Allophrys hansoni Khalaim & Broad

Khalaim, Andrey I. & Broad, Gavin R., 2012, Tersilochinae (Hymenoptera: Ichneumonidae) of Costa Rica, part 1. Genera Allophrys Förster, Barycnemis Förster and Meggoleus To w ne s, Zootaxa 3185, pp. 36-52 : 44

Allophrys hansoni Khalaim & Broad , sp. nov.

( Figs 29, 30 )

Comparison. This species is immediately recognizable by the noticeable nasute prominence on the lower part of the clypeus ( Fig. 29 ). It is most similar to A. barycnemica sp. nov. as both have dark hind coxa and malar space about 1.2 x as long as basal width of mandible, but differs from this species by the flagellum with a subapical pale band ( Fig. 30 ) and its darker legs. It is also characterized by the thin and unusually long tarsal claws and the presence of conspicuous subapical finger-shaped structures on the outer surface of flagellomeres 3–13 (in other Costa Rican species of Allophrys such structures are developed only on flagellomeres 4–6).

Description. Female. Body length 5.4 mm. Fore wing length 3.7 mm.

Head distinctly rounded behind eyes in dorsal view; temple 0.6 x as long as eye width. Mandible with upper tooth longer than lower tooth. Clypeus with conspicuous median nasute prominence on lower part ( Fig. 29 ), punctate on upper part. Malar space about 1.2 x basal width of mandible. Antenna slender, with 18 flagellomeres; subbasal flagellomeres about 2.4, subapical flagellomere 1.2–1.5 x as long as broad; flagellomeres 3–13 with conspicuous subapical finger-shaped structures on outer surface. Face, frons and vertex granulate (granulation on vertex shallower), dull, impunctate. Temple punctulate, more or less smooth between punctures. Occipital carina complete. Hypostomal carina present.

Mesosoma elongate, 2.1 x as long as broad. Notaulus present as weak wrinkle. Mesoscutum and scutellum densely granulate, without distinct punctures. Foveate groove of mesopleuron moderately thin, weakly upcurved anteriorly, with short transverse wrinkles. Mesopleuron distinctly punctate, centrally more or less smooth between punctures, peripherally finely granulate. Propodeum granulate, without distinct basal area, with some longitudinal wrinkles dorsally; basal part of propodeum 0.53 x as long as apical area. Distance between propodeal spiracle and pleural carina equal to 2.0 x diameter of spiracle. Apical area long, flat, anteriorly rounded; apical longitudinal carinae weak but complete, reaching transverse carina anteriorly.

Fore wing with vein 2 m-cu interstitial to postfurcal. Vein 2 rs-m somewhat longer than abscissa of M between 2 rs-m and vein 2 m-cu. Vein Rs +2 r about as long as width of pterostigma. R 1 not reaching apex of fore wing. Hind wing with vein cu 1& cu-a distinctly reclivous (angle 35–40°).

Legs slender; hind femur 4.4 x as long as broad. Hind spurs apically distinctly curved. Claws thin, very long, not pectinate.

First tergite slender, 4.7 x as long as posteriorly broad, round in cross-section, gradually and very weakly widened from base to apex in dorsal view, smooth (petiole slightly striate laterally). Glymma absent. Second tergite 2.6 x as long as anteriorly broad. Thyridial depression about 4.0 x as long as broad. Ovipositor short, upcurved, with small inconspicuous dorsal subapical notch; sheath about as long as first tergite or hind tibia.

Head, mesosoma (including tegula) and first metasomal segment black; lower part of clypeus, palpi and mandible (teeth black) dark brown or brownish black. Antenna black with 3–4 subapical flagellomeres white ( Fig. 30 ). Pterostigma brownish black. Legs predominantly black, partly with brownish hue. Metasoma behind first tergite predominantly dark brown.

Male. Unknown.

Etymology. Named in honour of the Costa Rican entomologist, Dr. Paul Hanson (MUCR).

Material examined. Holotype female ( INBio) Cartago Prov., Paraíso, National Park Tapantí, La Represa, Torre del I.C.E., entre Porras y Villegas, 1800 m, VI.1997, coll. R. Delgado.

Paratype. Cartago Prov.: 1 Ƥ ( MUCR) 4 km NE Cañon, Genesis II, 2300 m, V.1995, coll. P. Hanson.

Distribution. Costa Rica (Cartago).

Figures

FIGURES 29 – 30. Allophrys hansoni sp. nov., Ƥ: 29 — head, left; 30 — head with antenna, left.