylogeny and Revision of <em> Toechorychus </ em> Townes (Hymenoptera, Ichneumonidae, Cryptinae), with descriptions of thirty-five new species </ strong>, Zootaxa 3633 (1), pp. 1-138: 23-24

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Toechorychus bombuscarus Tedesco

sp. nov.

Toechorychus bombuscarus Tedesco   , sp. nov.

( Figs 7 View FIGURES 4–7 , 87 View FIGURES 85–90 , 161 View FIGURES 157–162 , 186 View FIGURES 175–186 )

Description. Holotype FEMALE. Fore wing length 4.70 mm.

Head. Mandible 1.65 as long as basal width, moderately pilose; ventral margin projected as crest; dorsal tooth distinctly longer than ventral tooth. Clypeus 1.72 as wide as high, subquadrate, minutely strigulate, apically smooth; apex 1.48 as long as base, truncate; apical margin sharp, medially straight. Supraclypeal area entirely densely punctate, dorsally also strigulate, moderately pilose, medially with oval prominent area; between antennal foramens with three U-shaped, concentric carinae, medially interrupted; radicle punctate. Antenna with 21 flagellomeres; white band starting at flagellomere 5, reaching flagellomere 15; flagellum slender; subapical flagellomeres slightly flattened. Supra-antennal area without distinct median carina, medially without longitudinal elevation, near antennal sockets not striate; dorsal half medially rugulose. Paraocular area finely strigulate. Vertex rugulose around ocelli, without sulcus; gena and vertex behind ocelli punctulate or minutely strigulate, sparsely pilose; gena in lateral view at level of dorsal portion of occipital carina narrow, ventrally wide; occipital carina faint, dorsally faint, V-shaped, ventrally slightly projected as crest, reaching hypostomal carina at mandible base or nearly so; hypostomal carina slightly projected as crest; malar space 1.35 as long as basal width of mandible.

Mesosoma   . Mesosoma   in dorsal view 2.15 as long as wide; in lateral view, mesosoma middle width 0.13 mm. Pronotum centrally smooth, latero-ventrally rugose behind collar, margin near mesopleuron ventrally corrugated; pronotal swelling strigulate; collar dorso-laterally rounded, distinctly swollen, anteriorly punctate; epomia very faint, almost indistinct. Mesoscutum sparsely pilose, lobes dorsally punctulate, laterally markedly corrugated, central lobe with sparse coarse punctures, central lobe without longitudinal sulcus or carina; notauli deeply impressed, posteriorly abruptly curved, U-shaped. Scutoscutellar groove faintly corrugated; scutellum 0.75 as long as wide, smooth; scutellar carina incomplete, restricted approximately to anterior 0.3; postscutellum 0.26 as long as wide; hind margin of metanotum with two short lateral carinae extending towards transverse furrow at base of propodeum. Subalar ridge somewhat elongate; mesopleuron dorsally medially markedly strigate, ventrally strigulate; mesopleural groove corrugated; epicnemial carina faint, dorsally curving backwards; dorsal end of epicnemial carina reaching 0.1 of posterior margin of pronotum, behind epicnemial carina without rounded confused-rugulose area; sternaulus medially shallow, interrupted, reaching base of mid coxa, markedly sinuate, moderately impressed; faintly corrugated; scrobe moderately deep, forming pit with sulcus. Mesothoracic venter strigulate; median portion of posterior transverse carina of mesothoracic venter long and straight, regularly shaped, without projections. Transverse furrow at base of propodeum laterally 0.23 as long as anterior portion of propodeum, moderately deep and narrow, medially wide, uniformly corrugated; anterior margin of propodeum without teeth; propodeum 1.27 as long as wide medially; anterior portion of propodeum finely strigulate or confused-rugose, medially with two posteriorly convergent faint longitudinal carinae; lateral longitudinal carina of propodeum represented by short curved carina; posterior portion of propodeum laterally strigate, medially confused-rugose, medially with two stout longitudinal carina; behind posterior transverse carina with two stout parallel longitudinal carinae; anterior transverse carina of propodeum complete, stout, medially slightly arched forwards; posterior transverse carina absent, only with lateral slight swellings; propodeal spiracle 1.50 as long as wide; pleural carina of propodeum complete, moderately stout; lower division of metapleuron faintly strigulate, sparsely pilose, juxtacoxal carina short and stout.

Wings. Fore wing: vein 2+3Rs almost straight; ramellus absent; vein 1M+Rs entirely irregular; vein 1cu-a straight, arising far from vein 1M+Rs base, angle with vein M+Cu about 90°; vein 2Cu 0.55 as long as vein 2cu-a; vein 4Rs 0.81 as long as vein 4M, slightly sinuous, almost straight; cell 1+2Rs 0.9 as high as pterostigma, pentagonal; vein 2M distinctly longer than vein 3M; vein 3M distinct, 0.58 as long as vein 2M. Hind wing: vein 1Cu 1.33 as long as vein cu-a; vein 2-1A reaching 0.80 of distance to posterior margin.

Legs. Tibia with very sparse short bristles; hind coxa elongate.

Metasoma. T1 0.55 as long as hind femur, without basolateral tooth; minutely coriarious; spiracle at anterior 0.54, prominent; postpetiole dorso-anteriorly convex; T2–8 minutely coriarious; centrally almost glabrous, laterally pilose; T2 1.17 as long as wide at apex; apex of T2 2.11 as wide as base. Dorsal valve of ovipositor with nodus indistinct; apex of lower valve with series of teeth; notch present.

Color. Head, mesosoma and metasoma pale yellow (239,220,173) with black marks. Head: pale yellow; mandible teeth, supra-antennal area posteriorly, interocellar area, vertex centrally, and occiput, black; scape ventrally, pedicel ventrally and flagellum ventrally, entirely pale yellow, whitish towards apex; flagellum completely whitish at f6–13, apically at f5, and dorsally at f14–16. Mesosoma   : mostly pale yellow, except for the following black marks: pronotum centrally, margin of central lobe of mesoscutum, lateral lobes of mesoscutum posteriorly, scutoscutellar groove, both axillary trough of mesonotum and metanotum, small mark between subalar ridge and hypoepimeron, scrobe, carinal triangle, anterior portion of propodeum, posterior portion of propodeum medially, and along pleural carina. Legs: yellow with brown (100,050,030) stripes; all t5 brown; all legs dorsally with longitudinal brown stripes at entire length, except for hind tarsus, whitish. Metasoma: pale yellow with black marks; T1 black at medial 0.2–0.8; T2–8 black at anterior 0.4; S2–4 laterally light brown.

Comments. Very similar to T. pirrus   sp. nov., from which it is differentiated by having epomia very faint, almost indistinct (vs. stout, restricted to space between posterior margin of collar and pronotal swelling in T. pirrus   sp. nov.); sternaulus reaching base of mid coxa, as in Fig. 44 View FIGURES 41–44. 41 (vs. not reaching, as in Fig. 43 View FIGURES 41–44. 41 ); pleural carina of propodeum complete, moderately stout (vs. irregular, fused with sculpture of propodeum and lower division of metapleuron); all legs dorsally with brown stripe (vs. yellowish, except coxae and hind trochanters); T4–8 black at anterior 0.4 (vs. T4–8 only medially black at anterior 0.1).

Male. Unknown.

Distribution. Known only from Ecuador ( Fig. 226 View FIGURES 224–231 ).

Biology. Unknown.

Material examined. Holotype ♀, ECUADOR: Zamora Chinchipe   , Río Bombuscaro , 4.12°S 78.98°W, 26–30.VI. 1996, 970 m, Malaise trap, P.Hibbs leg. ( AEIC). Complete, in good shape. GoogleMaps  


American Entomological Institute